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相关论文: Hyperonic mixing in five-baryon double-strangeness…

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We present the first ab initio calculations for p-shell single-Lambda hypernuclei. For the solution of the many-baryon problem, we develop two variants of the no-core shell model with explicit $\Lambda$ and $\Sigma^+$, $\Sigma^0$,…

The two-particle momentum correlation between the Omega-baryon ($\Omega$) and the $^{4}He (\alpha) $ in high-energy heavy ion collisions is explored. Such correlations as an alternative source of information can help us further understand…

核理论 · 物理学 2025-02-10 Faisal Etminan

Recent experimental evidence presented by the FINUDA Collaboration for a particle-stable Lambda-6H has stirred renewed interest in charting domains of particle-stable neutron-rich Lambda hypernuclei, particularly for unbound nuclear cores.…

核理论 · 物理学 2015-06-16 Avraham Gal , John Millener

$\Lambda^+_c$ hypernuclei are expected to have binding energies and other properties similar to those of strange hypernuclei in view of the similarity between the quark structures of the strange and charmed hyperons, namely $\Lambda(uds)$…

核理论 · 物理学 2016-04-01 Sabyasachi Ghosh , Carlos E. Fontoura , Gastão Krein

The role of the isoscalar hyperon Lambda in probing the density dependence of the nuclear symmetry energy is studied in multi-Lambda hypernuclei, hyperon-rich matter and neutron stars in relativistic models. Relationships between the…

核理论 · 物理学 2008-11-26 W. Z. Jiang

Significant uncertainties persist in describing the equation of state and internal structure of hyperon stars due to the limited understanding of the mechanisms underlying hyperon interactions. Constraining the interaction parameter space…

核理论 · 物理学 2025-11-11 Shi Yuan Ding , Xiang Dong Sun , Bao Yuan Sun , Ang Li

A systematic study of the effects of hyperon couplings on hyperon superfluidity is conducted by using the relativistic mean field model. Combining the slope of symmetry energy, the hyperon couplings are determined in two ways -- by the…

核理论 · 物理学 2023-10-04 Zhong-Hao Tu , Shan-Gui Zhou

We investigate heavy-ion multinucleon transfer reactions using the coupled-channels formalism. We first use the semi-classical approximation and show that a direct coupling between the entrance and the pair transfer channels improves a fit…

核理论 · 物理学 2015-11-25 Guillaume Scamps , Kouichi Hagino

We study to what extent the unique observation of $\Lambda\Lambda$ hypernuclei by their weak decay into known $\Lambda$ hypernuclei, with lifetimes of order 10$^{-10}$ s, rules out the existence of a deeply bound doubly-strange (${\cal…

核理论 · 物理学 2024-09-05 Avraham Gal

We calculate the $\Lambda \Lambda \to YN$ transition rate of ${^{\phantom{\Lambda}6}_{\Lambda \Lambda}}$He by the hybrid picture, the $\pi$ and $K$ exchanges plus the direct quark processes. It is found that the hyperon-induced decay is…

核理论 · 物理学 2010-04-05 K. Sasaki , T. Inoue , M. Oka

We investigate the ground-state properties of four mirror hypernuclei pairs--$^{10}_\Lambda$Be-$^{10}_\Lambda$B, $^{12}_\Lambda$B-$^{12}_\Lambda$C, $^{16}_\Lambda$N-$^{16}_\Lambda$O, and $^{40}_\Lambda$K-$^{40}_\Lambda$Ca--within the…

核理论 · 物理学 2025-06-17 Yu-Ting Rong , Dan Yang , Cheng-Jun Xia , Ting-Ting Sun

We study the long range part of the $\Lambda$-hyperon optical potential in nuclei using Quantum Many Body techniques and flavor-SU(3) Chiral Lagrangians as starting point. More precisely, we study the contributions to the $\Lambda$-hyperon…

核理论 · 物理学 2008-11-26 J. Martin Camalich , M. J. Vicente Vacas

The large charge symmetry breaking (CSB) implied by the $\Lambda$ binding energy difference $\Delta B^{4}_{\Lambda}(0^+_{\rm g.s.})\equiv B_{\Lambda}(_{\Lambda}^4$He)$-$$B_{\Lambda}(_{\Lambda}^4$H) = 0.35$\pm$0.06 MeV of the $A=4$ mirror…

核理论 · 物理学 2015-04-21 Avraham Gal

Based on relativistic mean field (RMF) models, we study finite $\Lambda$-hypernuclei and massive neutron stars. The effective $N$-$N$ interactions PK1 and TM1 are adopted, while the $N$-$\Lambda$ interactions are constrained by reproducing…

核理论 · 物理学 2018-03-14 Ting-Ting Sun , Cheng-Jun Xia , Shi-Sheng Zhang , M. S. Smith

The repulsive three-body force between the lambda ($\Lambda$) hyperon and medium nucleons is a key element in solving the hyperon puzzle in neutron stars. We investigate the binding energies of $\Lambda$ hyperon in hypernuclei to verify the…

核理论 · 物理学 2023-12-14 Asanosuke Jinno , Koichi Murase , Yasushi Nara , Akira Ohnishi

The identification of flavored multiskyrmions with the ground states of known hypernuclei is successful for several of them, e.g. for isodoublet H(Lambda) - He(Lambda), A=4, isoscalars He(Lambda) (A=5) and Li(Lambda) (A=7). In other cases…

核理论 · 物理学 2011-01-27 V. B. Kopeliovich

Rearrangement effects in light hypernuclei are investigated in the framework of the Brueckner theory. We can estimate without detailed numerical calculations that the energy of the $\alpha$-core is reduced by more than 2.5 MeV when the…

核理论 · 物理学 2009-11-10 M. Kohno , Y. Fujiwara , Y. Akaishi

We study hyperon resonances by solving coupled channel scattering equations. The coupled systems include pseudoscalar- and vector-baryon channels. The parameters of the model are restricted by making a $\chi^2$-fit to the cross section data…

高能物理 - 唯象学 · 物理学 2019-08-07 K. P. Khemchandani , A. Martínez Torres , J. A. Oller

The spectral density of the $D$-meson in the nuclear environment is studied within a self-consistent coupled-channel approach assuming a separable potential for the bare meson-baryon interaction. The $DN$ interaction, described through a…

核理论 · 物理学 2009-11-10 L. Tolos , J. Schaffner-Bielich , A. Mishra

The production of Lambda hyperons and light hypernuclei in heavy-ion collisions provides critical insights into the nuclear equation of state (EoS) and hyperon interactions in dense matter, addressing the longstanding ``hyperon puzzle'' in…

核理论 · 物理学 2025-05-20 Gao-Chan Yong , J. L. Rodríguez-Sánchez , Yapeng Zhang