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相关论文: Electroproduction of $\Lambda(1520)$ off the nucle…

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We investigate K*{\Lambda}(1116) photoproduction off the proton and neutron targets in the effective Lagrangian method in the tree-level Born approximation. In addition to the K, K*, and {\kappa} exchanges which are the main contributions…

高能物理 - 唯象学 · 物理学 2015-06-03 Sang-Ho Kim , Seung-il Nam , Yongseok Oh , Hyun-Chul Kim

We study the reaction mechanism of K*Lambda(1116) photoproduction off the proton target near threshold considering the contributions from nucleon-resonances. Employing the effective Lagrangian method at the tree-level Born approximation, we…

高能物理 - 唯象学 · 物理学 2015-05-30 Sang-Ho Kim , Seung-il Nam , Yongseok Oh , Hyun-Chul Kim

In this work the roles of the nucleon resonances in the $\Lambda$(1520) photoproduction off proton target are investigated within the effective Lagrangian method. Besides the Born terms,including contact term, $s$-, $u$- and $K$ exchanged…

核理论 · 物理学 2015-04-27 Jun He , Xu-Rong Chen

We investigate the Lambda(1520,3/2^-)=Lambda* photoproduction off the proton target with the Regge contributions to go beyond the resonance region, in addition to the tree-level Born terms consisting of the s, t, and u channels, and contact…

高能物理 - 唯象学 · 物理学 2014-11-20 Sueng-il Nam , Chung-Wen Kao

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…

高能物理 - 唯象学 · 物理学 2020-01-08 Sang-Ho Kim , Hyun-Chul Kim

In this presentation, we report our recent studies on the $K^*\Lambda(1116)$ photoproduction off the proton target, using the tree-level Born approximation, via the effective Lagrangian approach. In addition, we include the nine (three- or…

高能物理 - 唯象学 · 物理学 2015-05-27 Sang-Ho Kim , Seung-il Nam , Yongseok Oh , Hyun-Chul Kim

We investigate kaon photoproduction off the neutron target, i.e., $\gamma n \to K^0 \Lambda$, focusing on the role of nucleon resonances given in the Review of Particle Data Group in the range of $\sqrt{s} \approx 1600 - 2200$ MeV. We…

高能物理 - 唯象学 · 物理学 2018-10-17 Sang-Ho Kim , Hyun-Chul Kim

We investigate the photoproduction of K*0Sigma+ and K*+Sigma0 off the proton target, employing the effective Lagrangian approach at the tree-level Born approximation. In addition to the (s, t, u)-channel Born diagrams, we take into account…

高能物理 - 唯象学 · 物理学 2015-06-12 Sang-Ho Kim , Seung-il Nam , Atsushi Hosaka , Hyun-Chul Kim

We study the photo- and electro-productions of the vector kaon off the proton, i.e., $\gamma^{(*)}p\to K^{*+}\pi^0\Sigma^0$, and investigate the line shape of the $\pi^0\Sigma^0$ invariant mass in an effective Lagrangian approach with the…

高能物理 - 唯象学 · 物理学 2019-07-31 Seung-il Nam , Atsushi Hosaka

Inspired by the preliminary experimental data by the CLAS Collaboration, the $K^{\ast 0}\Lambda$ photoproduction off a neutron is studied within an effective Lagrangian approach. The contributions from the Born terms including $s$, $u$, and…

核理论 · 物理学 2016-03-23 Xiao-Yun Wang , Jun He

Based on the high precision experimental data released by the CLAS Collaboration recently, the interaction mechanism of the photoproduction of $\Lambda$(1520) off a proton target is investigated within a Regge-plus-resonance approach. With…

核理论 · 物理学 2014-05-07 Jun He

We investigate the photoproduction of $\Lambda(1405)\equiv\Lambda^*$ hyperon resonance, i.e., $\gamma p\to K^+\Lambda^*$, employing the effective Lagrangian approach with the $t$-channel Regge trajectories at tree level. We extensively…

高能物理 - 唯象学 · 物理学 2017-07-19 Sang-Ho Kim , Seung-il Nam , Daisuke Jido , Hyun-Chul Kim

We investigate the K* Lambda(1116) photoproduction off the proton target, employing the tree-level Born approximation within the effective Lagrangian approach. We take into account the kappa, K, and K* exchanges in the t channel in addition…

高能物理 - 唯象学 · 物理学 2012-06-20 Seung-il Nam , Byung-Geel Yu

We investigate the Lambda(1520) photoproduction via the reaction process, gamma N -> K Lambda(1520). We employ the Born approximation and the Rarita Schwinger formalism is used for Lambda(1520). We reproduce the total cross sections and the…

高能物理 - 唯象学 · 物理学 2007-05-23 Seung-Il Nam , Atsushi Hosaka , Hyun-Chul Kim

We study the reaction mechanism for the photoproduction of the Lambda(1520), based on an effective Lagrangian approach. We investigate each contribution of the s-, u-, t-channel processes and contact term, separately. One of the most…

高能物理 - 唯象学 · 物理学 2008-11-26 Seung-il Nam , Ki-Seok Choi , Atsushi Hosaka , Hyun-Chul Kim

In this work, we perform a \textit{toy-model} analysis for the unpolarized photo- and electroproduction of $\Lambda(1405)\equiv\Lambda^*$ via $\gamma^{(*)}p\to K^+\pi^+\Sigma^-$ by employing the effective Lagrangian approach at the tree…

高能物理 - 唯象学 · 物理学 2017-11-22 Seung-il Nam

We investigate photoproduction of $\phi$-mesons off protons within a coupled-channel effective-Lagrangian method which is based on the K-matrix approach. Since the threshold energy of the $K\Lambda(1520)$ channel is close to that of $\phi…

高能物理 - 唯象学 · 物理学 2014-11-18 S. Ozaki , H. Nagahiro , A. Hosaka , O. Scholten

Photoproduction of the $\Lambda^*(1520)$ resonance of spin-parity ${3\over2}^-$ off the proton target is investigated within the Regge framework where the $t$-channel reggeization is applied for the $K(494)+K^*(892)+K_2^*(1430)$ exchanges…

核理论 · 物理学 2020-06-26 Byung-Geel Yu , Kook-Jin Kong

The data on differential cross sections and photon-beam asymmetries for the $\gamma p \to K^+\Lambda(1520)$ reaction have been analyzed within a tree-level effective Lagrangian approach. In addition to the $t$-channel $K$ and $K^\ast$…

高能物理 - 唯象学 · 物理学 2021-02-12 Neng-Chang Wei , Yu Zhang , Fei Huang , De-Min Li

We reinvestigate $K^*\Lambda(1116)$ photoproduction off the nucleon target, based on an effective Lagrangian approach. We include higher nucleon resonances such as $N(2000)\, 5/2^+$, $N(2060)\,5/2^-$, $N(2120)\,3/2^-$, and $N(2190)\,7/2^-$,…

高能物理 - 唯象学 · 物理学 2015-06-18 Sang-Ho Kim , Atsushi Hosaka , Hyun-Chul Kim
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