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8/17/26, 8:45 AM
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Dr Michael Higgins (University of Massachusetts Boston)
We present previous work in atomic and nuclear physics, with a focus on five-body recombination of identical bosons and on bound and resonant states in helium isotopes within the framework of the adiabatic hyperspherical representation. We review studies of the few-body helium systems $^4$He+2n, $^4$He+3n, and $^4$He+4n, where calculations are performed to characterize bound states,...
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Prof. Yubing Dong (Institute of High Energy Physics, Chinese Academy of Sciences, CHina)Hadron physicsPoster
In this work, a systematical study of the electromagnetic (EM) and gravitational form factors of nucleon and $\Delta$ isobars are given. The calculations is based on the quark-diquark approach$^{1,2}$ and In particular, the pion meson cloud effect is taken into account$^{3}$. Our results show the important effect of the cloud effect on a interpretation of the EM form factors and the...
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Petr Navratil
First-principles (or ab initio) methods that solve the quantum many-nucleon problem with controlled approximations based on validated chiral nucleon-nucleon and three-nucleon forces are currently the best path to achieving a predictive theory of nuclear structure, low-energy scattering and reactions between nuclei. Among them, the ab initio no-core shell model with continuum (NCSMC) [1,2],...
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Mario GattobigioExotic statesContributed
I present a unified description of alpha-cluster nuclei rooted in the theory
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of shallow two-body states and its connection to Efimov universality. The
starting point is the observation that the space of two-body potentials
admits a one-dimensional attractor under renormalization-group flow: all
interactions sharing the same low-energy parameters flow, in the regime
$r_e/a... -
Stefan Eriksson (Swansea University (UK))
The comparison of bound-state energy spectra of hydrogen and antihydrogen constitutes a stringent test of fundamental symmetry such as Lorentz and CPT invariance [1]. The availability of excitable transitions in combination with frequency metrology can be harnessed for precision measurements of energy intervals in both matter and antimatter species. The precisely determined energy spectra and...
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Jambul Gegelia (Ruhr University Bochum)Hadron physicsContributed
Symmetry-preserving higher-derivative formulation of non-relativistic baryon chiral effective field theory, leading to improved ultraviolet behavior, will be briefly discussed. Application to the nucleon-nucleon scattering problem at next-to-leading order will be presented. Generalization for processes involving more nucleons will be touched upon.
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Matteo Vorabbi (University of Surrey)
The optical potential is a well-known and successful tool that is widely used to describe nucleon-nucleus scattering processes. Within this approach it is possible to compute the scattering observables for elastic processes across wide regions of the nuclear landscape and extend its usage to inelastic scattering and other types of reactions. A phenomenological approach is usually preferred to...
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Anjan Sadhukhan (Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu, 300, Taiwan)
A conceptually distinct, technically straightforward and pedagogically transparent route to the elimination of angular dependence from the non-relativistic three-body Schrodinger equation (SE) is presented. This leads us to the reduced Schrodinger equation (RSE)---a matrix-operator formulation that fully retains the generality of arbitrary particle masses, charges, total angular momentum...
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Sebastian Koenig
Simulating quantum systems in a finite volume is a powerful theoretical tool for extracting information about them. The observation that the real-world properties of states are encoded in how their discrete energy levels change with the size of the volume gives rise to a versatile formalism that is relevant not only for nuclear physics, but also for other fields such as simulations of cold...
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Dr Pavel Belov (University of Rostock)Atoms and moleculesContributed
Bound states in the continuum (BICs) [1] are remarkable quantum states characterized by the absence of linewidth broadenings, and therefore exhibiting giant nonradiative lifetimes. The existence of bound states embedded in the continuum was first suggested by von Neumann and Wigner in the context of an open quantum system formed by a rapidly oscillating potential [2]. One century later, BICs...
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Pavel BelovFew-body aspects of many-body systemsPoster
Trions, or so-called charged excitons, are bound states of three-body Coulomb systems in semiconductors [1]. These electron-hole complexes consist of either two holes and one electron ($X^{+}$ trion) or two electrons and one hole ($X^{-}$ trion). In this work, we compare different approaches to calculate the energy levels of trions in bulk crystals for a broad range of electron-hole mass...
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Evgeny Epelbaum (Ruhr University Bochum)
Femtoscopic measurements from heavy-ion collisions have become a popular tool to investigate the strong interactions between hadrons. Analysis of femtoscopy data relies on the Koonin-Pratt formula, which relates the measured correlation functions with the relative wave function of an outgoing hadron pair and a source term that is assumed to be universal across interaction models. I will...
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Dr Hermann Krebs (Ruhr-Universität Bochum)
Chiral effective field theory is a well-known tool for the description of nuclear physics in the low-energy sector. Far below the pion production threshold, one can use the Goldstone-boson nature of the exchanged pions to obtain the most general expansion of the nuclear forces in powers of low momenta, divided by a breakdown scale of the theory of order 600 MeV. In the last three decades,...
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Yan Kostylenko (Akhiezer Institute for theoretical physics, National Science Center "Kharkiv Institute of Physics and Technology", Kharkiv, Ukraine)Nuclei and nuclear reactionsPoster
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. Such an inconsistency is inherited in Refs. [1,2], i.e., the Kharkiv $2N$ potential [3] is used together with the Tucson-Melbourne $3N$ potential [4]....
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Tomona Kinugawa (RIKEN Nishina Center)Hadron physicsContributed
Near-threshold states have attracted considerable attention in hadron physics, because many exotic hadron candidates are observed near scattering thresholds and are expected to have cluster structures such as hadronic molecules. To investigate their internal structure, we focus on the compositeness, defined as a quantitative measure of the cluster component in the wavefunction [1]. For systems...
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Prof. Zohar Amitay (Technion-Israel Institute of Technology, Haifa, Israel)Atoms and moleculesPoster
Coherent control of ultrafast molecule making from a pair of colliding reactants is of fundamental interest both in its own right and as a crucial component of coherent control of binary photoreactions. Realizing such control will also enable a novel type of photochemistry. To handle diverse excitation scenarios, feasibility with both weak and strong fields is essential. Previously, we have...
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Gerald FeldmanHadron physicsContributed
The High Intensity Gamma-Ray Source (HIGS) at Duke University delivers monoenergetic photon beams with high linear or circular polarization by backscattering of free-electron laser (FEL) photons [1]. To exploit the unique capabilities of this facility, we have been performing a series of Compton scattering experiments on light nuclei aimed at determining the nucleon electromagnetic...
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Dr Shalva Tsiklauri (The City University of the New York-BMCC)Atoms and moleculesContributed
We investigate the properties of two-dimensional trions in buckled Xene monolayers (silicene, germanene, and stanene) subjected to perpendicular magnetic and electric fields. Within a nonrelativistic effective-mass framework, the three-body Hamiltonian is formulated using the Rytova–Keldysh interaction potential appropriate for screened two-dimensional systems. Employing mass-scaled Jacobi...
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Ilya Fabrikant (University of Nebraska-Lincoln)Atoms and moleculesContributed
Low-energy collisions involving electrons, positrons, positronium (Ps) and atomic hydrogen can be strongly affected by laser fields of a moderate intensity. The Coulomb focusing effect in collisions between two charged particles is due to wiggling motion of electron in a laser field, and has been shown to strongly affect the processes of bremsstrahlung, radiative recombination in electron...
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Tanner Massimino (California State University, Long Beach)Exotic statesContributed
The $K^{-}pp$, a three-body system combining Coulomb and strong interactions, poses experimental and theoretical challenges. The theoretical problem is that these interactions operate on vastly different length scales, and the $K^{-}p$ Coulomb interaction supports infinitely many bound states.
We studied the $K^- pp$ system with both interactions being active and found that this combined...
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81. Coupled-channels method for the scattering hypervolume in ultracold atomic three-body collisionsPim Kersbergen1Atoms and moleculesContributed
We introduce a novel coupled‑channels method for elastic three‑body scattering in systems of identical bosonic alkali‑metal atoms. The approach relies on the numerically exact two‑body off‑the‑energy‑shell transition matrix, constructed from realistic multichannel molecular interaction potentials that support many bound states. By rigorously accounting for this off‑shell structure, the method...
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Sachiko Takeuchi (RCNP, University of Osaka)Exotic statesContributed
The LHCb, ATLAS, and CMS collaborations have reported peaks in the final $J/\psi$-$J/\psi$ invariant mass spectra [1-3]. The peaks are reported to be 2++ [4].
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We investigated scattering states of two heavy mesons, such as $J/\psi$-$J/\psi$, $\eta_c$-$J/\psi$, $\eta_c$-$\eta_c$, $\Upsilon$-$\Upsilon$, etc., using a simplified quark-cluster model. It is found that the Pauli exclusion effect on... -
Vikash Mittal (Institute of Physics, Polish Academy of Sciences)Few-body aspects of many-body systemsContributed
In this work, we introduce a general model for local interactions between quantum walkers conditioned on the internal state of their coins. By choosing their particular case, we systematically study the impact of these interactions on the dynamics of two initially localized and uncorrelated walkers. Our general interaction framework, which reduces to several previously studied models as...
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HEEJIN KIM (Inha University)Exotic statesContributed
We investigate the dynamical generation of $I=0$ charmonium-like tetraquarks with spin-parity assignments $J^{PC}=0^{++}$, $1^{++}$, $2^{++}$, and $3^{--}$ in the mass range of 3.6 to 4.3 GeV. Using an off-shell coupled-channel formalism, we construct kernel amplitudes from effective Lagrangians that satisfy heavy-quark spin-flavor and chiral symmetries. To isolate states that are purely...
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Juraj FedorAtoms and moleculesPoster
We address a decay dynamics of transient anions (resonances) formed in electron molecule collisions. Typically, a lifetime of such a resonance towards electron detachment, determined by the centrifugal barrier, lies in a femto- to pico-second time domain. In polyatomic molecules and in clusters, an efficient intramolecular vibrational redistribution (IVR) prior to the electron detachment can...
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Jaroslav Hofierka (Charles University)Few-body aspects of many-body systemsContributed
Electron-transfer-mediated decay (ETMD) is a highly efficient mechanism for charge and energy redistribution in weakly bound systems. Its dependence on nuclear motion and molecular geometry, however, is not fully understood. We study the NeKr₂ trimer following core ionization of Ne, combining fully dimensional nuclear dynamics with ETMD decay rate calculations and introducing a new 1/R⁶...
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Dr Nina Shevchenko (Nuclear Physics Institute of CAS, Rez, Czech Republic)Contributed
EFB26 opening talk.
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Feng WU (IJCLab)
The three- and four-boson systems near the unitarity limit exhibit universal behavior described by Short-Range Effective Field Theory. At leading order, the unitary limit gives rise to discrete scale invariance and the Efimov effect, governed by a single three-body scale. For general separable regulators, it is shown that the three-body limit cycle follows from a real Möbius transformation...
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Prof. Dean Lee
I review recent progress in studies of nuclear many-body systems using nuclear lattice effective field theory. Some of the topics include calculations of nuclear clustering, multimodal superfluidity, and new computational approaches.
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Prof. Artem Volosniev (Aarhus University)
Understanding strongly-interacting quantum systems remains one of the main challenges in modern physics. While numerical methods have driven much of the progress in this field, simple and intuitive physical interpretations are often elusive. In this context, analytical solutions -- even for toy models -- provide invaluable insights.
In this work, we study strongly attractive spin-1/2...
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Hui-Jae Lee (Inha University)Hadron physicsContributed
We present recent results on the electromagnetic properties of nucleons, obtained within an effective chiral theory derived from the QCD instanton vacuum. A key advantage of this framework is that it contains no adjustable parameters; moreover, the momentum-dependent dynamical quark mass serves as a natural ultraviolet regularization of divergent quark-loop integrals. We employ the pion...
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Toshali Mitra (ITP, University of Heidelberg)Few-body aspects of many-body systemsContributed
Recent experiments demonstrating collective behavior through interaction-driven anisotropic expansion of ten fermions released from an elliptic trap raise a key question: how does collectivity emerge in quantum systems with only a few degrees of freedom? While hydrodynamics successfully describes strongly interacting many-body systems, its applicability to few-fermion systems remains...
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Tanja Kirchner (Tu Darmstadt)
I will quantify the spin entanglement in few-particle scattering (e.g. neutron-proton, neutron-deuteron scattering) using the entanglement power or rather the Taylor approximation of the von Neumann entropy.
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Tetsuo Hyodo (RCNP, the University of Osaka)Hadron physicsContributed
We study entanglement suppression in $s$-wave $\Omega\Omega$ scattering, where each baryon has spin $3/2$. By treating the $S$-matrix as a quantum operator acting on the spin states, we quantify its ability to generate entanglement and identify the conditions on the phase shifts of the spin channels that minimize entanglement generation in the system. In $\Omega\Omega$ scattering, only...
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Vladimir Yurovsky (Tel Aviv University)Few-body methodsContributed
Many-body problem solutions admit the Bethe-ansatz (BA) form of a sum of products of single-particle orbitals from a finite set (see [1] and references therein). Such solutions are applicable to systems with non-diffractive scattering, where a many-body collision can be represented as a sequence of two-body ones. The scattering is non-diffractive whenever the Yang–Baxter consistency conditions...
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Arnoldas Deltuva (Vilnius University)
The elastic neutron-3H scattering at intermediate energies is studied
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using rigorous integral equations solved in the momentum-space partial-wave basis. The four-particle transition operators are expanded into multiple-scattering series in terms of subsystem transition operators [1]. Various approximations resulting from truncation of the series in different ways are evaluated and their ... -
Emeline OLIVEIRAExotic statesContributed
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...
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Lev Khaykovich
Since the first observation of Efimov physics in ultracold atomic gases nearly two decades ago, the field of fewbody quantum physics has undergone rapid development. Log-periodic scaling, a hallmark of Efimov physics, has been confirmed experimentally in both equal-mass and mass-imbalanced systems across a variety of observables, while universal relations governing three-body processes have...
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Dr Angelina Łobejko (University of Gdańsk)Nuclei and nuclear reactionsContributed
Studies of few-nucleon systems form the basis for understanding nuclear interactions and properties of nuclei. The very accurate theoretical calculations for three-nucleon systems should be confronted with a rich set of precise experimental data.
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For this purpose, the BINA (Big Instrument for Nuclear-polarization Analysis) detection system has been installed at CCB (Cyclotron Center... -
Uri Sharell (University of Heidelberg)Atoms and moleculesContributed
Recent experiments with ultracold fermionic gases have demonstrated that even in extremely small systems with only 10 atoms, fluid-like behaviour can emerge [1]. As this is far outside the traditional regime of applicability for hydrodynamics, this ongoing project seeks to understand how this can arise from the microscopic interactions. We briefly review density functional theory (DFT) and...
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Yuki Kamiya (Tohoku University)Hadron physicsContributed
In recent years, studies of hadron-hadron interactions using momentum correlations of hadron pairs observed in high-energy collision experiments have been actively conducted. Regarding Kaon-nucleon interactions, K+p/K−p pairs have been observed. It has been confirmed that these momentum correlations can be well described by chiral dynamics models.
As a further research method for KN/KbarN...
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Zoltan PappFew-body methodsContributed
The Feshbach-Villars equation represents a two-component non-Hermitian Hamiltonian form of the relativistic Klein-Gordon equation. The equation is linear in the time derivative and quadratic in the spatial derivatives, and consequently it is also linear in the energy variable. The energies of independent particles are additive, so we can define the few-particle Hamiltonian as a sum of...
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Hans-Werner Hammer (Technical University of Darmstadt)Few-body methodsContributed
The correlation functions of fermions in the unitary limit are strongly constrained by Schrödinger symmetry, which includes scale invariance. This allows for model-independent predictions of certain hard nuclear reactions with final state neutrons. In systems displaying Efimov physics, such as spinless bosons, the scale invariance is anomalously broken to a subgroup of discrete scaling...
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Dr Ashutosh Kumar Pandey (Warsaw University of Technology)Hadron physicsInvited plenary
Femtoscopic techniques provide a direct tool to measure the space--time extent and dynamical evolution of the system created in heavy-ion collisions. Identical pion pairs have conventionally been used for source size measurements because of their large production yields and well-understood interactions. In addition to determining the source dimensions, femtoscopic analyses offer a powerful...
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Dr Tadashi Hashimoto (RIKEN)
Kaonic nuclear bound states are exotic few-body systems in which an antikaon acts as a constituent particle. They offer a unique testing ground for the strongly attractive $\bar KN$ interaction below threshold and for the interplay between mesonic and baryonic degrees of freedom in compact nuclear systems. The simplest candidate, "$K^-pp$", was observed at J-PARC E15 in the $\Lambda p$...
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Oleksandr ShebekoNuclei and nuclear reactionsContributed
Explorations of the deuteron electrodisintegration $d(e,e'p)n$ have the eventful history, starting from the first coincidence experiments that have been performed in: Stanford, Orsay, Kharkiv, Saclay and continued nowadays at Jefferson Lab. Recent experiments in deuteron electrodisintegration at high momentum transfers, particularly at Jefferson Lab, have pushed deuteron studies into the...
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Laura Šerkšnytė (CERN)
Chiral symmetry in QCD is expected to be partially restored at high temperature and/or baryon density, where the chiral condensate that generates most hadron masses decreases. A key manifestation of this restoration is the degeneracy in mass of chiral partners, such as vector and axial-vector mesons. To identify these effects, it is essential to achieve a precise understanding of the...
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Natalia TimofeyukNuclei and nuclear reactionsContributed
Recently, motivated by possible industrial fusion applications of the $\gamma$-rays accompanying $d$-$t$ collisions, the first model calculations of the minor branching ratio of the $d+t \rightarrow \alpha+n+\gamma$ reaction, have been published [1]. This model exploited the most relevant physics feature -- spin conservation in electric dipole transitions -- which resulted in a peculiar...
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Maria Naeem
Precise theoretical predictions for electroweak processes are essential for fully exploiting the physics potential of current and future collider experiments. Next-to-leading order electroweak radiative corrections to the decay
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W^+(\uparrow) -> c \bar b of a polarised W boson into a pair of heavy quarks are analysed. The analysis is carried out through the angular distribution of the decay... -
Francesco Sgaramella (INFN - National Institute for Nuclear Physics)
Kaonic atoms, exotic systems in which a negatively charged kaon replaces an electron, provide a unique laboratory for probing both the strong and electromagnetic interactions. The X-ray transitions emitted during their atomic cascade are modified by the strong interaction in the innermost levels, enabling precision studies of kaon–nucleon and kaon–nucleus interactions and offering direct...
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Dr Souichi Ishikawa (Hosei University)
A detailed knowledge of low-energy excited states in the ${}^{12}$C nucleus plays an important role in studies of various nuclear models and also of astrophysical issues, such as the triple-$\alpha$ process, in which three $\alpha$-particles in continuum states are fused into a ${}^{12}$C nucleus in stars. However, there still remain some uncertainties in knowledge of ${}^{12}$C continuum...
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Andreas Ekström
A central challenge in nuclear physics is deriving two- and three-nucleon forces, consistently with low-energy quantum chromodynamics, and understanding how they give rise to the rich phenomena observed in few- and many-body systems. In this talk, I review recent advances in constructing nuclear forces from chiral effective field theory, with Bayesian methods and emulator-accelerated...
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Michał Suchorowski (University of Warsaw)Few-body aspects of many-body systemsPoster
Dilute two-dimensional (2D) gases exhibit scale-invariant behaviour that is absent in their three-dimensional counterparts. In attractive systems, this symmetry can be strongly broken — a phenomenon known as the quantum anomaly — by the presence of universal many-body bound states (droplets). To explore this anomaly, especially the corresponding time dynamics, a simple yet powerful theoretical...
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Alfred StadlerHadron physicsContributed
We present the first calculations of the masses of heavy and heavy–light tensor and axial-tensor mesons with total angular momentum up to J=3, obtained within the Covariant Spectator Theory (CST). This fully relativistic Minkowski-space framework describes the quark–antiquark interaction through a one-gluon-exchange plus a covariant generalization of a linear confining potential. The CST...
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Vittorio BarlucchiElectroweak processesContributed
We investigate the structure of four-nucleon systems to shed light on the nature of the first excited 02+ state of Helium-4 and to address the discrepancy in theoretical calculations of its inelastic monopole form factor. We perform new calculations using local potentials derived within chiral effective field theory at various orders in the chiral expansion. We employ both the hyperspherical...
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Patrick Achenbach
The A1 spectrometer facility at the Mainz Microtron (MAMI) is currently the only place worldwide for the high-precision decay-pion spectroscopy of light $\Lambda$ hypernuclei. In a series of experiments, the monochromatic $\pi^-$ momenta from two-body decays at rest of different hypernuclear isotopes were measured. In the recent $^7$Li$(e,e'K^+)$ electroproduction experiment, the $_\Lambda^3$H...
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Roman Čurík (J.Heyrovský Institute of Physical Chemistry)
We present a theoretical toolkit to study the dissociative recombination (DR) of diatomic cations. The toolkit is based on the energy-dependent frame transformation approach combined with the multi-channel quantum defect theory. The complex vibrational basis satisfies the outgoing-wave boundary conditions that can be implemented by determining the nuclear Siegert states or by using exterior...
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Matthias Schindler (University of South Carolina)Hadron physicsContributed
In baryon chiral perturbation theory (BChPT), static properties of the nucleon, such as its mass $m_N$ and axial-vector coupling $g_A$, are determined order-by-order in an expansion in the ratio of the pion mass to a breakdown scale $\Lambda_B$. We apply Bayesian methods to infer the breakdown scales for these two observables and find notably different results. While our pointwise analysis...
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Georgios Mantzaridis (Technische Universitaet Muenchen (DE))Hadron physicsContributed
Understanding the interaction of strange baryons with nucleons is a key ingredient for describing dense baryonic matter, where the appearance of hyperons in the cores of neutron stars is expected to strongly soften the equation of state, hence limiting the maximum stellar mass. New constraints, not only on two-body but also on multi-body hyperonic interactions, are necessary to address this...
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Jun-Young Kim (Inha University)Hadron physicsContributed
Instantons provide a mechanism for chiral symmetry breaking that turns low-energy QCD into an effective theory of massive constituent quarks with chiral spin-flavor interactions. Within the same framework, QCD operators involving gauge fields can be mapped onto corresponding operators in the effective theory. In this work, we investigate instanton effects in the twist-3 quark energy-momentum...
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JAGJIT SINGH (University of Manchester, UK)
The development of advanced Rare Isotope Beam (RIB) facilities has opened new frontiers in exploring neutron-rich nuclei near the drip line. In particular, Borromean halo systems with Z >8 and neutron numbers around the magic numbers N=20 and N=28, as well as those in between, have attracted significant attention [1-11].
In this talk, I will report our recent few-body results on...
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Kimiko Sekiguchi (Kyoto University)Nuclei and nuclear reactionsContributed
A few-scattering system offers a good opportunity
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to study dynamical aspects of three-nucleon forces ($3N$Fs),
which are momentum, spin, and isospin dependent, since it provides
not only cross sections but also a variety of spin observables
at different incident nucleon energies.
Direct comparison between the experimental data
and the rigorous numerical calculations
based on the... -
Dimitrios Petrellis (Aristotle University of Thessaloniki)Hadron physicsContributed
We analyze the $K^+$-nucleon interaction using a separable potential and the relativistic Lippmann-Schwinger equation in momentum space [1]. Parameters of the potential are fitted to the real and imaginary parts of the KN T matrix obtained from a previous partial wave analysis [2] and to the total cross sections. We use statistical learning techniques both in the fitting, as well as in...
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Andreas Nogga
Hyperon–nucleon (YN), hyperon–hyperon (YY), and three-baryon (YNN) interactions play a crucial role in the understanding of hypernuclear systems. Since scattering data are scarce, light hypernuclei gain tremendous importance for constraining and testing these interactions. I show results based on chiral effective field theory interactions starting with a brief introduction to this approach. ...
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Sonia Bacca (University of Mainz)Atoms and moleculesContributed
The leading uncertainty in the extraction of charge radii from spectroscopic measurements of light muonic atoms arises from nuclear structure effects. The dominant contribution, driven primarily by the electric dipole operator, can be expressed in terms of energy-weighted integrals over the nuclear response functions.
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For p-shell nuclei, fully ab initio calculations remain computationally... -
Prof. Jérémy DOHET-ERALY (Université libre de Bruxelles (ULB))Nuclei and nuclear reactionsContributed
More than fifty years ago, the resonating group method (RGM) has been introduced and used successfully to describe nuclear scattering and reactions by using clusterized wave functions. In the traditional approach, the colliding nuclei are described by their groundstate wave function in the shell model. Several generalizations, where the nuclei are described by more elaborate wave functions...
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Prof. Roman Kezerashvili ($^{1}$New York City College of Technology, The City University of New York, Brooklyn, NY, USA\\ $^{2}$The Graduate School and University Center, The City University of New York)Exotic statesContributed
We study light $\phi$-mesic nuclei with number of particles $A=2$--$5$ using Faddeev and Faddeev--Yakubovsky equations with QCD-constrained $\phi N$ interactions in the $\phi N({}^{2}S_{1/2})$ and $\phi N({}^{4}S_{3/2})$ spin channels [1]. The $\phi N$, $\phi NN$, $\phi NNN$, and $\phi NNNN$ systems are analyzed under different mass scenarios and varying spin splitting of the $\phi N$...
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Isaac Vidana Haro
We employ a feed-forward artificial neural network (ANN) to extrapolate {\it ab-initio} hypernuclear No-Core Shell Model results for the $\Lambda$ separation energy $B_\Lambda$ of $^3_\Lambda$H, $^4_\Lambda$H, and $^4_\Lambda$He, obtained using chiral nucleon-nucleon, three-nucleon, and hyperon-nucleon interactions, from computationally accessible harmonic oscillator spaces to large model...
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Sören Schlimme (JGU Mainz)
Precision electron scattering at low momentum transfer provides a powerful tool to investigate few-body systems, nuclear structure, and physics beyond the Standard Model. The Mainz Energy-recovering Superconducting Accelerator at Johannes Gutenberg University Mainz will deliver high-intensity continuous-wave electron beams ideally suited for such studies. The MAGIX experiment combines a...
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Prof. Hyun-Chul Kim (Inha University)Hadron physicsContributed
We present the results from a recent work on the mass spectrum of doubly heavy baryons in a pion mean-field approach. We first focus on the isospin mass splitting of doubly heavy baryons, considering both the hadronic and electromagnetic contributions. We obtain $M_{\Xi_{cc}^{++}}-M_{\Xi_{cc}^{+}}= (1.43\pm 0.38)$ MeV, which is in remarkable agreement with the recent LHCb data. Taking the...
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Andrea Dal Molin, Giulia Marcer (ISTP-CNR)
Fusion plasmas provide a unique environment where few-body nuclear physics and many-body plasma physics naturally intersect, offering opportunities for progress in both fields.
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In this context, plasma physics can directly benefit from advances in few-body nuclear physics. Accurate measurement of fusion yield is a key parameter for evaluating the performance of confined plasmas. Traditionally,... -
Yuko Saito (RIKEN Nishina Center)Nuclei and nuclear reactionsContributed
The necessity of three-nucleon forces (3NFs) has been recognized in various nuclear phenomena, including nuclear binding energies and the equation of state of nuclear matter. Consequently, the construction of precise nuclear force potentials including 3NFs remains a major issue in nuclear physics for achieving a comprehensive understanding of atomic nuclei. Nucleon–deuteron scattering, as a...
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Philipp Quoß (Technische Universität Darmstadt)Nuclei and nuclear reactionsContributed
Hypernuclei offer a unique window on nuclear matter with strangeness and on the role of strange baryons in nuclei. Among them, $\Lambda$-hypernuclei are the most accessible systems and provide an ideal testing ground for these questions. A particularly intriguing question is whether a $\Lambda$ hyperon changes its lifetime once embedded in a nucleus. In this talk, I present a study of mesonic...
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Yuliya Lashko (Bogolyubov Institute for Theoretical Physics, Kyiv, Ukraine)Nuclear astrophysicsContributed
The resonance structure of $^{8}$Be near the $p+^{7}$Li threshold is investigated within a microscopic many-cluster, many-channel model including the three-cluster configurations $^{4}$He+$^{3}$H+$p$, $^{4}$He+$^{3}$He+$n$, and $^{4}$He+$d$+$d$. This framework provides a unified description of the main binary channels $^{4}$He+$^{4}$He, $p+^{7}$Li, $n+^{7}$Be, and $d+^{6}$Li, while explicitly...
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Martin Crhán (Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, Prague 8, 180 00, Czechia)Atoms and moleculesPoster
For several decades, the molecular R-matrix method and its implementation, UKRmol+ [1] have been used to study electron collisions with molecules and molecular photoionization. In recent years the suite has undergone a rapid development. This includes the implementation of the multi-photon R-matrix approach [2] for studies of attosecond electronic dynamics [3] and the inclusion of effective...
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Audrey ANNE
Since the discovery of the neutron in 1932 [1], extensive experimental campaigns and calculations have been carried out to explore the possible existence of multineutron systems [2]. The dineutron being unbound, particular attention has been paid to the next even candidate, the tetraneutron, a system made up of four neutrons. Its few-body character and the absence of Coulomb interaction make...
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Vaibhav Chahar (Jagiellonian University, Poland)Nuclei and nuclear reactionsContributed
We investigate nucleon–deuteron (Nd) scattering in the presence of three-nucleon (3N) interaction effects induced by the Similarity Renormalization Group (SRG) transformation. While SRG evolution is widely used to soften nuclear Hamiltonians and improve convergence in few- and many-body calculations, it also generates many-body forces even when the initial interaction contains only two-body...
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Alessandro Lovato (Argonne National Laboratory & INFN - TIFPA & IFIC)
Solving the quantum many-body problem entails nontrivial difficulties stemming from the exponential growth of the Hilbert-space dimension. Artificial neural networks have proven to be flexible tools for compactly representing quantum many-body states. I will present a variational Monte Carlo method based on neural-network quantum states that solves the nuclear Schrödinger equation in a...
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Dr Ki-Hoon Hong (Inha University)Hadron physicsContributed
Heavy-quark effective theory (HQET) factorizes short-distance coefficients from long-distance hadronic matrix elements, but quantitative predictions require reliable information on long-distance QCD dynamics. We employ the QCD instanton vacuum as a low-energy framework that realizes spontaneous chiral symmetry breaking and induces effective nonlocal heavy-light quark interactions. Within this...
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Izabela Skwira-Chalot (Faculty of Physics, University of Warsaw)
The study of three-nucleon (3N) systems serves as a fundamental testing ground for our understanding of nuclear interactions, bridging the gap between basic nucleon-nucleon (NN) potentials and the complex dynamics of many-body nuclei. Experiments performed at intermediate beam energies reveal that various dynamical ingredients, such as the three-nucleon force (3NF) and Coulomb force, play an...
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Oliver Thim (Chalmers)
In a recent study [1], we predict ground-state energies of $^3$H, $^4$He, and $^6$Li in chiral effective field theory up to next-to-next-to-next-to-leading-order (N$^3$LO) using a power counting guided by renormalization-group invariance. Subleading two-nucleon interactions are treated perturbatively, and for $^4$He and $^6$Li, we calculate the perturbative corrections from numerical...
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Denisa Trnková (Nuclear Physics Institute, Řež)Hadron physicsPoster
We use isobar models to describe the γp → η′p process. The amplitude is constructed as a sum of tree-level Feynman diagrams with proton and nucleon resonance exchanges in the s and u channels and ρ and ω meson exchanges in the t channel. The free parameters of the models are fitted to differential cross section and photon-beam asymmetry data. Three different isobar models are compared with the...
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DAICHI TAKAHASHI (Institute of Science Tokyo)Nuclei and nuclear reactionsPoster
Achieving a unified understanding of nuclear phenomena based on nuclear forces requires detailed information on three-nucleon forces (3NFs), especially their spin-dependent parts. To this end, we propose a high-precision measurement of spin correlation coefficients in deuteron-proton elastic scattering at 100 MeV/nucleon at RIKEN. To reliably extract 3NF effects from these measurements, the...
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Dr Gleb Gribakin (Queen's University Belfast)
At the fundamental level, the annihilation of a positron with an electron is described by QED. As such, it allows one to tests QED by comparing high-precision calculations with experiment, e.g., for the lifetime of positronium (Ps), the simplest matter-antimatter "atom". Positron annihilation and the associated characteristic gamma-ray signal is also a unique probe which provides information...
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Dr Gagandeep Singh (National Centre for Nuclear Research, Poland)Nuclei and nuclear reactionsContributed
The doubly magic nucleus $^{208}$Pb is the archetypal heavy ion system. Yet, there are unresolved questions about its structure. One of these puzzles pertains to the anomalous inelastic scattering populating the 4.086-MeV $2_1^+$
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level. The measured differential cross-sections for the population of this level in 98-MeV $^{12}$C + $^{208}$Pb and 270-MeV $^{3}$He + $^{208}$Pb inelastic... -
Shigeyoshi AoyamaFew-body methodsContributed
Recent advancements in generative AI are fundamentally transforming various sectors of society. In scientific research, "AI coding"—the utilization of AI for software development—is garnering significant attention. In large-scale numerical simulations, implementing new algorithms or adding features often requires several months of intensive development. For instance, in few-body physics, even...
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61. Precision studies of the molecular hydrogen ions - a testing ground for fundamental interactionsProf. Stephan Schiller (Heinrich-Heine-Universität Düsseldorf)Atoms and moleculesInvited plenary
The molecular hydrogen ions are three-body-systems composed of one electron and two light baryons. They are stable and offer a unique potential for both theoretical and experimental investigations at an exceptional level of precision. Indeed, over the last 20 years, the precision has been improved by about a factor 10$^5$, and now has reached the $10^{-12}$ fractional level.
Because the...
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Hiroki Sugahara (Science Tokyo)Nuclei and nuclear reactionsPoster
Three-nucleon forces (3NFs) play a crucial role in describing a range of nuclear phenomena. However, the spin-dependent properties of 3NFs remain incompletely understood. To further investigate these properties, we have initiated a project to measure spin-correlation coefficients in deuteron-proton ($d$-$p$) elastic scattering at 100 MeV/nucleon at RIKEN RIBF.
The measurements require both...
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Hamid Reza HamediAtoms and moleculesPoster
We investigate the propagation of an optical vector vortex weakly interacting with a coherently prepared atomic medium in a three-level Lambda configuration. The vector beam consists of vortex pulse pairs with right- and left-circular polarizations, corresponding to opposite spin angular momenta (SAMs) and carrying opposite orbital angular momentum (OAM) charges ±l. We show that during the...
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Roman Skibiński
Progress in the ability to perform dedicated experiments as well as the increasingly better understanding of nuclear forces opens up the possibility of studying previously unattainable polarization phenomena in nuclear systems. The possibility of performing scattering experiments with measurement of polarization of three particles encourages investigation of the sensitivity of relevant...
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LAURA ELISA MARCUCCI (University of Pisa, INFN-Pisa branch)Nuclear astrophysicsContributed
In this talk, I will present an update on recent theoretical investigations of weak and radiative capture processes of astrophysical interest in systems with A = 2, 3, and 4. In particular, I will review the study of Ref. [1] on the proton-proton weak fusion, carried out within chiral effective field theory (chEFT) using a wide set of nuclear interaction models. This approach has enabled the...
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Rimantas Lazauskas
Hypernuclei provide a uniquely controlled environment for investigating fundamental baryonic interactions. The incorporation of hyperons into atomic nuclei, together with their relatively weak binding, gives rise to exotic systems that enable detailed studies of both hyperon–nucleon (YN) and hyperon–hyperon interactions.
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In this presentation, we employ calculations based on realistic... -
Dr Giulia Marcer (ISTP-CNR)Nuclei and nuclear reactionsPoster
In controlled nuclear fusion, the D + T → n + α fusion reaction is the leading option due to its highest cross section at the lowest center-of-mass energies. In magnetic confinement experiments, the fusion power of a Deuterium-Tritium (DT) plasma can be reliably assessed only through neutron counting, since neutrons, being uncharged, escape the magnetic field and are detected by external...
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ABDESSELAM HADDOUCHE (National School of Built and Groundworks Engineering, Algiers; Algeria.)Atoms and moleculesPoster
Analytical solution methods for few-body quantum systems, such as the Nikiforov–Uvarov formalism, remain widely used to describe rovibrational spectra of diatomic molecules within effective interaction models. For realistic molecular parameters, however, noticeable discrepancies persist between analytical predictions and high-accuracy numerical solutions, particularly for rotationally excited...
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Harald W. Griesshammer (George Washington University)Hadron physicsContributed
Scattering probes the symmetries and strengths of nucleonic and nuclear interactions and relates them to lattice-QCD computations of fundamental hadronic properties. In Compton scattering, the nucleon polarisabilities parametrise the stiffness of charge and spin distributions against deformations, important for example for the proton-neutron mass difference and for the nucleonic Faraday...
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Xilin Zhang (Facility for Rare Isotope Beams, Michigan State U.)
The nuclear continuum theory underpins our understanding of critical reaction dynamics in both laboratory experiments and astrophysical environments, while also sharing deep theoretical ties with broader quantum systems. Rather than an exhaustive review, this talk presents a focused perspective on recent methodological developments designed to advance computations in this domain. I will first...
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Mr Timothy George Backert (Technische Universität Darmstadt)Nuclei and nuclear reactionsContributed
Studying short-distance production of multi-particle states provides a powerful theoretical approach to investigate high-energy reactions with low-energy final states in nuclear physics, particularly in hard knock-out reactions such as recent and forthcoming multi-neutron experiments [0,1,2,5,6,7,8,9]. Understanding these states requires an accurate, ideally model-independent, description of...
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Shuhei OhnoFew-body methodsPoster
Open-source software (OSS) development is a modern and collaborative way to meet the diverse software requirements in few-body systems physics. Our challenge is to build CI/CD with automated testing as a baseline requirement for maintainability and for accepting external contributions. We address this challenge by using two testing methodologies: oracle-based testing and differential testing....
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Alfred StadlerHadron physicsContributed
The well-known Cornell quark-antiquark potential in momentum space has singularities in both its one-gluon-exchange (OGE) and linear confining parts. These singularities prevent the direct application of the convenient Nyström method to solve the corresponding bound-state integral equation for meson masses. While the Coulomb-type singularity in the OGE potential can be treated with a...
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Pascal Naidon (RIKEN)
In this talk, I will present how few-body resonances can be stabilised to so-called « bound states in a continuum », i.e. resonances with vanishing width that do not decay. The underlying mechanism can be explained by an effective two-channel description. It shows how the lifetime of few-body resonances can be made infinitely long by a continuous tuning of system parameters. I will illustrate...
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Renu Bala (Nicolaus Copernicus University in Torun)Atoms and moleculesContributed
Alkali metal hydride cations, XH⁺ (X = Li, Na, K, Rb, Cs), are of significant interest in astrochemistry due to their potential role in the chemical evolution of the interstellar medium and their contribution to molecular processes in interstellar clouds [1]. Accurate knowledge of their structural and spectroscopic properties is essential for identifying these species in space and interpreting...
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Luca Girlanda (University of Salento)Nuclei and nuclear reactionsInvited parallel
The nuclear interaction problem can nowadays be addressed within the systematic framework of effective field theories, rooted in the underlying quantum chromodynamics through its approximate and dynamically broken chiral symmetry. Nevertheless, despite tremendous progress, long-standing discrepancies between theory and experiment persist in the A=3 continuum, most notably the so-called Ay...
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Dr Lucas Vusi Ndala (University of South Africa)Nuclei and nuclear reactionsPoster
The breakup of the weakly bound nucleus 8Li is investigated within the Continuum Discretized Coupled Channels (CDCC) method for the 8Li+9Be, 8Li+58Ni, and 8Li+120Sn reactions. The total, Coulomb, and nuclear breakup cross sections are systematically analyzed to explore the target-mass dependence of the reaction dynamics. The results show a transition from nuclear-dominated breakup for the...
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Nam-Yong Ghim (Inha University)Hadron physicsContributed
The tensor form factors of the nucleon provide essential information for understanding its internal spin structure. The monopole tensor form factor at $Q^2=0$ is identified as the nucleon tensor charge, which corresponds to the first moment of the leading-twist transverse parton distribution function $h_1(x)$. While transversity has been extensively studied both theoretically and...
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DAVID RODRÍGUEZ ENTEM (Universidad de Salamanca)Hadron physicsContributed
We test the accuracy of different approaches performing a bootstrap montecarlo calculation. We consider a toy model in which there is a piece similar to OPE in the 1S0 partial wave, a second piece with a singular interaction of two pion masses range and two short range pieces that make the whole potential regular. We consider the full potential as the solution of the "full theory" and we test...
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Brady MartinFew-body methodsPoster
In quantum field theory, clothed particles are obtained by dressing bare particles using interactions. In the clothed particle representation, there are self-energy and cloud effects that lead to mass renormalization and vertex terms. The clothing procedure allows one to express the original Hamiltonian that depends on a set of bare creation/destruction operators in a new functional form that...
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Igor Bray
The Coulomb few-body problem that is electron scattering on atomic and molecular targets is difficult to calculate due to the targets' countably infinite discrete spectrum and its uncountably infinite continuum. Furthermore, at energies above the ionisation threshold we have at least three charged particles interacting out to infinite distances via the long-ranged Coulomb potential. The...
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Margherita Sagina (University of Pisa, INFN Pisa)Nuclei and nuclear reactionsContributed
In recent years, there has been a notable interest in investigating hypernuclear systems, which provide a unique laboratory for studying strong interactions in the strange quark sector. One of the main applications is related to the so-called "hyperon puzzle" in neutron stars, where theoretical models including hyperons predict maximum masses of \sim 1.5 M_{\odot} or less, in conflict with...
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Daniel BenatarElectroweak processesContributed
We develop a systematic theoretical framework to improve theoretical predictions for nuclear $\beta$ decays of arbitrary angular momentum $J$ by incorporating nuclear corrections to the Coulomb interaction between the emitted lepton and the nuclear charge distribution, useful for ongoing and future precision searches for Beyond-the-Standard-Model (BSM) physics. As such, we emphasize the...
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Prof. Mouna Bouhelal (Echahid Cheikh Larbi Tebessi University)Nuclei and nuclear reactionsContributed
Title: Shell-Model Study of the Mirror Spectroscopic Properties of $^{29}\rm{Al}$ and $^{29}\rm{S}$
Abstract:
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The nuclear structure of the $T = 3/2$ mirror pair $^{29}\rm{Al}$–$^{29}\rm{S}$ is investigated within the shell model using the PSDPF effective interaction in the $p$–$sd$–$pf$ valence space. The study is motivated by the current experimental situation, where $^{29}\rm{Al}$... -
Dr Ubirajara VAN KOLCK (ECT*)
The traditional approach to few-body physics starts from a sophisticated
two-body potential containing many parameters, with few-body forces an
afterthought -- if a thought at all. In contrast, the renormalization group (RG) tells us that the relative importance of few-body forces depends on the chosen resolution scale.For systems of bosons or multicomponent fermions, a three-body...
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alejandro kievskyNuclei and nuclear reactionsContributed
Studying the $s$-wave sector of a two-body system, we refer to a shallow state when the system has a bound or a virtual state close to the break-up threshold. In this case a strict correlation appears between the energy of this state and the low energy scattering parameters, the scattering length and the effective range. This correlation constrains dynamically the system producing the...
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Harald W. Griesshammer (George Washington University)Hadron physicsContributed
Theorists love the Unitarity Limit, when $S$-wave scattering lengths are infinite and the number of symmetries is large. For example, there are strong hints that Nuclear Physics resides in a sweet spot: bound weakly enough to be insensitive to the details of the nuclear interaction; but dense enough that the $NN$ scattering lengths are perturbatively close to this nontrivial fixed point. In...
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Farzaneh NazariNuclei and nuclear reactionsPoster
The detection of ${^6\textrm{Li}}$ in ancient halo stars has remained a persistent challenge in astrophysics for over two decades. Measurements of lithium isotope abundances in the Universe differ markedly from the
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predictions of the Standard Big Bang Nucleosynthesis (SBBN) model, prompting serious questions about our understanding of early cosmological evolution.\
Resolving the discrepancy... -
Matthias Göbel (Nuclear Physics Institute, Czech Academy of Sciences)
At leading order the neutron-neutron interaction is given by its s-wave scattering length. This important parameter of nuclear physics it is not yet known at the desired accuracy. Up-to-date values range from -16.3(4) fm to -18.7(7) fm. I will talk about how neutron-neutron relative-energy distributions from hard knockout reactions on nuclear few-body systems can help to determine this...
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Laura Šerkšnytė (CERN)
A major open challenge in hadron physics is the experimental access to three-body dynamics, particularly in systems of unbound hadrons where conventional scattering techniques remain out of reach. This talk presents the development and implementation of a three-body femtoscopy framework that enables the measurements of three-particle correlation functions to study the residual strong...
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Lucas HappAtoms and moleculesContributed
Resonances in quantum few-body systems are inherently unstable, decaying into continuum states of their constituent subsystems with a finite lifetime. In this talk, we present a mechanism by which three-body resonances can be stabilized into so-called bound states in the continuum (BICs), states embedded in the continuum spectrum that nevertheless exhibit vanishing decay width. Using a...
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Matúš Rojik (Institute of Nuclear Physics, JGU Mainz)Few-body aspects of many-body systemsContributed
In this work, we investigate cluster effective field theory (EFT) with alpha particles treated as elementary degrees of freedom. While halo EFT has been successfully used to describe systems consisting of a core and a few valence nucleons, an EFT tailored to nuclear clustering phenomena remains largely unexplored.
We discuss the necessary modifications to contact EFTs to account for the...
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Mr Michael Gennari
Recent analysis of Fermi decays by C.Y. Seng and M. Gorshteyn and the corresponding $V_{ud}$ determination have revealed a degree of tension with Cabibbo-Kobayashi-Maskawa (CKM) matrix unitarity, confirmation of which would indicate several potential deficiencies within the Standard Model (SM) weak sector. Extraction of $V_{ud}$ requires electroweak radiative corrections (EWRC) from theory to...
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Martin Schäfer (Nuclear Physics Institute of the Czech Academy of Sciences, Rez, Czech Republic)Few-body methodsContributed
In this work [1], we present an extensive theoretical and numerical study of charged few-nucleon systems ($pd$, $dd$, and $p-{}^3\text{He}$ bound states and scattering) in the framework of pionless effective field theory (EFT) up to next-to-leading order (NLO).
We treat the Coulomb interaction nonperturbatively, while NLO interactions, including three-body forces and a four-body force, are...
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Lauro TomioAtoms and moleculesContributed
In an extension of the usual Gross-Pitaevskii approach with nonlinear two-body contact interaction, we study the role of three-body nonlinear interactions with a spatially dependent pumping profile for the stability of polariton Bose–Einstein condensates (PBECs).
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By considering weak and strapless confinements, we show that the combined actions of linear and nonlinear loss and gain terms can... -
Lauro TomioAtoms and moleculesContributed
I will report an investigation on the stability of dark soliton in a fixed radius bubble Bose-Einstein condensate, by varying the nonlinear two-body parameter in the corresponding two-dimensional Gross-Pitaevskii formalism. As shown analytically and numerically, snake instabilities occur for angular modes larger than two, which can only decay in the production of vortex dipole pairs. See...
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Daniel Kromm (Technische Universität Darmstadt)Nuclei and nuclear reactionsContributed
We investigate the renormalization properties of an EFT scheme for two-neutron halo nuclei with weak neutron-core interaction proposed by Hongo and Son. In this theory, there is a universal prediction for the ratio of the mean-square matter radius and charge radius. We find that one further renormalization input is required to predict both radii separately. Using one of the radii as this...
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Tijs Karman
Ultracold atoms, molecules and ions provide a unique playground to explore chemistry at ultracold temperatures. These systems are particularly appealing as controlled quantum systems. The multi-scale nature of these systems that emerges from the multitude of relevant energy and length
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scales, as well as the high density of states of collision complexes, pose theoretical challenges. I will... -
Ludovic PricoupenkoExotic statesContributed
Efimov states are well-know examples of universal few-body states that can be observed in the vicinity of the unitary limit. In this regime where there is a clear scale separation between the range of the interactions and the scattering length, other universal states are possible. They appear for sufficiently attractive short-range inter-particle potentials in close analogy with two-body...
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Elena Filandri (ECT*)
The synthesis of carbon and oxygen is a key problem in nuclear astrophysics, as the reactions
³α → ¹²C + γ and ¹²C(α,γ)¹⁶O determine the stellar C/O ratio and strongly impact stellar evolution.
A consistent theoretical description of these processes at low energies is challenging due to strong Coulomb effects and the pronounced α-cluster structure of the nuclei involved.In this talk, I...
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Giuseppina Orlandini (University of Trento)Nuclei and nuclear reactionsContributed
“Insights on 4He from α-Scattering: the Isoscalar Monopole Cross Section in the resonance region”
S. Bacca (1,2), G. Orlandini (3,4), L. C. Chamon (5), M. Viviani (6), A. Kievsky (6), F. Cappuzzello (7,8), V. Soukeras (7), M .Cavallaro (7), D. Carbone (7)(1) Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Mainz, Germany.
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(2) Helmholtz-Institut Mainz, Johannes...
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