Colloque GANIL 2026

Liste des Contributions

68. Introduction

21/09/2026 08:30

70. Invited talk

MANUEL CAAMAÑO FRESCO (Universidade de Santiago de Compostela)

21/09/2026 09:15

FISSION

91. Invited talk

Dr Pierre Morfouace (CEA, DAM, DIF)

21/09/2026 09:40

FISSION

30. PISTA@VAMOS: Upgrade of the Fission Program in Inverse Kinematics at GANIL

Dr Diego RAMOS DOVAL (GANIL)

21/09/2026 10:05

Oral Presentation

FISSION

PISTA@VAMOS: Upgrade of the Fission Program in Inverse
Kinematics at GANIL

D. Ramos 1 , A. Lemasson 1 , M.Rejmund 1 , P. Morfouace 2 , J. Taieb 2 , e849 collaboration, and e850 collaboration

1 GANIL,CEA/DRF-CNRS/IN2P3, Caen, France
2 CEA,DAM, DIF, Arpajon, France

The fission process has intrigued physicist for a long time from both, experimental and theoretical approaches. From a...

34. Investigation of Shell Effect Damping in Nuclear Fission Using VAMOS and PISTA

Theodore Efremov (CEA)

21/09/2026 10:25

Oral Presentation

FISSION

Studying nuclear fission provides insight into the interplay between the dynamic evolution of the compound nucleus and microscopic effects such as shell structure and pairing correlations. Measuring fission fragment yields not only advances our understanding of nuclear structure but also has important applications in nuclear reactor physics.

This work focuses on the evolution of fission...

36. Study of stretched states at CCB

Natalia Cieplicka-Orynczak (Institute of Nuclear Physics Polish Academy of Sciences)

21/09/2026 11:05

Invited Presentation (Only for invited speakers)

Shell evolution

Stretched resonances represent a unique class of high-lying nuclear excitations, characterized by a relatively simple structure. Their wave functions are dominated by a single particle-hole configuration, in which both the particle and the hole occupy orbitals with the highest angular momentum in their respective shells and couple to the highest possible spin value.

In light nuclei,...

71. Invited talk

Agota Koszorus (KU Leuven, SCK CEN)

21/09/2026 11:30

Shell evolution

16. Shell evolution investigated in 10Be, 12Be and 20O using solid and active targets

Miguel Lozano-González (IGFAE-USC)

21/09/2026 11:55

Oral Presentation

Shell evolution

Current experimental and theoretical efforts focus on shell-structure evolution to explain the variation of magic numbers with isospin asymmetry and to constrain the underlying nucleon-nucleon interactions. Advanced shell-model interactions attribute this to the monopole part of the nuclear Hamiltonian, for which additional experimental information on the two-body matrix elements is essential...

18. Interplay between quadrupole deformation and proton-neutron pairing through the prism of Anderson's limit

Hugo JACOB (GANIL)

21/09/2026 12:15

Oral Presentation

Shell evolution

Proton-neutron pairing is an exotic type of pairing that appears in nuclei with $N\sim Z$, as pairing requires an important overlap of the wave functions at the Fermi surface. Unlike standard like-particle pairing (neutron-neutron, proton-proton) that exists only in the isovector ($T = 1$) channel, proton-neutron pairing can exist in both the isovector and isosacalar ($T = 0$) channels. The...

25. Investigating the Shell Evolution and Neutron Structure of $^{68}$Ni through (d,p) and (p,d) Transfer Reactions

Prabhat Sharma (GANIL)

21/09/2026 12:35

Oral Presentation

Shell evolution

The evolution of nuclear shell structure in exotic nuclei provides key insights into the
fundamental nature of nuclear forces. In nuclei far from stability, conventional magic
numbers can disappear, while new ones may emerge, a phenomenon known as shell evolution [1].
A well-known example is the evolution of the N=28 shell gap from $^{40}$Ca to $^{48}$Ca,
which has been successfully...

43. Quadrupole and octupole collectivity in 106Cd explored via "unsafe" Coulomb excitation

Desislava Kalaydjieva (University of Guelph)

21/09/2026 12:55

Oral Presentation

Shell evolution

Stable cadmium isotopes were thought to have spherical ground states due to their phonon-like level structure, however, this was put into question in recent studies that suggested shape coexistence in $^{110,112}$Cd [1]. Further evidence supporting the presence of ground-state deformation in mid-shell Cd nuclei came from a Coulomb-excitation study of $^{106}$Cd [2] in line with...

72. Invited talk

Marine Vandebrouck (CEA Saclay Irfu)

21/09/2026 15:00

Collective modes

73. Invited talk

Adam Maj (IFJ PAN)

21/09/2026 15:25

Collective modes

3. From Global E1 Strength to the Pygmy Dipole: A Shell-Model Perspective on Light Nuclei

Oscar Le Noan (IPHC - CNRS - University of Strasbourg)

21/09/2026 15:50

Oral Presentation

Collective modes

Understanding how atomic nuclei respond to electromagnetic perturbations provides key insights into their structure and dynamics.
In this talk, I will address nuclear response functions, focusing on the electric dipole (E1) mode, one of the most fundamental collective excitations in nuclei. Particular attention will be paid to the Pygmy Dipole Resonance (PDR), an exotic low-energy mode...

54. Discrete Non-Orthogonal Shell Model: from mid-mass to heavy deformed nuclei

M. Duy Duc Dao (IPHC Strasbourg)

21/09/2026 16:10

Oral Presentation

Collective modes

We present an extension of the Discrete Non-Orthogonal Shell Model [1, 2] within a Variation After Projection approach [3] recently developed at IPHC, Strasbourg. This method is an alternative to the exact shell-model diagonalization [4] using non-orthogonal many-body expansions combined with symmetry restoration techniques [5]. We discuss the prospective of the new method for applications...

69. Invited Talk

Dr Arnaud Guertin (CNRS/IN2P3)

21/09/2026 17:00

Application & Instru.

53. Lightweight pulse-shape analysis using a machine learning ensemble algorithm for segmented HPGe

Dr Mohamad Moukaddam (University of Strasbourg)

21/09/2026 17:25

Oral Presentation

Application & Instru.

Pulse-shape analysis (PSA) techniques are widely used to measure quantities such as energy, time as well as other valuable information including particle identification and position of interaction.
In the case of large segmented high-purity germanium (HPGe) detector arrays, such as AGATA, analysing the pulse-shapes of the primary hit segment and its first neighbours is performed to determine...

32. MEASUREMENT OF THE 19F(n,a)16N CROSS SECTION WITH THE SCALP DETECTOR

nathan rousseaux (Laboratoire de Physique Corpusculaire de Caen)

21/09/2026 17:50

Oral Presentation

Application & Instru.

Accurate nuclear data are essential for the design and safety optimization of nuclear reactors, as uncertainties directly impact key reactor parameters. In particular, the 19F(n,a)16N reaction is of great interest for fluorine-based molten salt reactors. However, experimental data for the (n,a) channel remain scarce, with cross sections discrepant by up to a factor of three measured from the...

35. Development of a New $^3$He Cryogenic Target within the ATRACT Project

Dr Antoine Barrière (IJCLab)

21/09/2026 18:10

Oral Presentation

Application & Instru.

Transfer reactions are powerful probes to provide single-particle and collective properties of nuclear states, such as excitation energies, spin-parity assignments, and spectroscopic factors, extending even to unbound states. The extensive use of CH$_2$/CD$_2$ plastic and H$_2$/D$_2$ cryogenic targets has boosted the study of the neutron wave functions and thus research fields such as neutron...

44. High-precision TDRIV g-factor measurements at GANIL:\\ the $2^+_1$ state in $^{22}$Ne and its implications

Konstantin Stoychev (University of Guelph)

21/09/2026 18:30

Oral Presentation

Application & Instru.

The magnetic dipole moment of a nuclear state provides unique insight on the single-particle structure of the nucleus. Its experimental observable, the $g$ factor, can yield valuable information e.g. on the effective single-particle energies of proton and neutron orbitals, and shell evolution away from the valley of stability. One of the available methods for measuring $g$ factors of excited...

8. Laser Radiofrequency Double Resonance Spectroscopy in a Collimated Supersonic Gas-jet Expansion

Dr Andrea Raggio (KU Leuven, Institute for Nuclear and Radiation Physics)

21/09/2026 18:50

Oral Presentation

Application & Instru.

Laser spectroscopic techniques have become essential tools for probing the properties of nuclei produced at radioactive ion beam (RIB) facilities. By exploiting the interaction between nuclear and electronic structures, key nuclear observables such as electromagnetic moments, nuclear spins, and mean-squared charge radii can be extracted from measurements of hyperfine structures and isotope...

74. Invited talk

Olivier Sorlin (GANIL)

22/09/2026 09:00

Shell evolution

75. Invited talk

Pepijn Demol

22/09/2026 09:25

Shell evolution

56. First in-beam gamma-ray spectroscopy of (n, xn) reactions with EXOGAM at NFS

Hemantika SENGAR (GANIL)

22/09/2026 09:50

Oral Presentation

Shell evolution

Fast-neutron-induced nxn reactions occupy a region of reaction phase space that has never been explored from the perspective of nuclear structure studies. Compared to fusion-evaporation they transfer modest angular momentum and populate states off the yrast line; compared to transfer reactions they impose no single-particle selectivity and reach residual nuclei through statistical population...

11. Cluster structure of the ground state of light exotic nuclei beyond alpha clustering

Valerian Girard-Alcindor (IJCLab)

22/09/2026 10:10

Oral Presentation

Shell evolution

Understanding how cluster structures emerge within neutron-rich nuclei has become of great relevance in nuclear structure physics and it has been subject of different approaches of study. The present work aims to investigate this phenomenon in the ground state of light neutron-rich nuclei beyond alpha-clustering in the beryllium isotope chain via $^{10}$Be(p,$\alpha$)@38MeV/u and...

33. Is there an Isobaric Analog State of the Tetra-Neutron in hydrogen-4 ?

Quentin Délignac (IJCLab)

22/09/2026 10:30

Oral Presentation

Shell evolution

The existence of tetra-neutron ($^{4}$n) has been a long-standing question in nuclear physics and few-body neutron systems are of great interest for understanding nuclear forces and the structure of neutron-rich matter. Since the beginning of the century, the discovery of possible candidate for the $^{4}$n state, has been reported several times. However, it triggered a lot of debate about the...

76. Invited talk

Guillaume Scamps (L2I Toulouse, CNRS/IN2P3, Université de Toulouse)

22/09/2026 11:10

FISSION

90. Fission studies at the ISOLDE Solenoidal Spectrometer

Maria Vittoria Managlia (Chalmers University of Technology)

22/09/2026 11:35

Oral Presentation

FISSION

Nuclear fission remains a major challenge for both experimental and theoretical
studies due to its complexity, involving the collective motion of all nucleons
within a heavy nucleus. In this presentation, a novel experimental approach for
determining a key property of a nucleus, the fission barrier, is discussed.
The heavy radioactive ion beams of interest are provided by the...

10. Isotopic fission fragments yields in the Thorium region produced in inverse-kinematics with a 232Th beam

Alex Cobo Zarzuelo (GANIL)

22/09/2026 11:55

Oral Presentation

FISSION

Despite the development of different theoretical models [1] and simulation codes based on experimental data, such as GEF [2], the fission process is not reproduced with enough accuracy along the nuclear chart. Given that the fission mechanism is sensitive to the interplay between both microscopical quantities, such as nuclear structure of the fission fragments, and macroscopic effects; a fully...

28. Isotopic yield distributions of transfer-induced fission from 238U on light targets

Beatriz Errandonea (IGFAE and Dpt. de Física de Partículas, Univ. of Santiago de Compostela, E-15758, Santiago de Compostela, Spain)

22/09/2026 12:15

Oral Presentation

FISSION

The interplay between macroscopic liquid-drop properties and microscopic effects represents a fundamental challenge in nuclear fission [1]. This competition can be probed through excitation-energy distributions, as experimental evidence shows a systematic attenuation of structure-dependent effects, thereby progressively revealing the underlying macroscopic component of the potential-energy...

41. Evolution of the fission fragment angular momentum

Katarzyna Mazurek (Institute of Nuclear Physics PAN)

22/09/2026 12:35

Oral Presentation

FISSION

This study [1] explores the role of nucleon exchange for the generation of the fission fragment angular momenta. For a number of typical fission cases, samples of 10,000 shape evolutions are generated by Langevin simulation [2] and, subsequently, for each such evolution, the nucleon exchange transport theory previously developed for damped nuclear reactions [3] is used to obtain the...

42. Probing fission fragments spin distribution from $^{238}U + ^{9}Be \rightarrow ^{247}Cm$ using AGATA & VAMOS++

J. Bequet (GANIL)

22/09/2026 12:55

Oral Presentation

FISSION

Nuclear fission remains a complex quantum many-body process in which several fundamental properties are not yet fully understood. In particular, the origin of the angular momentum of fission fragments is still under debate. Recent experimental results tentatively probed the angular momentum at scission from the measurement of the spin distributions of fission fragments [1]. Their...

77. Invited talk

Araceli LOPEZ-MARTENS (IJCLab)

22/09/2026 15:00

Heavy and Superheavy nuclei

78. Invited talk

Yannen Jaganathen (National Centre for Nuclear Research, Pasteur 7, Warsaw, Poland)

22/09/2026 15:25

Heavy and Superheavy nuclei

14. First results of the SEASON detector commissioning and insights on the octupole collectivity in 221Ac

Mathilde Ragot (CEA)

22/09/2026 15:50

Oral Presentation

Heavy and Superheavy nuclei

Nuclear deformation has been a topic of interest for many decades. While most nuclei can be described using only quadrupole deformation, recent experimental results [1, 2], in agreement with theoretical predictions [3, 4], indicate that a more exotic type of deformation, namely octupole deformation, is needed to best describe nuclei in certain regions of the nuclear chart. In particular, the...

7. Impact of Nuclear Structure on Fusion–Fission Dynamics in Superheavy Element Synthesis

Yoshihiro Aritomo (Kindai University)

22/09/2026 16:10

Oral Presentation

Heavy and Superheavy nuclei

Yoshihiro Aritomo$^{1}$, Kosuke Kawa$^{1}$i, Kohta Nakajima$^{1}$, Shinya Takagi$^{2}$, Akira Yumikura$^{1}$

$^{1}$ Graduate School of Science and Engineering, Kindai University, Osaka, 577-8502, Japan
$^{2}$ RIKEN Center for Computational Science, Kobe, 650-0047, Japan

Currently, investigations into the synthesis of superheavy elements are pursued with two principal objectives. The...

45. Studying spontaneous fission in neutron-deficient Md isotopes

Margarida Paulino (GANIL)

22/09/2026 16:30

Oral Presentation

Heavy and Superheavy nuclei

In the transfermium region (Z $\geq 100$), spontaneous fission (SF) is a prominent decay mode, often competing with alpha and beta decay. However, experimental measurements remain challenging for most super-heavy nuclei (SHN) due to their low production cross-section. Stability against SF is governed by the fission barrier, which is strongly influenced by shell effects [2]. Hence, studies of...

79. Invited talk

Fairouz HAMMACHE (IJCLab Orsay)

22/09/2026 17:20

Astrophysics

80. Invited talk

Stephane Goriely (Université Libre de Bruxelles)

22/09/2026 17:45

Astrophysics

40. Core deformation in weakly-bound exotic nuclei and the transfer to the continuum of 17C

JOSE ANTONIO LAY VALERA (Universidad de Sevilla)

22/09/2026 18:10

Oral Presentation

Astrophysics

The study of reactions involving weakly bound exotic nuclei is an active field due to advances in radioactive beam facilities. Many of these nuclei can be approximately described by a model consisting of an inert core and one or more valence nucleons. However, to properly describe some of these nuclei within few-body models, additional effects must be considered, such as deformations and...

4. 12Be structure study via resonant elastic scattering with ACTAR TPC

Lou Dienis (GANIL - Université de Caen Normandie)

22/09/2026 18:30

Oral Presentation

Astrophysics

The ¹²Be nucleus lies far from the valley of stability in the neutron-rich region of the beryllium isotopes. As a light exotic nucleus exhibiting a breakdown of the classical magic number N = 8, ¹²Be provides a valuable testing ground for exploring the interplay between shell evolution, clustering, and deformation.

The structure of ¹²Be was investigated through the resonant elastic...

48. Universal Few-Body Correlations in Four-Particle Halo Structures: Application to Carbon-22

Dr Rafael Francisco (Laboratoire De Physique Des 2 Infinite Irène Joliot-Curie)

22/09/2026 18:50

Oral Presentation

Astrophysics

Halo nuclei, where weakly bound nucleons extend far beyond a compact
core, offer a unique window into universal few-body physics near the
limits of nuclear stability. Their properties are controlled by
low-energy parameters, such as separation energies, scattering lengths
and correlations among the valence particles, making them ideal
benchmarks for testing universality in nuclear...

59. Ab Initio Nuclear Inputs from NCSMC for Precision Atomic Measurements

Hoang Dang Khoa Nguyen (IJCLab)

22/09/2026 19:10

Poster

Poster session

Recent advances in high-precision experimental techniques, such as the QUARTET collaboration with muonic atom spectroscopy, are pushing the boundaries of our ability to measure the absolute charge radii and structural properties of light nuclei. However, extracting fundamental physics from these high-precision measurements requires equally precise, first-principles theoretical inputs. Here, I...

67. Calibration of Phoswich detectors for the MORA Experiment

Mme Marah Jbayli (GANIL)

22/09/2026 19:10

Poster

Poster session

The observed matter–antimatter asymmetry in the Universe remains one of the major open questions in modern physics. The Matter’s Origin from RadioActivity experiment (MORA) aims to answer this question by searching for CP violation by measuring the so-called D correlation parameter from nuclear beta decay. This parameter is sensitive to time-reversal symmetry violation and therefore to CP...

31. Developments towards laser spectroscopy of molecules in a supersonic gas jet at S3-LEB

Afonso SIMOES DOS SANTOS VICENTE (IJCLab)

22/09/2026 19:10

Poster

Poster session

Radioactive molecules have recently emerged as precision probes for anomalous electromagnetic moments, possibly offering unprecedented sensitivity to parity violation and time reversal symmetry violation [1]. In current experiments at radioactive ion beam facilities, the high temperature of the different molecular degrees of freedom is a crucial limiting factor for sensitive measurements. To...

15. Exotic decay channels at S3-LEB: new detection setup for proton radioactivity and more

Silvia Bara (IKS, KU Leuven, Belgium)

22/09/2026 19:10

Poster

Poster session

Most of the known unstable nuclei undergo one of the main decay channels by emitting α/β particles, or γ rays. In some cases, however, more rare and exotic phenomena, like proton radioactivity, cluster radioactivity or β-delayed fission, emerge and characterise different regions of the nuclear chart.

Neutron-deficient nuclei approaching the proton drip-line start having negative proton...

60. Probing Beyond the Standard Model with Beta Decay and Electron Capture

M. Victor Dumenil (LPC Caen)

22/09/2026 19:10

Poster

Poster session

Nuclear beta decay and electron capture allow us to probe the Standard Model (SM) and search for new physics in competitive and complementary ways to the LHC. In particular, beta decay can be extremely sensitive to exotic scalar and tensor currents at the TeV scale through precision measurements. This sensitivity shows up most clearly in the Fierz interference term, $b_F$, which is linearly...

5. Revisiting 48Cr: New Shell Model Insights into Nuclear Structure

M. Oscar Le Noan (IPHC Strasbourg)

22/09/2026 19:10

Poster

Poster session

The 48Cr nucleus stands as a paradigmatic example of a nuclear rotor within the pf-shell.
Available shell-model and mean-field calculations for this nucleus consistently
reveal features of well-deformed systems: a rotational-type energy spectrum,
a bell-shaped trend in B(E2; 2+->0+) transitions across the Cr isotopic chain (peaking at 48Cr),
and significant ground-state deformation...

23. Development of Control and Data Acquisition Systems for the S3-Low Energy Branch

Skyy Pineda (Laboratoire de Physique Corpusculaire de Caen)

22/09/2026 19:15

Poster

Poster session

The S$^3$-Low Energy Branch (S$^{3}$-LEB) was designed as a low-energy radioactive beam experiment that incorporates in-gas-jet laser resonance ionization spectroscopy (IGLIS)[1], mass spectrometry (PILGRIM)[2], and decay spectroscopy (SEASON)[3,4]. This combination of experimental techniques provides a unique capability to produce, purify, and characterize low-energy radioactive ion beams...

47. Effect of Constraining the shell gap of $^{40}\text{Ca}$ using Modified RMF approach

Nitin Mahavar (School of Physical Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari Campus, Santacruz East, Mumbai - 400098, INDIA)

22/09/2026 19:15

Poster

Poster session

Excitations across the Z=20 shell gap ($1d_{3/2} - 1f_{7/2}$) have been studied within the framework of the cranked relativistic mean field (RMF) model (Physics  Reports 322, 1 (1999)). A systematic increase in the discrepancy between theoretical predictions and experimental shell gap energy differences was observed with increasing isospin asymmetry. To address this limitation, the RMF...

21. Probing the Nature of the Charge Radii Kink at N=126: In-source Laser Spectroscopy in the Lead Region

Zixuan Yue (University of York)

22/09/2026 19:15

Poster

Poster session

Nuclei near doubly magic shell closures are key benchmarks for different theoretical models, as their properties in these regions often exhibit sharp discontinuities. In the lead region ($Z=82$), isotopic chains exhibit a pronounced increase in mean-square charge radii when crossing the neutron shell closure at $N=126$. Although this “kink” feature is systematically observed, its physical...

55. A new intruder state in ⁵⁷Ni revealed by fast-neutron (n,2n) spectroscopy at NFS

Hemantika SENGAR (GANIL)

22/09/2026 19:20

Poster

Poster session

The $^{57}$Ni nucleus, with $Z=28$ and $N=29$, sits one neutron above the doubly-magic $^{56}$Ni core and provides a clean testing ground for cross-shell excitations across the $N=28$ gap. Its level scheme has been mapped extensively through fusion-evaporation at high spin and through single-neutron pickup at low excitation, yet a substantial region of $(J, E_x)$ phase space, low-spin states...

22. Developments of the S3-LEB ion transport and trapping : simulations and measurements

M. Y. Merrer (Université de Caen Normandie)

22/09/2026 19:20

Poster

Poster session

The SPIRAL2 facility in GANIL will extend the capabilities of studying exotic nuclei by producing beams of radioactive isotopes with very high intensities [1]. The Super Separator Spectrometer (S$^{3}$) will select the short-lived nuclei produced by fusion-evaporation reactions, and the S$^{3}$-Low Energy Branch (S$^{3}$-LEB), installed at the focal plane of S$^{3}$, will be dedicated to the...

50. Probing nuclear structure and astrophysical processes with direct reactions: overview of the INDRA-FAZIA 2025-2026 campaign

Dr Diego Gruyer (LPC Caen)

22/09/2026 19:20

Poster

Poster session

Since 2025, the INDRA-FAZIA collaboration launched a new scientific program at GANIL to explore the structure of light nuclei and astrophysical processes using direct reactions. A first experiment focused on measuring the matter radius of the carbon-12 Hoyle state via 12C+12C elastic and inelastic scattering at 105 MeV. Preliminary analysis confirms the excellent performance of FAZIA in...

57. Grain Size Effects on Radiation-Induced Structural Disorder and Local Bonding Evolution in Ce0.75Gd0.25O2 Correlated with First-Principles Insights

VIVEK KUMAR (Jawaharlal Nehru University)

22/09/2026 19:25

Poster

Poster session

Understanding how fluorite oxides accommodate irradiation-induced defects is important for the development of radiation-tolerant materials for advanced nuclear systems. In this work, 25 mol% Gd₂O₃-doped CeO₂ nanopowders were synthesized and sintered at 800°C and 1300°C to obtain fluorite microstructures with different grain sizes and investigate their grain-size-dependent response under swift...

61. Status of the RFQ Cooler-Buncher for the MORA Experiment at DESIR

vincent bosquet (LPC Caen)

22/09/2026 19:25

Poster

Poster session

The MORA project [1] aims to perform a high-precision measurement of the
D correlation in nuclear beta decay in order to search for CP violation,
using a transparent Paul trap combined with laser orientation
techniques. The experiment is currently installed at JYFL (Finland),
where it operates with a Mg beam provided by the IGISOL facility. In
the near future, MORA will be moved to the...

81. Invited talk

Héloise GOUTTE (GANIL)

23/09/2026 09:00

Interdisciplinary Research / Applications

82. Invited talk

Francois Chevalier (CEA)

23/09/2026 09:25

Interdisciplinary Research / Applications

24. Advancing Nuclear Data for Next-Generation Reactors: (n, xn γ) Cross Section Measurements at NFS

Dr Greg Henning (IPHC)

23/09/2026 09:50

Oral Presentation

Interdisciplinary Research / Applications

The "Nuclear Data for Reactors" (DNR) group at the Institut Pluridisciplinaire Hubert Curien (IPHC, CNRS/University of Strasbourg) leads experimental research to characterize inelastic neutron scattering and (n, xn) reaction cross sections. These data are essential for the design and safety of advanced nuclear reactors, as they influence neutron energy distribution, material activation, and...

62. Neutron-Induced Light-Ion Emission Studies at GANIL-NFS with the Medley Setup

Lucas De Arruda Serra Filho (GANIL / Uppsala University)

23/09/2026 10:10

Oral Presentation

Interdisciplinary Research / Applications

The emission of light-ion (p, d, t, He3, α) in a neutron-induced reaction can be described by different mechanisms, whose relative contribution evolves with the energy available in the system. While the compound nucleus formation dominates at lower energies, following the thermalization of excited states, a continuous, smooth process progressively emerges when moving towards intermediate...

6. Regularities and inheritance near N = 126 probed by beams far from the valley of stability

Dr Navin ALAHARI (GANIL)

23/09/2026 11:00

Shell evolution

Invited Presentation (Only for invited speakers)

Shell evolution

The study of the evolution of properties of the nucleus as a function of excitation energy, angular momentum and isospin is a path for searching for simple patterns to understand its structure. Among challenging problems in physics is the understanding of emergent collective excitation modes in interacting quantum many-body systems in terms of the microscopic degrees of freedom. Such...

12. Spectroscopy of neutron-rich Li isotopes for the s2384 experiment with ACTAR TPC

Iván Blanco Calviño (IGFAE-USC)

23/09/2026 11:25

Oral Presentation

Shell evolution

Neutron-rich lithium nuclei are ideal systems for studying the interplay between many-body correlations and the properties of the particle continuum. For example, $^{11}$Li and $^{12}$Li have a large neutron-to-proton imbalance and a very low neutron-separation energy, and their structure is expected to be influenced by coupling to the continuum. To date, only a few models, like the Gamow...

37. Exotic phenomena at the dripline : the most neutron-rich boron isotopes

Emeline Oliveira (CEA IRFU-DPHN)

23/09/2026 11:45

Oral Presentation

Shell evolution

The study of nuclei around the neutron dripline allows to investigate surprising or unexpected phenomena that occur at the edges of the nuclear landscape. Neutron-rich nuclei provide access to regimes where the description of states becomes sensitive to nucleon-nucleon interactions, and the structure models to be challenged. In this context, the boron isotopic chain is an ideal case of study...

38. Probing spin-orbit splitting and shell evolution in $^{34}$Si via the $^{34}$Si$(p,d)$$^{33}$Si transfer reaction

Raquel Nicolás Del Álamo (INFN Padova and Università degli studi di Padova)

23/09/2026 12:05

Oral Presentation

Shell evolution

Exotic nuclei offer a unique window into the fundamental properties of nuclear forces, particularly through the evolution of their shell structure. Far from the valley of stability, canonical magic numbers are no longer preserved: shell gaps can weaken or vanish entirely, driven by the proton-neutron interaction at the microscopic level. The monopole component of this interaction is understood...

39. Probing the low-spin structure of $^{46}$K via $^{46}$Ar~$\beta$ decay

Sara Pigliapoco (GANIL)

23/09/2026 12:25

Oral Presentation

Shell evolution

Beta-decay studies provide a powerful and selective tool for investigating low-spin states in atomic nuclei, offering information that is complementary to, and often extends, that obtained from direct reaction studies.
In this work, we present a study of low-spin excited states in $^{46}$K, populated via the $\beta$ decay from the $0^{+}$ ground state of $^{46}$Ar. The nucleus $^{46}$K...

49. Shell evolution in oxygen probed through unbound states via 19O(d,p$\gamma$)

Charlie James PAXMAN (GANIL)

23/09/2026 12:45

Oral Presentation

Shell evolution

The neutron dripline in oxygen isotopes presents a clear challenge and unique opportunity for studies of shell evolution and nuclear structure. The heaviest observed bound isotope of fluorine (Z=9) has 22 neutrons, whereas oxygen -- with only one fewer proton, Z=8 -- can only bind 16 neutrons. This striking anomaly is a result of an increase in the spacing between the $\nu$(d$_{3/2}$) orbital...

92. Invited talk

Dr Emmanuel CLEMENT (GANIL)

24/09/2026 09:00

Invited Presentation (Only for invited speakers)

Present & Future GANIL Facilities

93. Invited talk

Julien PIOT (GANIL)

24/09/2026 09:25

Invited Presentation (Only for invited speakers)

Present & Future GANIL Facilities

94. Invited talk

Sarina Geldhof (GANIL)

24/09/2026 09:50

Invited Presentation (Only for invited speakers)

Present & Future GANIL Facilities

95. Invited talk

Dr Oleg Tarasov (FRIB / MSU)

24/09/2026 10:15

Invited Presentation (Only for invited speakers)

Present & Future GANIL Facilities

83. Invited talk

Dr Frédéric Nowacki (IPHC Strasbourg)

24/09/2026 11:00

Heavy and Superheavy nuclei

65. Reaction dynamics in the synthesis of superheavy nuclei

Tomasz Cap (National Centre for Nuclear Research)

24/09/2026 11:25

Invited Presentation (Only for invited speakers)

Heavy and Superheavy nuclei

The synthesis of superheavy nuclei (SHN) in heavy-ion fusion-evaporation reactions is governed by a delicate interplay between two competing effects. On one hand, the capture and fusion cross section rises with the bombarding energy as the projectile overcomes the Coulomb barrier and the dinuclear system evolves toward a compound nucleus. On the other hand, the survival probability of the...

20. A compact continuous-wave laser cavity for laser spectroscopy at GISELE/FRIENDS$^{3}$

Valentin MARCHAND (IJCLab : Nucléaire - SDF)

24/09/2026 11:50

Oral Presentation

Heavy and Superheavy nuclei

The GANIL accelerator complex in Caen (France) recently commissioned a new superconducting linear accelerator as part of the SPIRAL2 facility. This facility enables the production of heavy and super-heavy radionuclides via fusion-evaporation reactions at the entrance of the Super Separator Spectrometer (S$^{3}$) experimental area. There, the secondary...

66. MR-ToF measurements of the exotic 94Ag

Ville Virtanen (University of Jyväskylä)

24/09/2026 12:10

Oral Presentation

Heavy and Superheavy nuclei

In the last decade Multi-Reflection Time-of-Flight Mass-Spectrometers (MR-ToF-MS) [1] have been established as integral parts of radioactive ion beam facilities. These devices are used to separate and to measure the atomic masses of particularly exotic, short-lived radioactive nuclei to high precision, shedding light on the nuclear forces [2], the composition of neutron stars [3], and the...

26. Laser resonance chromatography at S3: a novel method for superheavy element spectroscopy

Tudor Stefan (GANIL)

24/09/2026 12:30

Oral Presentation

Heavy and Superheavy nuclei

Optical spectral lines serve as unique fingerprints for the elements and provide the most precise means to study their electronic structure, as well as reveal properties of atomic nuclei. Atomic spectroscopy has been advancing towards ever heavier atomic species, with superheavy elements (SHE) being of particular interest due to their role in understanding nuclear stability at the top of the...

27. Commissioning results of the S3 Low Energy Branch at GANIL-SPIRAL2

Andres Felipe LOPEZ (PhD GANIL CNRS)

24/09/2026 12:50

Heavy & Superheavy nuclei

Oral Presentation

Heavy and Superheavy nuclei

Laser spectroscopy for studying the ground- and isomeric-state properties of exotic nuclei has established itself as a versatile and powerful tool, capable of providing access to nuclear-model-independent data such as mean-square charge radii, magnetic dipole and electric quadrupole moments, and nuclear spins [1]. For resonance ionization spectroscopy, a critical set of conditions is having...

84. Invited talk

Caterina Ciampi (GANIL)

24/09/2026 15:00

Heavy ion Collisions

51. Constraining the nuclear equation of state with heavy-ion collisions at GANIL

Dr Diego Gruyer (LPC Caen)

24/09/2026 15:25

Oral Presentation

Heavy ion Collisions

The equation of state (EoS) of neutron-rich matter is a cornerstone for understanding the structure and dynamics of neutron stars, from their radii and tidal deformability to cooling mechanisms. However, the density dependence of the nuclear symmetry energy term remains a major source of uncertainty, particularly at densities near, and above, nuclear saturation density. While astrophysical...

9. Μeasurement of the Ηoyle state radius using single and mutual excitation inelastic scattering

Ilham DEKHISSI

24/09/2026 15:45

Oral Presentation

Heavy ion Collisions

The second $0_{2}^+$ state of $^{12}$C at an excitation energy of 7.654 MeV, known as the Hoyle state [1], is crucial to understanding how $^{12}$C is formed in stellar nucleosynthesis. Despite recent studies, there is no consensus on the properties of the Hoyle state, with different theoretical models predicting a range of radii and spatial arrangements[2,3].

Experimentally, only a few...

86. Invited talk

Jean-Charles THOMAS (Grand Accélérateur National d'Ions Lourds)

24/09/2026 16:35

Fundamental Interactions

13. On the correlation between the isospin-symmetry breaking correction and $E0$-transition strengths in superallowed $0^+\rightarrow0^+$ nuclear $\beta$ decay

Latsamy Xayavong (Yonsei University)

24/09/2026 17:00

Oral Presentation

Fundamental Interactions

We investigate the correlation between the isospin-symmetry breaking correction to superallowed $0^+\rightarrow0^+$ nuclear $\beta$ decay of isotriplets and the $E0$-transition strength between the isobaric analog and the first excited $0^+$ states in the $T_z=1$ nuclei. Specifically, the correction, as obtained within the shell-model approach, is suppressed where the experimental $E0$...

19. Matter's origin from the radioactivity of trapped ions

Luis Miguel Motilla Martinez (University of Jyväskylä / GANIL)

24/09/2026 17:20

Oral Presentation

Fundamental Interactions

Everything we observe in the universe is thanks to interactions of particles and antiparticles, from subatomic processes to the formation of galaxies since the Big Bang. But regardless of where we look, we do not see macroscopic quantities of antimatter in nature, only in quantum interactions or produced by us in laboratories. With our current understanding of physics, when matter originated...

29. Fermi beta decay of $^{10}C$ measured with AGATA: constraints on $V_{ud}$

F. Didierjean

24/09/2026 17:40

Oral Presentation

Fundamental Interactions

The Cabibbo-Kobayashi-Maskawa (CKM) matrix describes the weak charged-current interactions of quarks within the framework of the Standard Model of particle physics. It governs, in particular, $\beta$ decays through coupling with the $W^{\pm}$ bosons. To test its validity, the terms of the CKM matrix must be determined with high precision, and their uncertainties must be well understood. One of...

17. Nuclear moments and mean-squared charge radii of neutron deficient rhodium isotopes measured using collinear laser spectroscopy

Saikumar Chinthakayala (University of Caen / GANIL)

24/09/2026 18:00

Oral Presentation

Fundamental Interactions

The region between the strongly deformed nuclei around the $Z \sim 40$, $N \sim 60$ mass region and the spherical Sn chain represents a rich testing ground for nuclear structure models, probing shell evolution and the interplay between single-particle and collective degrees of freedom, as well as phenomena such as shape coexistence. In this context nuclear magnetic dipole moments are sensitive...

52. Testing the Standard Model with the WISArD experiment

Samuel Lecanuet

24/09/2026 18:20

Oral Presentation

Fundamental Interactions

The WISArD experiment is a high precision measurement of nuclear beta decay observables to test the existence of Physics Beyond the Standard Model in the weak sector. The angular correlation parameter $a_{\beta\nu}$ and the Fierz interference term $b$ in particular, are very sensitive probes to the existence of exotic scalar or tensor currents, which are not included in the standard V-A theory...

87. Invited talk

BEATRIZ FERNANDEZ DOMINGUEZ (USC)

25/09/2026 09:00

Present & Future GANIL Facilities

88. Invited talk

Pauline Ascher (LP2iB)

25/09/2026 09:25

Present & Future GANIL Facilities

96. Invited talk

muriel fallot (Université de Nantes)

25/09/2026 09:50

Present & Future GANIL Facilities

63. The ALTO research platform of IJCLab

Dr Enrique Minaya Ramirez (IJCLab)

25/09/2026 10:15

Oral Presentation

Present & Future GANIL Facilities

A set of platforms is present in the Laboratory of the Physics of the two Infinities Irène Joliot-Curie (IJCLab) at Orsay, offering a large range of techniques with a high level of expertise. They support the scientific axes around the physics of the two infinities and they have a national and international impact in many scientific communities. Radioactive Ion Beams (RIBs) are currently...

97. Poster award

25/09/2026 11:10

Conclusion

98. Thesis award

25/09/2026 11:25

Conclusion

99. Conclusion

Hervé SAVAJOLS (GANIL)

25/09/2026 11:45

Conclusion

64. Fission studies at ISS

Anna Kawecka (Chalmers University of Technology)

Invited Presentation (Only for invited speakers)

FISSION

Nuclear fission is a key process in both nuclear structure studies and astrophysical nucleosynthesis. In particular, fission influences the production of the heaviest nuclei in the rapid neutron-capture (r-) process by limiting the maximum mass that can be reached. However, experimental information on the fission barriers of neutron-rich nuclei remains limited. Measurements of fission...

46. INDRA-FAZIA and nuclear structure data informing neutron star inferences

Gabriele MONTEFUSCO (CNRS - LPC Caen)

Oral Presentation

Heavy-ion collisions and nuclear structure provide complementary constraints on the density dependence of the symmetry energy, which can be propagated to neutron star matter through nuclear metamodels. I will present a Bayesian study combining the INDRA-FAZIA symmetry energy constraint from Ni+Ni collisions with nuclear structure information and implementing it in a recently developed...

85. Invited talk

Heavy ion Collisions

89. Invited talk

Xavier Ledoux (GANIL)

Present & Future GANIL Facilities