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The one- and two-step mechanisms of the $pd\to ^3H_\Lambda K^+$ reaction in the range of incident proton kinetic energy 1.13-3.0 GeV have been investigated. A remarkable peculiarity of the two-step mechanism which incorporates subprocesses…

Nuclear Theory · Physics 2009-10-31 V. I. Komarov , A. V. Lado , Yu. N. Uzikov

In the present work, we examine the production of $\Xi(1530)$ in the $K^- p \to K^{+} \Xi(1530)^{-}$ and $K^- p \to K^{0} \Xi(1530)^{0}$ reactions utilizing an effective Lagrangian approach. To accurately fit the cross sections for both…

High Energy Physics - Phenomenology · Physics 2026-03-20 Quan-Yun Guo , Jing Liu , Peiwen Wu , Dian-Yong Chen

We investigate theoretically $\Lambda$ production spectra of $^3$He($\pi$, $K$) reactions at $p_\pi=$ 1.05--1.20 GeV/$c$ in the distorted-wave impulse approximation, using the continuum-discretized coupled-channel method. The production…

Nuclear Theory · Physics 2020-01-08 Toru Harada , Yoshiharu Hirabayashi

We investigate $S=-2$ production from the $\Lambda p\to K^+X$ reactions within the effective Lagrangian approach. The $\Lambda p\to K^+\Lambda\Lambda$ and $\Lambda p\to K^+\Xi^-p$ reactions are considered to find the lightest $S=-2$ system,…

High Energy Physics - Phenomenology · Physics 2021-06-30 Jung Keun Ahn , Seung-il Nam

A model for the $\bar K d \to \pi Y N$ reactions with $Y=\Lambda, \Sigma$ is developed, aiming at establishing the low-lying $\Lambda$ and $\Sigma$ hyperon resonances through analyzing the forthcoming data from the J-PARC E31 experiment.…

Nuclear Theory · Physics 2016-12-22 H. Kamano , T. -S. H. Lee

In the present work, we propose to investigate the productions of $\Lambda_{c}(2910)$ and $\Lambda_{c}(2940)$ in the $\pi^{-} p \rightarrow D^{-} D^{0} p$ processes by utilizing an effective Lagrangian approach, where $\Lambda_c(2910)$ and…

High Energy Physics - Phenomenology · Physics 2025-05-20 Quan-Yun Guo , Dian-Yong Chen

The FINUDA experiment collected data to study the production of hypernuclei on different nuclear targets. The hypernucleus formation occurred through the strangeness-exchange reaction $K^-_{stop} + \; ^AZ \rightarrow \; ^A_{\Lambda}Z +…

The differential cross sections of $\Lambda_\mathrm{c}^+$ baryon production are measured via the exclusive decay channel $\Lambda_\mathrm{c}^+$ $\to$ pK$^-\pi^+$ using the CMS detector at the LHC. Spectra are measured as a function of…

High Energy Physics - Experiment · Physics 2020-03-03 CMS Collaboration

We examine theoretically production of the neutron-rich $^{10}_{\Lambda}$Li hypernucleus by a double-charge exchange ($\pi^-$, $K^+$) reaction on a $^{10}$B target with distorted-wave impulse approximation calculations. The result shows…

Nuclear Theory · Physics 2009-01-21 T. Harada , A. Umeya , Y. Hirabayashi

We investigate the reaction mechanism of $K^0 \Lambda$ photoproduction off the neutron target, i.e., $\gamma n \to K^0 \Lambda$, in the range of $W\approx 1.6-2.2$ GeV. We employ an effective Lagrangian method at the tree-level Born…

High Energy Physics - Phenomenology · Physics 2020-01-08 Sang-Ho Kim , Hyun-Chul Kim

In a recent paper [PLB 837 (2023) 137669] we showed that all measured ($1s_\Lambda$, $1p_\Lambda$) pairs of $\Lambda$ binding energies in $\Lambda$-hypernuclei across the periodic table, $12\leq A \leq 208$, can be obtained from a…

Nuclear Theory · Physics 2023-08-15 E. Friedman , A. Gal

Employing the Bonn-Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction $p(3.5GeV)+p\to pK^{+}\Lambda$. This reaction might contain information about the kaonic cluster "$ppK^-$" via its decay into…

The production of neutron rich $\Lambda$-hypernuclei via the ($K^-_stop$,$\pi^+$) reaction has been studied using data collected with the FINUDA spectrometer at the DA$\Phi$NE $\phi$-factory (LNF). The analysis of the inclusive $\pi^+$…

We study the production of the stable six-quark $H$ dibaryon via the $(K^-,K^+)$ reaction on a $^{12}$C target within a covariant effective Lagrangian model. The calculations are performed within a factorization approximation, in which the…

Nuclear Theory · Physics 2013-08-27 R. Shyam , O. Scholten , A. W. Thomas

We first determine the Lambda-N S-wave phase shifts so as to reproduce the experimental Lambda separation energies of A=3, 4 Lambda-hypernuclei, and then construct three phase-equivalent Lambda-N potentials with different central repulsion.…

Nuclear Theory · Physics 2009-10-31 Hidekatsu Nemura , Yasuyuki Suzuki , Yoshikazu Fujiwara , Choki Nakamoto

The $(p,p \alpha)$ reaction offers a direct means to probe preformed $\alpha$-cluster structures in nuclei under quasi-free scattering conditions. Previous studies around 100 MeV provided valuable insights into $\alpha$ clustering, but…

Recent studies on nucleon and alpha knockout reactions have shown that the distorted-wave impulse approximation (DWIA) is a simple and accurate method to describe these reactions. As it has been argued for decades, the nuclear absorption is…

Nuclear Theory · Physics 2023-09-06 Sang-In Shim , Kazuki Yoshida , Kazuyuki Ogata

Simulations of the $\Lambda$-hyperon and light-hypernuclei production in Au+Au collisions at $\sqrt{s_{NN}}=$ 3 GeV were performed within updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (Ultra-relativistic Quantum…

Nuclear Theory · Physics 2024-03-06 M. Kozhevnikova , Yu. B. Ivanov

A gauge-invariant model is constructed for the $\gamma p \to K^+\Lambda(1690)$ reaction within a tree-level effective Lagrangian approach with the purpose to understand the underlying production mechanisms and to study the resonance…

High Energy Physics - Phenomenology · Physics 2022-04-08 Neng-Chang Wei , Ai-Chao Wang , Fei Huang