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We investigate the production of a cascade hyperon (Xi) through the K^- + p --> K^+ (K^0) + Xi^- (Xi^0) reactions, within an effective Lagrangian model where these reactions proceed via excitations of Lambda and Sigma resonance intermediate…

High Energy Physics - Phenomenology · Physics 2015-03-19 R. Shyam , O. Scholten , A. W. Thomas

We investigate the production of a cascade hyperon ($\Xi$) and bound $\Xi^-$ hypernuclei in the $(K^-,K^+)$ reaction on proton and nuclear targets, respectively, within a covariant effective Lagrangian model. The $K^+\Xi^-$ production…

Nuclear Theory · Physics 2013-09-05 R. Shyam

Using a gauged flavor SU(3)-invariant hadronic Lagrangian, we calculate the cross sections for the strangeness-exchange reactions YY to N\Xi (Y=\Lambda, \Sigma) in the Born approximation. These cross sections are then used in the…

Nuclear Theory · Physics 2013-05-30 Feng Li , Lie-Wen Chen , Che Ming Ko , Su Houng Lee

Production of the doubly strange $\Xi $ baryon in heavy-ion collisions at \textrm{SIS} energies is studied in a relativistic transport model that includes perturbatively the strangeness-exchange reactions $\bar{K}\Lambda \to \pi \Xi $ and…

Nuclear Theory · Physics 2009-11-10 Lie-Wen Chen , Che Ming Ko , Yiharn Tzeng

We study the production of bound cascade hypernuclei via the (K-,K+) reaction on 12C and 28Si targets within a covariant effective Lagrangian model, employing the cascade bound state spinors derived from the latest quark-meson coupling…

Nuclear Theory · Physics 2012-05-10 R. Shyam , K. Tsushima , A. W. Thomas

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 $\Xi(1690)^-$ production from the $K^-p\to K^+K^-\Lambda$ reaction within the effective Lagrangian approach at the tree-level Born approximation. We consider the $s$- and $u$-channel $\Sigma/\Lambda$ ground states and…

High Energy Physics - Phenomenology · Physics 2018-12-19 Jung Keun Ahn , Seung-il Nam

Photoproduction of the cascade resonances has been investigated in the reactions $\gamma p \to K^+ K^+ (X)$ and $\gamma p \to K^+ K^+ \pi^- (X)$. The mass split of the $\Xi$ doublet is measured to be $5.4\pm 1.8$ MeV/c$^2$, consistent with…

Nuclear Experiment · Physics 2019-08-14 L. Guo , D. P. Weygand , M. Battaglieri , R. De Vita , V. Kubarovsky , P. Stoler

The $\bar{K} + N \to K + \Xi$ reaction is studied for center-of-momentum energies ranging from threshold to 3 GeV in an effective Lagrangian approach that includes the hyperon $s$- and $u$-channel contributions as well as a phenomenological…

Nuclear Theory · Physics 2015-06-29 Benjamin C. Jackson , Yongseok Oh , H. Haberzettl , K. Nakayama

In this talk, we investigate $\Xi(1690)^-$ production from the $K^-p\to K^+K^-\Lambda$ reaction wit the effective Lagrangian method and consider the $s$- and $u$-channel $\Sigma/\Lambda$ ground states and resonances for the $\Xi$-pole…

High Energy Physics - Phenomenology · Physics 2020-01-08 Seung-il Nam , Jung Keun Ahn

The photoproduction reaction $\gamma N \to K K \Xi$ is investigated based on a relativistic meson-exchange model of hadronic interactions. The production amplitude is calculated in the tree-level approximation from relevant effective…

High Energy Physics - Phenomenology · Physics 2008-11-26 K. Nakayama , Yongseok Oh , H. Haberzettl

The productions of the exotic states $ X_0(2900) $ and $ X_1(2900) $ in $K^{+}p \to \Sigma_{c}^{++}X_{0}(2900)$ and $K^{+}p \to \Sigma_{c}^{++}X_{1}(2900)$ reactions are studied within an effective Lagrangian approach. The $t-$channel Born…

High Energy Physics - Phenomenology · Physics 2022-11-30 Qing-Yong Lin , Xiao-Yun Wang

Using a previously established effective Lagrangian model we describe anti-kaon induced reactions on the nucleon. The dominantly contributing channels in the cm-energy region from threshold up to 1.72 GeV are included (K N, \pi \Sigma, \pi…

Nuclear Theory · Physics 2011-07-19 M. Th. Keil , G. Penner , U. Mosel

We present a measurement of the production of $\Xi^-$ and $\Lambda\Lambda$ in the $^{12}$C$(K^-, K^+)$ reaction at an incident beam momentum of 1.8 GeV/$\mathit{c}$, based on high-statistics data from J-PARC E42. The cross section for the…

We study the mechanism of the associated Lambda-kaon and Sigma-kaon production in nucleon-nucleon collisions over an extended range of near threshold beam energies within an effective Lagrangian model, to understand of the new data on pp…

Nuclear Theory · Physics 2009-11-11 Radhey Shyam

The elementary production cross sections $\pi \Delta \rightarrow Y K$ $(Y=\Sigma,\,\, \Lambda)$ and $\pi N \rightarrow Y K$ are needed to describe kaon production in heavy ion collisions. The $\pi N \rightarrow Y K$ reactions were studied…

Nuclear Theory · Physics 2009-10-28 K. Tsushima , S. W. Huang , Amand Faessler

We extend our recent non-perturbative chiral SU(3) coupled channel approach to pion- and photon-induced $\eta$- and $K$-meson production off protons by including all strong and electromagnetic p-wave multipoles. We identify the p-wave…

Nuclear Theory · Physics 2009-10-31 J. Caro Ramon , N. Kaiser , S. Wetzel , W. Weise

The $\Lambda(1405)$ resonance production reaction is investigated within the framework of the coupled-channels Alt-Grassberger-Sandhas (AGS) equations. We perform full three-body calculations for the $\bar{K}NN-\pi YN$ amplitudes on the…

Nuclear Theory · Physics 2016-03-08 Shota Ohnishi , Yoichi Ikeda , Tetsuo Hyodo , Wolfram Weise

We investigate the reaction mechanism of strangeness production in $K^- p \to \phi \Lambda$ within a hybrid Regge approach, taking into account $t$-channel $K$- and $K^*$-Reggeon exchanges. We present results for the total cross section,…

High Energy Physics - Phenomenology · Physics 2026-02-03 Sang-Ho Kim

We study the production of $\Xi^-$-hypernuclei, $^{12}_{\Xi^{-}}$Be and $^{28}_{\Xi^{-}}$Mg, via the ($K^-,K^+$) reaction within a covariant effective Lagrangian model, employing the bound $\Xi^-$ and proton spinors calculated by the latest…

Nuclear Theory · Physics 2015-06-11 K. Tsushima , R. Shyam , A. W. Thomas
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