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相关论文: The $\phi(2170)$ production in the process $\gamma…

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We have studied the $\gamma p\to \eta \phi p$ reaction within the effective Lagrangian approach, by considering the contribution of the intermediate state $\phi(2170)$ production, and the background contributions of $t$-channel $\pi^0$ and…

高能物理 - 唯象学 · 物理学 2019-06-26 Chen-Guang Zhao , Guan-Ying Wang , Guan-Nan Li , En Wang , De-Min Li

In this work, we perform a study of nucleon resonance production in the $\gamma p \to p\eta\phi$ reaction within an effective Lagrangian approach. In our model, we consider the excitation of the $N^*(1535)$, $N^*(1650)$, $N^*(1710)$ and…

高能物理 - 唯象学 · 物理学 2019-02-20 Jin-Quan Fan , Shao-Fei , Chen , Bo-Chao Liu

We investigate the $\bar{p} p \to \phi \phi$ reaction within an effective Lagrangian approach.We show that the inclusion of either a scalar meson $f_0$ or a tensor meson $f_2$ in the $s$-channel can lead to a fairly good description of the…

核理论 · 物理学 2014-11-20 Ju-Jun Xie , Li-Sheng Geng , Xu-Rong Chen

The production of the $f_1(1285)$ resonance in the reaction of $\gamma p \rightarrow f_1(1285) p$ is investigated within a Regge-effective Lagrangian approach. Besides the contributions of the $t$-channel $\rho$ and $\omega$ trajectories…

高能物理 - 唯象学 · 物理学 2017-06-07 Yan-Yan Wang , Li-Juan Liu , En Wang , De-Min Li

We investigate the production of $\phi(2170)$ state in the $e^+e^- \to \phi \pi^+\pi^-$ reaction with the effective Lagrangian approach. In addition to the tree level contributions from the $\phi(1680)$ meson and a possible X(1750) state,…

高能物理 - 唯象学 · 物理学 2025-09-25 Xiang Wei , Qing-Hua Shen , Xiao-Hai Liu , Ju-Jun Xie

In this work, the production of baryon resonances in the $\gamma p \to \phi \pi p$ reaction near threshold is investigated within an effective Lagrangian approach. incorporates intermediate resonances, including $\Delta(1232)$, $N(1440)$,…

核理论 · 物理学 2025-09-18 Ya-Ke Chen , Yi Pan , 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 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

The $\eta$-meson production in photon- and hadron-induced reactions, namely, $\gamma p \to p \eta$, $\pi^- p \to n \eta$, $pp \to pp\eta$, and $pn \to pn\eta$, are investigated in a combined analysis in order to learn about the relevant…

高能物理 - 唯象学 · 物理学 2015-05-13 K. Nakayama , Yongseok Oh , H. Haberzettl

We investigate the $J/\psi \phi$ invariant mass distribution of the $e^+e^-\to \gamma J/\psi\phi$ reaction at a center of mass energy of $\sqrt{s}=4.6$~GeV measured by the BESIII collaboration, who concludes that no significant signals are…

高能物理 - 唯象学 · 物理学 2020-01-08 En Wang , Ju-Jun Xie , Li-Sheng Geng , Eulogio Oset

We investigate the pp --> pp eta and pn --> pn eta reactions within an effective Lagrangian model for laboratory kinetic energies ranging from very close to eta meson production threshold to about 10 GeV. Production amplitudes include…

核理论 · 物理学 2008-11-26 R. Shyam

In this work, we study the production of strange quarkoniums, the $\phi(2170)$, also named $Y(2175)$, and the $\eta(2225)$, via a kaon induced reaction on a proton target in an effective Lagrangian approach. The total and differential cross…

核理论 · 物理学 2019-09-18 Xiao-Yun Wang , Jun He

We study the production of hyperon resonances in the $\pi^+p\to pa_0^+\phi$ reaction within an effective Lagrangian approach. The model includes the production of $\Delta(1940)$ and $\Delta(1920)$ in the intermediate state excited by the…

高能物理 - 唯象学 · 物理学 2024-08-27 Aojia Xu , Ruitian Li , Xuan Luo , Hao Sun

The $\eta \pi^{-}$ system has been studied in the reaction $\pi^{-} p \to \eta \pi^{-} p$ at 18 GeV/c. A large asymmetry in the angular distribution is observed indicating interference between L-even and L-odd partial waves. The…

高能物理 - 实验 · 物理学 2012-08-27 The E852 Collaboration

Within an effective Lagrangian approach, we investigate the reaction mechanism of $K^- p\to \eta\Lambda$ near threshold. It is found that a new $D_{03}$ resonance, with mass $M=1668.5\pm 0.5$MeV and width $\Gamma=1.5\pm0.5$MeV, is needed to…

高能物理 - 唯象学 · 物理学 2015-06-12 Bo-Chao Liu , Ju-Jun Xie

We report on a study of the reaction, $\gamma p \to p \pi^+\pi^+\pi^-\pi^-\pi^0$, at an incident photon energy of 19.3 GeV. The most significant feature of this reaction is $\Delta^{++}$ production which occurs with a cross section of…

高能物理 - 实验 · 物理学 2007-05-23 G. R. Blackett , K. Danyo , T. Handler , M. Pisharody , G. T. Condo

The $\gamma p \to \phi \eta p$ reaction is studied in the kinematic region where the $\eta p$ final state originates dominantly from the decay of the N*(1535) resonance. The threshold laboratory photon energy for this reaction (at the peak…

核理论 · 物理学 2008-11-26 Matthias F. M. Lutz , Madeleine Soyeur

The production of eta' mesons in photon- and hadron-induced reactions has been revisited in view of the recent additions of high-precision data to the world data base. Based on an effective Lagrangian approach, we have performed a combined…

核理论 · 物理学 2015-03-20 F. Huang , H. Haberzettl , K. Nakayama

Motivated by the ongoing analysis by the BESIII Collaboration on the single-tagged $e^+e^-\to e^+e^- \eta \pi^+\pi^-$ reaction, we present a phenomenological study of the diphoton fusion to $\eta \pi^+ \pi^-$, focusing on the production…

高能物理 - 唯象学 · 物理学 2024-11-22 Xiu-Lei Ren , Igor Danilkin , Marc Vanderhaeghen
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