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相关论文: Role of $K^*_0(700)$ exchange in the $p \bar{p} \t…

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The role of the $\Lambda(1670)$ resonance in the $\gamma p \to K^+ \eta \Lambda$ reaction near threshold is studied within an effective Lagrangian approach. We perform a calculation for the total and differential cross section of the…

核理论 · 物理学 2015-12-08 Li-Ye Xiao , Qi-Fang Lü , Ju-Jun Xie , Xian-Hui Zhong

Role of the $\Lambda(1600)$ is studied in the $K^- p \to \Lambda \pi^0 \pi^0$ reaction by using the effective Lagrangian approach near the threshold. We perform a calculation for the total and differential cross sections by considering the…

高能物理 - 唯象学 · 物理学 2020-04-09 He Zhou , Ju-Jun Xie

We investigate the $K^- p \to \gamma \Sigma$ reaction using an effective Lagrangian approach within an isobar model framework. The model includes contributions from $s$-channel hyperon and hyperon resonance, $t$-channel $K$ and $K^*$,…

高能物理 - 唯象学 · 物理学 2025-11-18 Yi Pan , Bo-Chao Liu

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…

高能物理 - 唯象学 · 物理学 2022-04-08 Neng-Chang Wei , Ai-Chao Wang , Fei Huang

We investigate the two-body reaction $\pi^- p \to K^{0} \Lambda$ within the effective Lagrangian approach and the isobar model. In addition to the "background" contributions from $t$-channel $K^*$ exchange, $u$-channel $\Sigma(1192)$ and…

核理论 · 物理学 2015-11-30 Cheng-Zu Wu , Qi-Fang Lü , Ju-Jun Xie , Xu-Rong Chen

The high-precision differential cross-section data for the reaction $\gamma p \to K^{*+}\Lambda$ are reanalyzed within a Regge-inspired effective Lagrangian approach. The model adopts Regge phenomenology to constrain the $t$-channel…

核理论 · 物理学 2020-07-10 Ai-Chao Wang , Fei Huang , Wen-Ling Wang , Guang-Xiong Peng

We report on a theoretical study of the $K^- p \to \eta \Lambda$ reaction near threshold by using an effective Lagrangian approach. The role of $s-$channel $\Lambda(1670)$, $t-$channel $K^*$ and $u-$channel proton pole diagrams are…

核理论 · 物理学 2015-06-03 Bo-Chao Liu , Ju-Jun Xie

The processes of $K^-p \to \pi^0 \pi^0 \Sigma^0$ and $K^- p \to \pi^0 \Lambda(1405)$ are studied within the effective Lagrangian approach. In addition to the ``background" contribution from the $u$-channel nucleon pole term, contribution…

高能物理 - 唯象学 · 物理学 2026-01-08 Xing-Yi Ji , Si-Wei Liu , Wen-Tao Lyu , De-Min Li , En Wang , Ju-Jun Xie

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 report on a theoretical study of the $\pi^- p \to D^- D^0 p$ reaction near threshold within an effective Lagrangian approach. The production process is described by $t$ channel $D^{*0}$ meson exchange, $s$-channel nucleon pole, and $u$…

高能物理 - 唯象学 · 物理学 2015-11-23 Ju-Jun Xie , Yu-Bing Dong , Xu Cao

We investigate the productiong of $f_2(1270)$ and $f_2^{'}(1525)$ mesons in the $K^{-}p\to\Lambda{}f_2(1270)$,$K^{-}p\to\Lambda{}f^{'}_2(1525)$ and $K^{-}p\to{}K^{+}K^{-}\Lambda$ reactions within an effective Lagrangian approach. For…

高能物理 - 唯象学 · 物理学 2016-06-16 Yin Huang , Ju-jun Xie , Jun He , Xurong Chen , Hong-fei Zhang

A chiral quark-model approach is extended to the study of the $\bar{K}N$ scattering at low energies. The process of $K^-p\to \Sigma^0\pi^0$ at $P_K\lesssim 800$ MeV/c (i.e. the center mass energy $W\lesssim 1.7$ GeV) is investigated. This…

核理论 · 物理学 2009-12-31 Xian-Hui Zhong , Qiang Zhao

A comprehensive analysis of all available data on cross sections and spin-dependent observables for the $\gamma p \to K^+ \Sigma^0(1385)$, $\gamma n \to K^+ \Sigma^-(1385)$, and $\pi^+ p \to K^+ \Sigma^+(1385)$ reactions is performed within…

高能物理 - 唯象学 · 物理学 2025-03-21 Ai-Chao Wang , Neng-Chang Wei , Fei Huang

In our previous work [Phys. Rev. C 101, 014003 (2020)], the photoproduction reaction $\gamma p \to K^{\ast +} \Lambda$ has been investigated within an effective Lagrangian approach. There, the reaction amplitudes were constructed by…

高能物理 - 唯象学 · 物理学 2022-02-08 Neng-Chang Wei , Yi-Ming Zhu , Fei Huang

The production of the $f_1(1285)$ resonance in the reaction of $K^- p \to f_1(1285) \Lambda$ is studied within an effective Lagrangian approach. The production process is described by the $t$ channel $K^{*+}$ meson exchange. My theoretical…

核理论 · 物理学 2016-01-05 Ju-Jun Xie

We investigate the $\Lambda(1520)$ hadronic production in the $p p \to p K^+ \Lambda(1520)$ and $\pi^- p \to K^0 \Lambda(1520)$ reactions within the effective Lagrangian method. For $\pi^- p \to K^0 \Lambda(1520)$ reaction, in addition to…

核理论 · 物理学 2015-06-12 Ju-Jun Xie , Bo-Chao Liu

We investigate the $\gamma p \to \phi K^+ \Lambda$ reaction near threshold within an effective Lagrangian approach and the isobar model. Various nucleon resonances caused by the $\pi$ and $\eta$ meson exchanges and background contributions…

核理论 · 物理学 2015-12-02 Qi-Fang Lü , Rong Wang , Ju-Jun Xie , Xu-Rong Chen , De-Min Li

We analyze the recent total cross section data for $pp \to p\Lambda K^+$ near threshold measured at COSY. Using an effective range approximation for the on-shell $p\Lambda$ S-wave final state interaction we extract from these data the…

核理论 · 物理学 2009-10-31 N. Kaiser

We study the production of hyperon resonances in the $p\bar{p}\to\bar{\Lambda}\Sigma\eta$ reaction within an effective Lagrangian approach. The model includes the production of $\Sigma(1750)$ and $\Lambda(1670)$ in the intermediate state…

高能物理 - 唯象学 · 物理学 2024-11-13 Aojia Xu , Ruitian Li , Xuan Luo , Hao Sun

We conducted a theoretical study on the process $\Sigma^{+} p \to\Lambda a_0^{+} p$ based on an effective Lagrangian approach. This model encompasses the excitation of intermediate states leading to the production of $\Delta(1920)$ through…

高能物理 - 唯象学 · 物理学 2024-10-18 Yan Dai , Aojia Xu , Gang Li , Mao Song , Xuan Luo
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