Conveners
Parallel 5：Few-nucleon systems, including QCD inspired approaches
- Feng-Kun Guo (ITP, CAS)
Parallel 5：Few-nucleon systems, including QCD inspired approaches
- Dean Lee (Michigan State University)
Parallel 5：Few-nucleon systems, including QCD inspired approaches
- Evgeny Epelbaum ()
Parallel 5：Few-nucleon systems, including QCD inspired approaches
- Jia-Jun Wu (IHEP)
Parallel 5：Few-nucleon systems, including QCD inspired approaches
- Kimiko Sekiguchi (Tohoku University)
Parallel 5：Few-nucleon systems, including QCD inspired approaches
- Jun-Xu Lu (Beihang University)
The effects of three-nucleon force (3NF) have been actively studied by using the nucleon-deuteron (Nd) scattering states. The differential cross sections of the elastic Nd scattering at the energy below 150 MeV can be well reproduced by the Faddeev calculation based on modern nucleon-nucleon (NN) interactions and 3NF. On the other hand, the data at 250 MeV was underestimated by the...
The proton is the simplest element of matter and the deuteron is the simplest compound nucleus; however, the measurements of their charge radii present significant puzzles. These puzzles are still unresolved, as they originate from the fact that the radii measured with high precision in muonic spectroscopy differ from those measured in ordinal-atom spectroscopy and electron scattering.
To...
Necessity of the three-nucleon forces (3NFs) have come to light in various nuclear phenomena, for example, binding energies of nuclei, and equation of state in nuclear matters. As numerically exact solutions of the Faddeev equations using 2N- and 3N-forces are now attainable for observables in nucleon-deuteron (Nd) scattering, intricate information of the 3NFs can be extracted by directly...
Nucleon-nucleon interaction, or nuclear force, is the crucial input for ab-initio calculation of modern nuclear physics. It plays a fundamental role in understanding all nuclear structure and reaction phenomena. Nuclear force is the residue of strong interaction among nucleons, including protons and neutrons, which are bound into a large variety of nucleus of diverse nature depending on the...
To explore the properties of H-like dibaryon $\Lambda_c \Lambda_c(0^+)$, we proceed ab-initio calculation on lattice. Two Wilson-Clover ensembles are used with the same setup at $m_\pi \approx 303 \,$MeV and lattice spacing $a\approx0.07746\,$fm. We find the coupling between $\Lambda_c\Lambda_c$ and $\Xi_{cc}N$ or $\Sigma_c\Sigma_c$ couldn't convert the repulsion between two $\Lambda_c$s into...
In the work of prediction [Phys. Rev. C60, 045203], it was found that the hidden color (CC) channel plays an important role in forming nonstrange d* bound state and which is consistent with the COSY experiment. In the above work, the proposed chiral quark model were utilized in dynamically solving the resonating group method (RGM) equations for scattering processes and bound states. In...
Motivated by the recent progress in developing high-precision relativistic chiral nucleon-nucleon interactions, we study the antinucleon-nucleon interaction at the leading order in the covariant chiral effective field theory. The phase shifts and inelasticities with $J\leq 1$ are obtained and compared to their non-relativistic counterparts. For most partial waves, the descriptions of phase...
Recently, the femtoscopic technique provided insights into the previously experimentally inaccessible strong interaction between hadron pairs, including strangeness or charm. The ALICE Collaboration has, for the first time, extended such measurements to three-hadron and hadron-nucleus systems. Such studies provide a pivotal input to a better understanding of exotic nuclei and three-body...
The Similarity Renormalization Group (SRG) is a potent method explored for decoupling nuclear potentials, aimed at reducing computational demands in observable calculations. Its versatility and robustness in handling nuclear interactions offer a gateway to deeper insights into the renormalization process. These transformations, similar to the renormalization group, are typically unitary in...
In this paper we are going to intend to study the mass spectrum of heavy mesons, for
this we consider the Cornell potential as the interaction between quark and antiquark and
choose the Variational method to solve the Schrödinger equation. This method defines the
wave function as a linear combination of test functions. We can optimize coefficients of
the obtained meson mass function using...
We solve the nucleon's wave functions from the eigenstates of the light-front quantum chromodynamics Hamiltonian for the first time, using a fully relativistic and nonperturbative approach based on light-front quantization, without an explicit confining potential. These eigenstates are determined for the three quark, three-quark-gluon, and three-quark-quark-antiquark Fock representations,...
Particles of non-zero spin produced in non-central heavy-ion collisions are expected to be polarized along the direction perpendicular to the reaction plane because of their spin-orbit interactions in the produced matter, and this has indeed been observed for many hyperons and vector mesons. Here, we show that the hypertriton ($^3_\Lambda$H), which is the lightest hypernucleus, is also...
Based on the beyond-mean-field Skyrme-Hartree-Fock model, we investigate the shape coexistence in Ne isotopes and the effect of $\Lambda$ hyperon on the energy level structure in the nuclei. The up-to-date Skyrme-type $N\Lambda$ interaction SLL4 and the $NN$ interaction SGII are employed. Low-lying energy spectra of $^{20,22,24,26,28,30,32,34}$Ne, including the low-lying states with $J\leq 6$,...
The neutron-rich isotopes of hydrogen, such as $\rm ^{6}H$ and $\rm ^{7}H$, are good platforms for the study of NN interactions in neutron-rich environments because they have the largest neutron-to-proton ratios known so far. However, the experimental and theoretical studies of them are still limited. For $\rm ^{6}H$, the energy of its ground state is still controversial. It is about 2.7 MeV...
Triangle Singularity (TS) is a loop effect that occurs under specific kinematic conditions. Isospin breaking is a rare decay process in strong interactions. In certain scenarios, Triangle Singularity can amplify the effects of isospin breaking. In this context, we will explore the $J/\psi \to \Lambda \bar{\Lambda} \pi$ process involving Triangle Singularity. Subsequently, in this process, we...
Application of the generalization of the Wilsonian renormalization group by introducing multitude of cutoff parameters to the nucleon-nucleon scattering problem in the formalism of chiral effective field theory will be considered. The resulting expansion of the effective potential around the non-trivial fixed point and the corresponding power counting will be discussed.
