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We investigate the interaction of an antikaon ($K^-$) with the $^{6}$Li nucleus, described as an $\alpha + d$ cluster system. The study aims to explore the formation of the $\Lambda(1405)$ resonance through the $K^-d$ subsystem in the…

Nuclear Theory · Physics 2026-05-04 Ahmad Naderi Beni , Sajjad Marri

We argue that the observation of the color transparency effect in the semiexclusive $A(\pi^-,l^+ l^-)$ process is important for determining whether it is possible to extract the generalized parton distributions of the nucleon from the…

Nuclear Theory · Physics 2016-03-30 A. B. Larionov , M. Strikman , M. Bleicher

The significance of $\Lambda\Lambda$-$\Xi$N coupling in double-$\Lambda$ hypernuclei has been studied. The Pauli suppression effect due to this coupling in $^6_{\Lambda\Lambda}$He has been found to be 0.43 MeV for the coupling strength of…

Nuclear Theory · Physics 2008-11-26 Khin Swe Myint , S. Shinmura , Y. Akaishi

We report the measurement of the $\gamma p \rightarrow K^{+}\Lambda$ and $\gamma p \rightarrow K^{+}\Sigma^{0}$ reactions at SPring-8. The differential cross sections and photon-beam asymmetries are measured at forward $K^{+}$ production…

New results concerning the production of neutral strange particles, $K^0$ and $\Lambda$ in Ni + Ni collisions at 1.93$A$ GeV, measured with the FOPI detector at GSI-Darmstadt, are presented. Rapidity density distributions and Boltzmann…

Nuclear Experiment · Physics 2007-08-21 M. Merschmeyer , X. Lopez , N. Bastid , P. Crochet , N. Herrmann , FOPI Collaboration

Properties of hypernuclei are studied in the context of a chiral Lagrangian which successfully describes ordinary nuclei. Lambda-Sigma^0 mixing arises from nondiagonal vertices in flavor space induced by the vector mesons and by the…

Nuclear Theory · Physics 2008-11-26 H. Mueller , J. R. Shepard

The efficiency for multi-strange hyperon reconstruction and the detection strategy for basic kinematic parameters are described using experimental data of p+C interaction at 10 GeV/c. The efficiency for $\Lambda$ hyperon reconstruction is…

High Energy Physics - Experiment · Physics 2012-02-07 P. Aslanyan , I. Vassilev

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…

Nuclear Theory · Physics 2018-03-14 Ting-Ting Sun , Cheng-Jun Xia , Shi-Sheng Zhang , M. S. Smith

The unquenched quark models predict the new particle $\Sigma^*$ with spin parity $J^P=1/2^-$ and its mass is around the well established $\Sigma^*(1385)$ with $J^P=3/2^+$. Here by using the effective Lagrangian approach we study \kp\…

High Energy Physics - Phenomenology · Physics 2010-05-12 Jia-Jun Wu , S. Dulat , B. S. Zou

The $\Lambda p \to \Lambda p \pi^0$ reaction near threshold is studied within an effective Lagrangian method. The production process is described by single-pion and single-kaon exchange. In addition to the role played by the…

Nuclear Theory · Physics 2014-11-19 Ju-Jun Xie , Jia-Jun Wu , Bing-Song Zou

A hypothesis is proposed herein, suggesting that a pion-nuclear resonance may be observed in the $\alpha+d\to{}^6\mathrm{Li}(3.563)+\pi^0$ reaction. The resonance has a $\pi NN\alpha$ structure, containing $\alpha NN$ and $\pi NN$…

Nuclear Experiment · Physics 2022-03-08 Hiroyuki Fujioka

Recent work on using density dependent $\Lambda$-nuclear optical potentials in calculations of $\Lambda$-hypernuclear binding energies is reviewed. It is found that all known $\Lambda$ binding energies in the mass range $16 \leq A \leq 208$…

Nuclear Theory · Physics 2026-02-11 Eliahu Friedman , Avraham Gal

We have investigated the $\Lambda_c^+\to n\pi^+\pi^0$ decay process using the chiral unitary approach, by considering that the nucleon resonance $N(1535)$ could be dynamically generated through $S$-wave pseudoscalar meson-octet baryon…

High Energy Physics - Phenomenology · Physics 2025-07-24 Ruitian Li , Xuan Luo , Hao Sun

We propose an optimal Fermi-averaging for an elementary $\pi^+$+$n$$\to$$K^+$+$\Lambda$ t-matrix under the on-energy-shell condition, in order to describe ($\pi^+$,$K^+$) reactions on a nuclear target in the framework of a distorted-wave…

Nuclear Theory · Physics 2007-05-23 T. Harada , Y. Hirabayashi

We investigate the $pp \to pK^{+}\Lambda$ reaction within an effective Lagrangian model where the contributions to the amplitudes are taken into account within the tree level. The initial interaction between the two nucleons is modeled by…

Nuclear Theory · Physics 2009-10-31 R. Shyam

Cross-sections and recoil polarizations for the reactions gamma + p --> K^+ + Lambda and gamma + p --> K^+ + Sigma^0 have been measured with high statistics and with good angular coverage for center-of-mass energies between 1.6 and 2.3 GeV.…

Nuclear Experiment · Physics 2019-08-14 J. W. C. McNabb , R. A. Schumacher , L. Todor

Photo- and electroproduction of $K\Sigma$ have been investigated near their production thresholds by using an effective Lagrangian approach. For this purpose, the background amplitude is constructed from suitable Feynman diagrams, whereas…

Nuclear Theory · Physics 2015-06-23 T. Mart

We study ${\Lambda}K^+$ pair production in the interaction of protons of 2.83 GeV kinetic energy with C, Cu, Ag, and Au target nuclei in the framework of the nuclear spectral function approach for incoherent primary proton--nucleon and…

Nuclear Theory · Physics 2017-11-23 E. Ya. Paryev , M. Hartmann , Yu. T. Kiselev

We investigate $^6$Li($n$, $n'$)$^6$Li$^*$ $\to$ $d$ + $\alpha$ reactions by using the continuum-discretized coupled-channels method with the complex Jeukenne-Lejeune-Mahaux effective nucleon-nucleon interaction. In this study, the $^6$Li…

Nuclear Theory · Physics 2011-07-11 T. Matsumoto , D. Ichinkhorloo , Y. Hirabayashi , K. Katō , S. Chiba

In this study, applying the effective Lagrangian approach, we investigate the reaction $\pi^-p\rightarrow K^{*}\Sigma$ to explore the production of the hidden-strange molecular pentaquarks $P_{s\bar{s}}$. Specifically, we analyze two…

High Energy Physics - Phenomenology · Physics 2025-02-17 Xiao-Yun Wang , Yuan Gao , Xiang Liu