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Ecole Thématique PhyNuBE : Première rencontre de Physique Nucléaire de Basse Energie 2021

5–10 déc. 2021
Fuseau horaire Europe/Paris

Liste des Contributions

62 / 62
1. Breaking of mirror symmetries, 2p clusters in the Ikeda conjecture and possible astrophysical implications
Francois De Oliviera (GANIL, France)
06/12/2021 09:00
3. Alpha clustering and quasi-molecular states at thresholds
Jean Paul Ebran (CEA-DAM, France)
06/12/2021 09:45
2. Study of alpha clusters in KO experiments
Didier Beaumel (IJCLab, France)
06/12/2021 10:30
34. Weak interaction studies with 32Ar
Federica Cresto (CENBG, France)
06/12/2021 11:45
35. Continuum coupling correction in Gamow Shell Model
Jose Pablo LINARES FERNANDEZ (GANIL, France)
06/12/2021 12:10
4. Communication Workshop
Raphael Chevrier (Arianespace, France)
06/12/2021 15:00

The objective of this workshop goes beyond my thesis in 180 sec!
It will provide the most important skills that are imperative when presenting your work as a young scientist.
In other words, the tips that can help you succeed.
55. Communication Workshop
Raphael Chevrier
06/12/2021 17:00

The objective of this workshop goes beyond my thesis in 180 sec!
It will provide the most important skills that are imperative when presenting your work as a young scientist.
In other words, the tips that can help you succeed.
5. Pairing in nuclei: some experimental aspects
Gilles De France (GANIL, France)
07/12/2021 09:00
6. Electromagnetic transitions, lifetime measurements and the Plunger technique
Joa Ljungvall (IJCLab, France)
07/12/2021 09:45
44. Nuclear structure studies at the FIPPS instrument at ILL
Giacomo Colombi (ILL, France)
07/12/2021 10:30
62. Dynamical aspects of superfluid neutron stars
Marco Antonelli (LPC Caen, France)
07/12/2021 11:30
50. Universality in many-body systems
Lorenzo Contessi (IJCLab/CEA, France)
07/12/2021 12:05
15. Skills workshop
Philippe Gauron (IJCLab, France)
07/12/2021 14:30

Embarking on a PhD provides many opportunities for personal and professional development beyond scientific research!
This workshop aims to provide guidance and tips on harnessing these resources to build a well-rounded CV and increase your chances of getting hired after your PhD for example.
54. Skills workshop
Philippe Gauron (IJCLab Orasy)
07/12/2021 16:00
42. Shapes of heavy and super-heavy atomic nuclei with Skyrme Energy Density Functionals
Philippe Da Costa (IP2I, France)
07/12/2021 17:00
43. Description of heavy nuclei within the Shell Model
Duy Duc Dao (IPHC, France)
07/12/2021 17:25
57. Shape evolution in neutron-rich nuclei around mass 100 with the AGATA-VAMOS-OUPS setup
Giorgia Pasqualato (IJCLab, France)
07/12/2021 17:50
60. The double Penning trap mass spectrometer PIPERADE for DESIR/SPIRAL2
Antoine de Roubin (CENBG, France)
07/12/2021 18:15
8. Introduction to theory and related challenges
Alexandre Tichai (IKP Darmstadt, Germany)
08/12/2021 09:00
48. Bogoliubov coupled cluster theory for open-shell nuclei
Pepijn Demol (KU Leuven, Belgium)
08/12/2021 10:00
49. ab-initio description of the monopole resonance in light- and medium-mass nuclei
Andrea Porro (CEA-IRFU, France)
08/12/2021 10:25
51. Nuclear Shell Model Effective Interaction from Many-Body Perturbation Theory
Zhen Li (CENBG, France)
08/12/2021 10:50
45. Determining neutron-induced reaction cross sections through surrogate reactions at storage rings
Jacobus Swartz (CENBG, France)
08/12/2021 18:00
46. Response of solar cells to heavy ions at energies close to 10 AMeV
Michele Sguazzin (CENBG, France)
08/12/2021 18:25
47. First trap-assisted decay spectroscopy of the 81Ge ground state
Clément Delafosse (IJCLab, France)
08/12/2021 18:50
10. Nuclear and astrophysics aspects of the r-process nucleosynthesis
Stephane Goriely (IAA-ULB, Belgium)
09/12/2021 09:00
11. Neutron stars observation
Sebastien Guillot (IRAP Toulouse, France)
09/12/2021 10:30
36. The effect of the energy functional on the pasta-phase properties of catalysed neutron stars
Hoa Dinh Thi (LPC Caen, France)
09/12/2021 11:45
41. Can we decipher the composition of the core of a neutron star?
Chiranjib Mondal (LPC Caen, France)
09/12/2021 12:10
53. Parallel Computing
Fabrice Roy (LUTH - CNRS - Observatoire de Paris), Vincent Lafage (IJCLab, France)
09/12/2021 14:30
56. Paralell computing
09/12/2021 16:30
39. Gamma Spectroscopy in a Laser-perturbed Environment
Emmanuel ATUKPOR (CENBG, France)
09/12/2021 18:00
40. Understand 22Na cosmic abundance by measuring lifetimes in 23Mg
Chloe Fougeres (GANIL, France)
09/12/2021 18:25
37. Experimental Study of the 30Si(p,γ)31P via the 30Si( 3He,d)31P transfer reaction for understanding elemental anomalies in Globular Clusters
Djamila Sarah Harrouz (IJCLab, France)
09/12/2021 18:50
61. Trajectory-based approach to quantum scattering process
Lucien Dupuy (Montpellier, France)
09/12/2021 19:15
13. Good computing practices for physicists and PhD students
Vincent Lafage (IJCLab, France)
10/12/2021 09:00
21. Ab-initio description of the monopole resonance in light- and medium-mass nuclei
Andrea Porro (CEA IRFU)

Giant monopole resonances have a long-standing theoretical importance in nuclear structure. The interest resides notably in the so-called breathing mode that has been established as a standard observable to constrain the nuclear incompressibility. The Random Phase Approximation (RPA) within the frame of phenomenological Energy Density Functionals (EDF) has become the standard tool to address...
18. Bogoliubov coupled cluster theory for open-shell nuclei
Pepijn Demol

The objective of the so-called ab initio approach to nuclear structure is to provide an accurate and universal description of nuclear systems from first principles [1]. In this context, solving the many-body Schrödinger equation requires systematically improvable many-body methods. Over the past 20 years, the development of novel expansion methods displaying a mild computational scaling with...
27. Can we decipher the composition of the core of a neutron star?
Chiranjib Mondal (LPC Caen)

Recent development in multi-messenger astronomy through gravitational waves (LIGO/VIRGO)
or X-ray spectra (NICER) provide new constraints to the theories of nuclear physics, where
an absolute energy density functional from ab-initio modelling is still not available.
General relativity guarantees that there is a unique one-to-one correspondence between static
observables of neutron stars...
24. Continuum coupling correction in Gamow Shell Model
Jose Pablo Linares Fernandez (GANIL)

Loosely bound nuclei are currently at the center of interest in nuclear physics in problems related to the limits of stability of nuclear matter and nucleosynthesis. Since nuclear properties are profoundly affected by environment of the many-body continuum representing scattering and decay channels, a simultaneous understanding of the structural and reaction aspects is crucial for...
20. Description of heavy nuclei within the Shell Model
Dr Duy Duc Dao (IPHC-Strasbourg)

The great challenge in the Shell Model framework is the diagonalization of the effective (generally two-body) Hamiltonian in the model space. Indeed, this is a huge task for open shell nuclei as the model space dimension grows combinatorially with the number of particles. I will present our recent development which allows to expand the applicability of the Shell Model into heavy nuclei by...
23. Determining neutron-induced reaction cross sections through surrogate reactions at storage rings
Jacobus Swartz (Centre d'Etudes Nucleaires de Bordeaux Gradignan)

Investigating the interactions of neutrons with unstable nuclei is crucial to our understanding of nuclear astrophysics as it sheds light on the stellar nucleosynthesis of heavy elements. Obtaining accurate cross section data for neutron-induced reactions on these nuclei presents major experimental challenges since both beam and target are radioactive. The NECTAR (NuclEar reaCTions At storage...
7. Dynamical aspects of superfluid neutron stars
Marco Antonelli (LPC Caen, France)
29. Experimental Study of the 30Si(p,γ)31P via the 30Si( 3He,d)31P transfer reaction for understanding elemental anomalies in Globular Clusters.
Djamila Sarah Harrouz (IJCLab)

Globular clusters are key grounds for models of stellar evolution and early stages of the formation of galaxies. Abundance anomalies observed in the globular cluster NGC 2419, such as the enhancement of potassium and depletion of magnesium can be explained in terms of an earlier generation of stars polluting the presently observed stars. However, the nature and the properties of the polluting...
30. First trap-assisted decay spectroscopy of the $^{81}$Ge ground state
Dr Clément DELAFOSSE (IJCLab)

The $^{78}$Ni ($Z=28$, $N=50$) region has been one of the main focus points in nuclear structure studies during the last decades. The recently measured $2^+_1$ excitation energy of $^{78}$Ni $E_x(2^+_1)=2.6$ MeV has been interpreted as the proof of its doubly magic nature. Despite this remarkable result, the nuclear structure in the region is far from fully understood. Shape coexistence...
38. First trap-assisted decay spectroscopy of the 81Ge ground state
Clement Delafosse (IJCLab, France)
31. Gamma Spectroscopy in a Laser-perturbed Environment
Emmanuel Atukpor (CENBG)

When high power lasers interact with matter, ions, electrons and their associated
bremsstrahlung photons are the products. The protons can reach hundreds of MeVs and
intensities of some kA within a few ns. Such high-intensity opens up new realms of nuclear
physics like the study of shot-lived nuclei states in a plasma by gamma spectroscopy [1].
It is common to...
22. Nuclear Shell Model Effective Interactions from Many-Body Perturbation Theory
M. Zhen Li (Centre d'Etudes Nucléaires de Bordeaux-Gradignan)

The interacting shell model is a modern many-body method used in nuclear structure calculations. The basic idea of the model is that the eigenproblem for a microscopic Hamiltonian is solved by diagonalization of the Hamiltonian matrix in a spherically-symmetric many-body basis (for example, a harmonic oscillator basis). The basis dimension grows very rapidly with increasing atomic number A....
19. Nuclear structure studies at the FIPPS instrument at ILL
Giacomo Colombi

The FIssion Product Prompt gamma-ray spectrometer (FIPPS) is the new nuclear physics instrument at the Institut Laue-Langevin (ILL). FIPPS takes advantage of an intense pencil-like neutron beam (flux $10^{8}$ n/s/cm$^{2}$) for inducing neutron capture and neutron induced fission reactions and study the nuclear structure via high resolution gamma-ray spectroscopy. The array is composed by 8...
12. Parallel Computing
Fabrice Roy (IAS, Meudon), Vincent Lafage (IJCLab, Orsay)
14. PhD student and post-doc contributions: Please submit your abstract!
25. Response of solar cells to heavy ions at energies close to 10 AMeV
Michele Sguazzin (CNRS)

Solar cells have been used for several decades to detect fission fragments up to 1 AMeV. In this energy range, they provide an energy resolution of 1-2%, a time resolution of a few ns and better radiation hardness than Si detectors. All these properties, together with their low cost and low sensitivity to light particles, make solar cells an appealing alternative to silicon detectors for the...
58. Shape evolution in neutron-rich nuclei around mass 100 with the AGATA-VAMOS-OUPS setup
Giorgia Pasqualato (IJCLab)

Tuesday session
26. Shapes of heavy and super-heavy atomic nuclei with Skyrme Energy Density Functionals
Philippe Da costa

The mean-field, or Energy Density Functional (EDF), methods allow for the study of energies and
shapes of all nuclei, but the lightest ones, throughout the mass-table. These approach and their
extensions such as the Random Phase Approximation (RPA) and Generator Coordinate Method (GCM)
give access to observables from ground state, excited states and large-amplitude collective motion of...
9. Short contributions of PhD students and postdocs
Lorenzo Contessi, Mario Sanchez, Raphael Lasseri
52. Taming Nuclear complexity with neural networks
Raphaël-David Lasseri (IJClab, France)
33. The double Penning trap mass spectrometer PIERADE for DESIR/SPIRAL2
Antoine de Roubin (CENBG)

The DESIR (Désintégration, Excitation et Stockage d’Ions Radioactifs) hall is a part of the new extension of GANIL; the SPIRAL2 facility. This hall will be dedicated to the study of nuclear structure, astrophysics and weak interaction with low energy beams (30-60 keV). With the low-energy comes the advantage of working with good optical quality ion beams, allowing high-precision experiments....
16. The effect of the energy functional on the pasta-phase properties of catalysed neutron stars
Hoa Dinh Thi (LPC Caen)

Nuclear pasta, that is, an inhomogeneous distribution of nuclear matter characterised by non-spherical clustered structures, is expected to occur in a narrow spatial region at the bottom of the inner crust of neutron stars, but the width of the pasta layer is strongly model-dependent. In the framework of a compressible liquid-drop model, we use Bayesian inference to analyze the constraints on...
17. Understand 22Na cosmic abundance by measuring lifetimes in 23Mg*
Mlle Chloé Fougères (GANIL CEA/DRF - CNRS/IN2P3)

Simulations of novae explosive nucleosynthesis predict the production of the radionuclide $^{22}$Na. Its half life of 2.6 yr makes it a very interesting astronomical observable by allowing space and time correlations with the astrophysical object. This radionuclide should bring constraints on nova models. It may also help to explain abnormal $^{22}$Ne abundance observed in presolar grains and...
28. Universality in many-body systems
Lorenzo Contessi (CEA)

Systems that share common proprieties as critical exponents and the number and nature of quantum states are said to belong to the same universality class. However, systems in the same class may have very different typical sizes and energies. For example, some nuclear systems, cold atoms, and hadronic molecules can all be described by the same typology of theories. This allows transferring...
59. Universality in many-body systems
Lorenzo Contessi (IJCLab, France)
32. Weak interaction studies with 32Ar
Federica Cresto

Nuclear beta decay has represented for more than half a century a blooming testing ground for the Standard Model (SM), contributing particularly to the development of the theory of the electroweak interaction. The broad variety of nuclear states and beta transitions provide a highly remarkable tool to be competitive with high-energy physics experiments in searching for the possible presence of...
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