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We analyze hyperon and nucleon mass shifts in nuclear matter using chiral perturbation theory. Expressions for the mass shifts that include strong interaction effects at leading order in the density are derived. Corrections to our results…

High Energy Physics - Phenomenology · Physics 2009-10-28 Martin J. Savage , Mark B. Wise

The relativistic nucleus-nucleus collisions can produce hypernuclei and low-temperature hyper-matter as a result of hyperon capture by nuclear residues and free nucleons. We use the transport, coalescence and statistical models to describe…

Nuclear Theory · Physics 2019-11-13 Alexander Botvina , Marcus Bleicher , Nihal Buyukcizmeci

We use the self-consistent mean-field theory to discuss the ground state and decay properties of $\Lambda$ hypernuclei. We first discuss the deformation of $\Lambda$ hypernuclei using the relativistic mean-field (RMF) approach. We show…

Nuclear Theory · Physics 2015-05-13 K. Hagino , Myaing Thi Win , Y. Nakagawa

We study the effects of correlations beyond the independent particle model in the evaluation of neutron skins of various neutron-rich doubly magic nuclei. We consider short- and long-range correlations to take into account the presence of…

Nuclear Theory · Physics 2022-07-01 G. Co' , M. Anguiano , A. M. Lallena

We examine the general nature of nuclear odd-even mass differences by employing neutron and proton mass relations that emphasize these effects. The most recent mass tables are used. The possibility of a neutron excess dependence of the…

Nuclear Theory · Physics 2014-08-27 D. Hove , A. S. Jensen , K. Riisager

The contribution of Lambda hyperons to neutrino scattering rates is calculated in the random phase approximation in a model where the interaction is described by a Skyrme potential. Finite temperature and neutrino trapping are taken into…

Nuclear Theory · Physics 2008-11-26 L. Mornas

We calculate $\Lambda$ and $\bar{\Lambda}$ hadron production cross sections in charged lepton semi-inclusive deep-inelastic scattering off nuclear target ($A$, using iron $\mathrm{Fe}$ as an example) and deuteron ($D$) target. The results…

Nuclear Theory · Physics 2018-07-04 Chang Gong , Bo-Qiang Ma

The energy spectrum of nucleons in high-density nuclear matter is investigated in the framework of relativistic meson-nucleon many-body theory, employing the $1/N$ expansion method. The coupling of the nucleon with the particle-hole…

Nuclear Theory · Physics 2009-09-25 Kazuhiro Tanaka

We study single-particle potential of Lambda, Sigma, and Xi hyperons in nucleonic matter starting from the fundamental theory of the strong interaction, QCD. First we carry out a lattice QCD numerical simulation, and extract baryon-baryon…

High Energy Physics - Lattice · Physics 2019-09-04 Takashi Inoue

Within the microscopic transport, systematic investigation of the many facets of hyperons and hypernuclei up to strangeness $S = -2$ are carried out for $^{197}$Au + $^{197}$Au and $^{40}$Ca + $^{40}$Ca at the incident energy of $3A$ GeV.…

Nuclear Theory · Physics 2022-06-28 Hui-Gan Cheng , Zhao-Qing Feng

A previously derived relativistic energy density functional for nuclei, based on low-energy in-medium chiral dynamics, is generalized to implement constraints from chiral SU(3) effective field theory and applied to $\Lambda$ hypernuclei.…

Nuclear Theory · Physics 2009-12-10 P. Finelli , N. Kaiser , D. Vretenar , W. Weise

The nucleon-nucleon correlation between nucleons leads to the Fermi surface depletion measured by a $Z$-factor in momentum distribution of dense nuclear matter. The roles of the Fermi surface depletion effect ($Z$-factor effect) and its…

Nuclear Theory · Physics 2021-01-19 J. M. Dong

Antiproton annihilations on nuclei provide a very interesting way to study the behaviour of strange particles in the nuclear medium. In low energy $\bar p$ annihilations, the hyperons are produced mostly by strangeness exchange mechanisms.…

Nuclear Theory · Physics 2015-06-04 A. B. Larionov , T. Gaitanos , U. Mosel

We study the production of $\Lambda$ hyperons in $p + A$ reactions on the basis of a BUU transport approach from 1.1 to 1.9 GeV and evaluate the properties of the hypernuclei produced in particular with respect to their momentum…

Nuclear Theory · Physics 2007-05-23 W. Cassing , Z. Rudy , L. Jarczyk , B. Kamys , P. Kulessa , O. W. B. Schult , A. Sibirtsev , A. Strzałkowski

The exclusive production of hyperon-antihyperon pairs close to their production threshold in antiproton - nucleus collisions offers a unique and hitherto unexplored opportunity to elucidate the behaviour of antihyperons in nuclei. For the…

Nuclear Theory · Physics 2015-09-30 Alicia Sanchez Lorente , Sebastian Bleser , Marcell Steinen , Josef Pochodzalla

The previous mean-field calculation [Myaing Thi Win and K. Hagino, Phys. Rev. C{\bf 78}, 054311 (2008)] has shown that the oblate deformation in $^{28,30,32}$Si disappears when a $\Lambda$ particle is added to these nuclei. We here…

Nuclear Theory · Physics 2018-07-04 H. Mei , K. Hagino , J. M. Yao , T. Motoba

The A-dependence is observed in $x_F$-distributions for the $\Lambda K^0$ system produced with the small transverse momentum in the neutron-nucleus interactions. For the $\Lambda$ hyperons similar dependence isn't seen. The result is…

Simple generic aspects of nuclear pairing in homogeneous medium as well as in finite nuclei are discussed. It is argued that low-energy nuclear structure is not sensitive enough to resolve fine details of nuclear nucleon-nucleon (NN)…

Nuclear Theory · Physics 2009-11-11 Wojciech Satula

In this work, we study the properties of neutron stars using the linear Relativistic Mean-Field (RMF) theory and consider multiple degrees of freedom inside neutron stars, including hyperons and $\Delta$ resonances. We investigate different…

Nuclear Theory · Physics 2025-10-17 Chen Wu , Wenjun Guo

Understanding the strong interactions within baryonic systems beyond the up and down quark sector is pivotal for a comprehensive description of nuclear forces. This study explores the interactions involving hyperons, particularly the…

Nuclear Theory · Physics 2024-10-08 Fabian Hildenbrand , Serdar Elhatisari , Zhengxue Ren , Ulf-G. Meißner