The ATLAS Inner Detector is undergoing a significant upgrade in preparation for the demands of the High-Luminosity LHC (HL-LHC) era. The expected increase in proton-proton interactions per bunch crossing from 30 to nearly 200 is demanding a replacement of the current Inner Detector (ID) with the new all-silicon Inner Tracker (ITk), which features higher granularity, extended pseudo-rapidity...
The MORA project [1] aims to measure the D correlation in nuclear beta decay with high precision to look for CP violation, using a transparent Paul trap and laser orientation techniques. It is currently located at JYFL (Finland), using a 23Mg beam provided by the IGISOL facility. MORA will next be moved to the DESIR experimental hall (GANIL, France) to perform decay measurements using both...
There are two common approaches for calculating cross-sections for weak probes: one involves using square-integrable basis functions [1-5], while the other relies on response functions (dynamical polarizabilities) [6]. For multi-open-channel problems, all methods struggle to some extent. Considering these issues, we develop a powerful novel alternative which takes advantage of the randomness...
Recent experimental studies of exotic nuclei have revealed limitations in our understanding of nuclear shell evolution and magicity. We present evidence that a relativistic description of nuclear structure, particularly considering the unique contribution of a spin-0 boson mediator in the nucleon-nucleon interaction, is crucial for explaining the emergence and evolution of magic numbers from...
For decades, scientists have searched for reliable early warning signs of earthquakes[1]. One promising clue lies in radon (Rn), a gas released when uranium decays in the Earth's crust. Studies have shown that radon levels can show variations before an earthquake [2], likely due to stress deep underground causing cracks that allow radon to escape. Carrier gases like CO₂ and CH₄ help transport...
Massive pulsar observations indicate that compact stars' central densities can significantly surpass nuclear saturation densities, which could lead to the formation of exotic matter such as quark matter, meson condensates, and hyperons. One important contender among meson condensates, anti-kaon ($K^-$) condensation, is not well understood in terms of kaon-meson interactions. We refine...
This study introduces an innovative method for characterizing the nuclear equation of state (EOS) through the analysis of central heavy-ion collisions within the Fermi energy range. We examine experimental data from Nickel-Nickel and Xenon-Tin collisions at energies of 32–100 MeV/nucleon, collected using the INDRA 4π array at GANIL. By leveraging Artificial Intelligence (AI) and Machine...
In previous research [1] devoted to the introduction of three-nucleon ($3N$) forces in the theory of few-nucleon systems, we emphasized the need to reconcile the $2N$ and $3N$ interaction operators when calculating the corresponding observables. Refs. [1, 2] inherit this inconsistency, i.e., the so-called Kharkiv $2N$ potential [3] was used together with the Tucson-Melbourne $3N$ potential...
The vibration and rotation modes shed light on collective properties of nuclei. The rotational level patterns in $^{220}$Rn and $^{226}$Ra nuclei have been obtain in a collective quadrupole+octupole approach with microscopic mass tensor and moments of inertia dependent on deformation and pairing degrees of freedom. However, the main objective is to quantitatively confirm the known experimental...
An experimental search for a bound dineutron has been ongoing for decades, presenting the experiments for light and heavier nuclei masses as target nuclei. Our approach to indirectly observe a bound dineutron is based on the theoretical prediction by Migdal [1] and considers not light, but heavier nuclei in nuclear reactions, near which a bound dineutron can be formed in the outgoing channels...
Halo nuclei are exotic nuclear structures found far from stability near the dripline. Unlike stable nuclei, halo nuclei exhibit a large matter radius. This peculiar feature is the result of their strongly clusterised structure. They can be seen as a compact core to which one or two valence neutrons are loosely bound. Due to the quantum tunnel effect, they exhibit a high presence probability at...
We evaluated the response of an 8-module trans-stilbene scintillator array [1] in detecting (n,n) and (n,n’) reactions in neutron scattering experiments. The measurement was performed at the neutron time-of-flight facility (n_TOF) at CERN in Experimental Area 1 (EAR1) [2], based on prior research at EAR2 [3]. The primary focus is to extend these measurements to the elastic and inelastic...
Laser spectroscopy for studying the ground and isomeric state properties of exotic nuclei has established itself as a versatile and powerful tool, with the capabilities of providing access to nuclear model-independent data about charge radii, electromagnetic moments and spins [1]. Part of this achievement is owed to the possibility of having narrow-bandwidth (60 MHz), high power and tunable...
M.Papa(1), L.Acosta(2), G.Cardella(1), E. De Filippo(1), E.Geraci(1),(3) B.Gnoffo(1),(3), C. Guazzoni(4), C.Maiolino(5), N.S.Martorana(1), A.Pagano(1), E.V.Pagano(5), S.Pirrone(1), G.Politi(1,3), L.Quattrocchi(6), F.Risitano(1),(5), F.Rizzo(3),(5),(7), P.Russotto(5), A.Trifiro(1),(6), M.Trimarchi(1),(6), C.Zagami(3),(5),(7)
(1) INFN, Sezione di Catania, Italy
(2) Instituto de Física....
Develops a theoretical framework to study stochastic fluctuations in relativistic heavy-ion collisions, with a focus on their evolution near the QCD critical point. We begin by introducing thermal and critical fluctuations and their impact on the hydrodynamic evolution of the system. The "Hydro+" formulation is explored as a means of incorporating critical fluctuations into hydrodynamic...
Fission is one of the most complex reactions. The mass asymmetry of the fission fragments depends on the shell structure of the fissioning nucleus. It is generally believed that mass-asymmetric fission disappeared due to the annihilation of the shell structure in high excitation energy. Recently, however, fissioning over a wide range of excitation energies has been experimentally observed by...
Using the configuration interaction shell model (CISM), we systematically computed the electric dipole (E1) response of all long-lived sd-shell nuclei [1]. Our results were compared with predictions from the quasiparticle random-phase approximation (QRPA) and available experimental photoabsorption data. Additionally, we investigated the nature of the pygmy dipole resonance (PDR) along the Neon...
The nuclear level density (NLD) represents the number of accessible energy states in a nucleus at a given excitation energy and is vital for modeling nuclear reactions and decay processes. At lower excitation energies, NLD is significantly enhanced by collective effects, rotational and vibrational motions, which are prominent in deformed nuclei. This phenomenon, referred to as collective...
A few years ago, our group has developed anew method for measuring doses in ultra high dose rate charged particle beams, based on multivolume ion chambers - the QUADDRO detector. The measurement, however, did not account for the energy of the particles in the beam and such a measurement was done using radiocheromic films pklaced axially in the beam.
While performimg energy measurements in 10...
The Standard Model (SM) of electroweak interactions has been remarkably successful in describing fundamental particle interactions. However, compelling observational and theoretical indications suggest that it is an incomplete framework, necessitating an extended theoretical formulation. Searches for New Physics (NP) beyond the SM are actively pursued along three primary frontiers: the...
This application serves as an audit tool for sensitive sites using nuclear or radioactive materials. It evaluates their physical protection systems through expert-formulated questionnaires tailored for each organizational category. It provides privileges to users as administrators (experts) or standard users (site managers) and facilitates information exchange between them. The application...
The study of atomic nuclei presents a compelling example of the challenges involved in solving many-body systems. Understanding these complexities reveals one of the most intriguing mysteries of the Universe: the fundamental information of atomic nuclei. The first theoretical models of molecular states and nucleon clustering in atomic nuclei were proposed in the 1930s [1]. In this context, we...
The in-medium nucleon nucleon cross section and the cluster production are key ingredients in transport models for heavy ion collisions. A bayesian analysis aimed at tuning two parameters of the AMD model (coupled to a stastical afterburner) related to these topics has been performed in order to improve the global agreement between data and simulation. Experimental data for the system...
This research is the field-theoretical description of the deuteron breakup by fast electrons, being a prolongation of the studies carried out [1] at the Kharkiv Institute of Physics & Technology. As in our recent works [2,3], key features of the approach proposed embody gauge-independent calculations of the reaction amplitudes, as well as, a fresh look at the construction of the one-nucleon...
Recent Monte Carlo Shell Model (MCSM) calculations made by T. Togashi et. al. [Phys. Rev. Lett. 121, 062501 (2018)] attempt to account for discrepancies observed between measurements and previous theoretical calculations of the reduced transition probability B(E2;$2^{+}_{1} \rightarrow 0^{+}_{1}$) in the neutron deficient Sn isotopes. One of the predictions of the MCSM calculation is that a...
V. Marchand$^{1}$, W. Dong$^{1}$, S. Franchoo$^{1}$, T. Hourat$^{1}$, David Lunney$^{1}$, V. Manea$^{1}$, E. Minaya Ramirez$^{1}$, E. Morin$^{1}$, S. Roset$^{1}$.
$^{1}$Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
The GANIL accelerator complex in Caen, France recently commissioned a new superconducting linear accelerator as part of the SPIRAL2 facility. This...
Asymmetric fission in mass pre-actinide region is a topic of current interest in fission studies. The important observation in this mass region is the asymmetric fission of neutron deficient nuclei. Andreyev et al. [1] have reported asymmetric fission fragment mass distribution in the β delayed fission of 180 Hg nucleus about a decade ago. The observed asymmetric mass distribution has been...
The synthesis of superheavy nuclei (SHN) with heavy ion collisions is modelled as a three staged model: capture, formation and survival, where this presentation explores the first two stages. Starting from the model in [1], the memoryless Brownian random walk was replaced by a Markov chain approach yielding significantly faster calculations which was then used to determine the cross...
Over the last five years, generative machine learning has proven to be incredibly powerful in various domains: communications, image processing, graph analysis… The question now is: how can it help improve the microscopic description of complex physical phenomena, such as nuclear fission? In fact, there is currently no theoretical model capable of predicting fission half-lives, yields and...
Neutron-rich nuclei close to the r-process path and waiting-point nuclei give extremely essential information about intrinsic nuclear properties vital both for nuclear physics and for astrophysics. They reveal how structure effects are of importance for theoretical modeling and can be crucial to understanding deviations of microscopic-macroscopic self-consistent models treating both neutron...
The hexadecapole deformation, as well as the quadrupole one, influences the low-lying states of finite nuclei. The hexadecapole correlations are often overshadowed by the large quadrupole effects, and hence have not been much investigated. We have investigated hexadecapole ($Q_4$) deformed configurations in microscopic calculations involving the deformed Hartree-Fock theory [1]. $K=0$...
In this talk, a new open-source solver for the nuclear Hartree-Fock-Bogoliubov (HFB) equations will be presented. This solver uses a double set of HO solutions as its basis, allowing an accurate description of highly elongated nuclear states using a relatively small number of basis states. The implemented nucleon-nucleon effective interactions are of D1x, D2x Gogny types. The solver is written...
The extraordinary densities achieved in the cores of neutron stars make them ideal astrophysical laboratories for investigating hypernuclear matter. Recent multi-messenger observations impose stringent constraints on the neutron star equation of state (EoS), allowing for quantitative tests of models that incorporate exotic components such as hyperons. For example, precise measurements of...
One of goals of hypernuclear physics is to obtain information on baryon-baryon interaction in a unified way. Especially, it becomes an important issue to obtain information on hyperon(Y)-nucleon(N) interaction. For this purpose, hyperon-nucleon scattering experiments are planned at JLab and J-PARC facilities [1].
The physics of strangeness $S=-1$ hypernuclei bears a fundamental difference...
This study investigates the influence of $\alpha$-cluster structures in relativistic light nuclear collisions. Using a cluster framework, the characteristics of the nucleonic configurations of $^{16}$ O and $^{20}$ Ne are extracted as predicted by various \textit{ab initio} models, including Nuclear Lattice Effective Field Theory (NLEFT), Variational Monte Carlo (VMC), and the Projected...
Being motivated mainly by the LHC physics, the currently used Monte Carlo Event Generators (MCEGs) lack of the quark spin degree of freedom in their hadronization models. In the recent years, however, the importance of quark spin related effects in hadronization such as the Collins effect has been brought to light by a vivid theoretical and experimental activity. Remarkably, global analyses of...
Abstract
Pairing correlations are an essential feature in the understanding of nuclear structure. Recently, renewed interest in the study of these correlations occurred [1-2] due to the development of the radioactive beam facilities that made the experimental study of medium mass nuclei such as N≈ Z possible.
In the isospin formalism, the pairing effect can exist in the isovector case (T=1)...
The investigation of nuclei near the proton shell closure at (Z = 82) remains a vibrant field of research, as these nuclei exhibit a rich interplay of shapes driven by shape coexistence, and proton-neutron interactions. In the (A $\sim$ 190) mass region, odd-odd thallium (Tl) isotopes serve as an exemplary testing ground where both symmetric oblate and triaxial configurations have been...
Recently several exclusive breakup studies have been reported with stable weakly bound $\alpha$ cluster nuclei like $^{6,7}$Li and $^9$Be ($E_{th}$$<$ 2.5 MeV). A number of interesting observations and features related to breakup of projectile/ejectile in the vicinity of target nucleus have been revealed. There are very few exclusive charged particle coincidence studies performed for the...
Complete isotopic fission-fragment distributions of 240Pu have been measured, for the first time, as a function of the initial excitation energy. The 240Pu fissioning system was produced through the two-proton transfer reaction between a 238U beam and a 12C target, a surrogate reaction for the neutron-induced fission 239Pu(n,f).
The reaction was measured in inverse kinematics, allowing the...
Motivated by the doubly magic nature of the system $^{16}$O + $^{48}$Ca, we have measured [1] its fusion excitation function from above to far below the barrier at the Laboratori Nationali di Legnaro of INFN. We have used the $^{16}$O beams from the XTU Tandem accelerator. The fusion cross sections were measured down to a few μb by identifying the evaporation residues in a detector telescope,...
The Standard Model (SM) of electroweak interactions relies on key assumptions, such as the vector and axial-vector nature of the weak force, parity violation, and the masslessness of neutrinos, which were initially inferred from neutron beta decay. Nowadays, precision experiments with slow neutrons are involved in searches of physics beyond SM (BSM). The BRAND experiment is one of them. It...
In the light odd-mass $^{65-69}$Ga isotopes ($Z = 31$), the excited states have several bands arising from the weak coupling of a quasi-particle occupying the $\pi f_{5/2}$, $\pi p_{3/2}$, and $\pi g_{9/2}$ orbitals [1]. In the present study, the excited states of $^{67}$Ga were populated via $^{56,57}$Fe($^{13}$C, p2n$\gamma$/pn$\gamma$) fusion-evaporation reaction at 45 MeV beam energy. The...
The General Purpose Ion Buncher (GPIB) is a gas-filled radiofrequency-quadrupole that will be instaled at the entrance of the DESIR experimental hall currently under construction at GANIL. The GPIB will both cool the beams coming from the SPIRAL1 and S3 facilities and bunch them if needed by the experiments further downstream.
All the beams being delivered to the DESIR hall going through the...
The study of nuclear reactions involving light nuclei at low incident energies is essential for the development and corroboration of different theories and models applied to astrophysical environments [1,2]. The experimental Basic Nuclear Physics (FNB) line, installed at the 3 MV tandem accelerator of the National Accelerators Center (CNA), is being adapted and prepared to study these kinds of...
Exploring the nuclear structure properties of nuclei at the extremes of proton stability, is a quite challenging procedure, since these nuclei cannot be used in direct experiments due to their very unstable nature. An indirect way to probe them, might be required.
From their production in fusion evaporation and multi fragmentation reactions, according to the mass region that is probed, one...
Plasma-assisted CO$_2$ dissociation has been widely studied for in-situ resource utilization (ISRU) on Mars, where it is used to generate oxygen and fuel from the Martian CO$_2$-rich atmosphere. On Earth, the process has been explored for carbon capture and utilization, where CO$_2$ is utilized to produce valuable fuels and chemicals. Its application to space propulsion, however, is nearly...
The nuclei with few valence protons above Z=50 major shell closure, disclose a diverse structural phenomena, which are worth exploring. In these nuclei of A~120-130 region, the valence neutrons mainly promote the collectivity, whereas, the valence protons dominates the single particle structures in the nuclear structures. The available orbitals for both the protons and neutrons are, viz.,...
Ensembles of He and H isotopes can be studied with unique completeness and resolution in nuclear emulsion layers longitudinally exposed to relativistic nuclei [1,2]. Determination of the invariant mass of their pairs or triplets by emission angles in the velocity conservation approximation is sufficient to identify a number of unstable states – $^8$Be(0$^+$), $^8$Be(2$^+$), $^9$B,...
The Tile Calorimeter (TileCal) is a central hadronic calorimeter of the ATLAS experiment at the LHC. The TileCal plays an important role in the reconstruction of jets, hadronically decaying tau leptons, missing transverse energy, in the muon identification and provides information to the dedicated calorimeter trigger. This sampling calorimeter is composed by the plastic scintillating tiles and...
We report on the pre-neutron mass yields of actinides near $^{232}$Th measured in inverse kinematics at the VAMOS++ spectrometer and its newly developed second arm. The experiment used a $^{232}$Th beam accelerated for the first time at GANIL, impinging on a carbon target (100 $\mu g\cdot cm^{-2}$) inducing fission of a few actinides from multi-nucleon transfer. The VAMOS++ spectrometer allows...
The isotope $^{229}$Th is of particular interest due to its exceptionally low-energy isomeric state ($\sim$ 8.2 eV), which can be studied via vacuum ultraviolet (VUV) spectroscopy, and holds great potential for the development of a nuclear clock [1,2].
Understanding this isomer’s properties, including its excitation and decay modes, is hereby essential and involves investigating the nuclear...
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...
The high momentum transfer encountered in heavy ion Double Charge Exchange (DCE) reactions provides an ideal environment for studying correlation phenomena beyond mean-field in Nuclear Matrix Elements (NMEs). This investigation is of paramount interest for probing the nuclear counterpart of the elusive neutrinoless double beta (0νββ) decay. Currently, the NMEs for such a decay are embedded in...
The properties of the nuclei at finite temperature are an active research topic in nuclear physics, particularly for understanding their structure, collective excitations and statistical behavior under extreme conditions (Cf. for example [1-3]) . Facilities such as Alto (Orsay, France), HIE-ISOLDE (CERN) and FRIB (USA) enable the study of hot nuclei through fission reactions and heavy-ion...
Proton-induced fission of $^{232}$Th and $^{238}$U at tens-of-MeV energies has been studied. This type of reactions is commonly used in the isotope separation on-line (ISOL) technique, which provides high-quality and intense rare isotope (RI) beams. This work aims to estimate RI beam yields for application at RAON, Korea's heavy-ion accelerator. A stochastic model based on the Langevin...
The $^{58}$Ni+$^{58}$Ni reaction was measured using the INDRA-FAZIA apparatus at three different energies: 32, 52, and 74 AMeV. In peripheral and semi-peripheral collisions, two main distinct reaction channels, one associated with the QP remnant and the other with the QP breakup channel, were identified. The analysis was conducted as a function of incident energy and collision centrality. In...
We employ the Continuum Discretized Coupled Channels (CDCC) method to investigate the breakup and total fusion cross sections for the weakly bound nuclei 6Li and 7Li on a 209Bi target at energies below, around and above the Coulomb barrier. Our analysis reveals that the inclusion of projectile resonances enhances breakup cross sections while suppressing fusion cross sections. These resonances...
The Bohr-Hamiltonian (BH) method [1,2], based on microscopic Hartree-Fock-Bogoliubov calculations, is the tool of choice to perform systematic calculations of the properties of low-energy states along the nuclear chart with a good degree of accuracy [3].
A first systematic study [4] shows that, despite the cranking approximation used to calculate the mass parameters, the BH is able to...
SEASON (Spectroscopy of Electron and Alpha in Silicon bOx couNter) is a decay station developed at CEA-IRFU and currently being commissioned. SEASON is designed to meet the constraints of a high energy-resolution decay station and an efficient counter for laser spectroscopy for the study of heavy and superheavy nuclei. The detection system is made of 7 DSSD (Double-sided Silicon Stripped...
One of the most effective techniques for investigating the mechanism of baryon production is the study of angular correlations between two particles. Angular correlations represent a convolution of various physical processes, such as mini-jets, Bose-Einstein quantum statistics, conservation of momentum, resonances, and other phenomena that contribute to the unique behavior observed for...
The 25Mg nucleus plays a critical role in nucleosynthesis processes, particularly in slow neutron capture process (s-process). The (α,n) reaction on 22Ne producing 25Mg is the main neutron source in massive stars. In addition, 25Mg is the origin of the formation of two other nuclei in stellar environments, the proton capture on 25Mg, forms 26Al and the neutron capture on 25Mg, forms 26Mg. The...
In our previous studies, possible and statistically significant observations of a bound dineutron in nucler reactions with fast neutrons on 159Tb [1] and 197Au [2] nuclei was investigated, that coincides with the Migdal’s and Dyugaev’s [3, 4] predictions about bound dineutron existence. To directly observe the decay of bound dineutrons, the estimation of half-life and the end-point energy for...
In the last decade, the ab-initio self-consistent Gorkov Green’s function (SCGGF) [1,2] approach has marked a step forward in the knowledge of bulk nuclear properties of even-even open-shell nuclei, such as the ones lying along the Ar-Cr isotopic chains [3,4]. The access to the one-particle propagator has allowed the study of ground and excited states of neighbouring odd-A isotopes...
Spontaneous fission is one of the primary decay modes in heavy and superheavy nuclei. A large uncertainty in theoretical estimates of the fission half-life is a well-known, long-standing problem. In the description of the energy density functionals [1,2], the collective inertia along the fission path has been evaluated using the so-called cranking approximation that ignores dynamical residual...
Precision measurements in beta decay play an essential role in the search for new physics beyond the standard model (SM) by probing “exotic” phenomena such as scalar and tensor interactions. The presence of these interactions would lead to deviations in specific observables from their SM predictions. The study of the full beta energy spectrum offers a sensitive mean to probe these exotic...
In the NUMEN experiment [1], one of the most critical points to be addressed is the interaction of high intensity beams with the target with heat development that needs to be dissipated to avoid the fusion of low melting point isotopes. The target must also be thin to avoid degrading the energy resolution of the MAGNEX spectrometer, and its containment system must be limited in material to...
The isovector giant dipole resonance (IVGDR)—a macroscopic oscillation where neutrons and protons move out of phase—serves as a key probe for studying the structure of many-body quantum systems. Generally, the width ($\Gamma_G$) of IVGDR is related to the various damping mechanism of this collective vibration and is an important observable to understand the structural details of excited...
The region surrounding the doubly magic nucleus $^{100}$Sn, particularly on the proton-rich side beyond the (N=50) shell closure, provides a crucial test ground for modern nuclear structure models. It offers access to fundamental phenomena such as isospin symmetry breaking, nucleon pairing, shell evolution, and the influence of the tensor force and Wigner energy [1]. Despite its importance,...
Brunilde Gnoffo a,b, Sara Pirroneb , Giuseppe Politi a,b, Enrico De Filippob , Giuseppe Cardellab , Elena Geraci a,b, Concettina Maiolinoc , Nunzia Simona Martoranab , Emanuele Vincenzo Paganoc , Massimo Papab, Fabio Risitano d,b, Francesca Rizzoa,c,e, Paolo Russottoc , Marina Trimarchid,b, Cristina Zagamia,c,e
A Dipartimento di Fisica e Astronomia ”Ettore Majorana”, Universita...
Pablo González Rusell for the R^{3}B collaboration
The atomic nuclear structure is still one of the most complex problems in modern physics. This is due to the fact that many-body correlations beyond the symmetries of the nucleon-nucleon potential leads to the existence of a large number of nuclear systems whose properties differ significantly from what can be expected based on the simple...
In ultrarelativistic heavy-ion collisions, a hot and dense state of deconfined color-conducting matter, known as Quark-Gluon Plasma, is produced at extremely high temperature and density. This state allows the exploration of Quantum Chromodynamics properties. In particular, Heavy quarks are primarily produced in the initial hard scattering and traverse the QGP throughout its evolution. As a...
Collisions of heavy-ions at relativistic energies provide an essential tool to study the behavior of strongly interacting matter at elevated temperature and density.
In the regime of few GeV per nucleon, quark deconfinement does not occur, but a non-trivial dynamics of the system is driven by moderate temperatures (few tens MeV) and baryon densities (2-3 nuclear saturation density), which...
In the neutron-proton interacting boson model (IBM-2) [1], the SU*(3) limit appears, which has a triaxial nature. It was first clarified by A.E.L. Dieperink and R. Bijker [2] with group theory and with coherent state analysis. This triaxiality has been also suggested from the correspondence between shape variables ($\beta, \gamma$) and SU(3) irrep label ($\lambda, \mu$) by Ref. [3]. Moreover,...
The future Electron Ion Collider (EIC) will offer a unique opportunity to explore the parton distributions
inside nucleons and nuclei thanks to an unprecedented luminosity, a wide range of energies, a large choice of nuclei
and polarization of both beams.
The electron Proton-Ion Collider collaboration (ePIC) detector will be capable of precise determination
of the position of primary...
The idea of the capability of nuclei to emit two alpha particles simultaneously dates back to the late 1970s, inspired by the concept of two-proton radioactivity. Subsequently, observation of the exotic decay was considered unfeasible due to the extremely low branching ratio, which was calculated to be on the order of $10^{-20}$ or less. Recent theoretical work by Mercier et al. (PRL...
The multi-configurational dynamical symmetry (MUSY) serves as a unifying framework that links the fundamental structure models of atomic nuclei: the shell, collective, and cluster models [1, 2]. It constitutes a composite symmetry where each configuration possesses a usual [U(3)] dynamical symmetry and an additional symmetry that connects these configurations among themselves. As a consequence...
Scandium (Sc) and Terbium (Tb) have gained significant interest in nuclear medicine due to their radioactive isotopes being suitable for cancer diagnostics and therapy, offering a promising avenue for theranostics. However, challenges persist in achieving high molar activity and radiochemical purity for medical applications. The physical isotope mass separation technique presents an interest...
A neutron capture by a nucleus results in a compound nucleus that quickly desexcites while emitting γ-rays if its excitation energy is less than a few MeV. This process, known as a radiative capture, occurs in many stellar nucleosynthesis. The reaction cross sections can be measured precisely for stable nuclei or nuclei close to the valley of stability but this becomes challenging for more...
The spectroscopic quadrupole moment ($Q$) is a fundamental property that provides information about nuclear deformation. However, its precise extraction for the transition elements remains challenging due to their complex atomic structures. Meanwhile, muonic atoms offer a simpler hydrogen-like structure with amplified hyperfine interaction effects. Recent efforts have revived this technique,...
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 ν($d_{3/2}$) orbital...
