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Related papers: $\Xi$(2030) and $\Xi$(2120) as $\bar{K}^*\Sigma$ m…

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Within the framework of the one-boson-exchange model, we systematically investigate the interaction between the vector meson $K^{*}$ and the baryon $\Sigma^{*}$ with the aim of exploring the possibility of forming hadronic molecular states.…

High Energy Physics - Phenomenology · Physics 2026-04-27 Yin Huang , Dan Jiang , Feng Zhang , Bo Nan Zhang

Currently, there is much controversy surrounding the interpretation of the $\Xi(2030)$ and $\Xi(2012)$ as traditional hadrons containing double strange quarks. In particular, the ratios of the partial decay widths into $\Lambda\bar{K}$ and…

High Energy Physics - Phenomenology · Physics 2023-10-20 Hao Hei , Yin Huang

In this work, the $K\bar{K}^*$ interaction is studied in a quasipotential Bethe-Salpeter equation approach combined with the one-boson-exchange model. With the help of the hidden-gauge Lagrangian, the exchanges of pseudoscalar mesons ($\pi$…

High Energy Physics - Phenomenology · Physics 2017-02-01 Pei-Liang Lü , Jun He

Inspired by the newly observed $X_{0}(2900)$ and $X_1(2900)$ at LHCb, the $K^*\bar{D}^*$ and $K\bar{D}_1$ interactions are studied in the quasipotential Bethe-Salpeter equation approach combined with the one-boson-exchange model. The bound…

High Energy Physics - Phenomenology · Physics 2021-07-07 Jun He , Dian-Yong Chen

Since its discovery in 1977, the spin-parity of $\Xi(2030)$ has not been fully determined experimentally. The latest Particle Data Group (PDG) listing suggests it may be a baryon with $J=5/2$. Therefore, studying the mass spectrum and decay…

High Energy Physics - Phenomenology · Physics 2024-09-20 Jing-wen Feng , Cai Cheng , Yin Huang

We investigate the possibility of deuteron-like $\Sigma_c^*\bar{\Sigma}$ bound states within the one-boson-exchange model and systematically analyze the effects of the contact-range $\delta^{3}(\vec{r}\,)$ potential, the tensor term from…

High Energy Physics - Phenomenology · Physics 2024-05-03 Bing Wu , Xiang-Kun Dong , Feng-Kun Guo , Bing-Song Zou

In this work, the $\Omega_c$-like molecular states are systematically investigated in a quasipotential Bethe-Salpeter equation approach. The relevant interactions $\Xi_c^{(*,')}\bar{K}^{(*)}$, $\Xi^{(*)}D^{(*)}$, and…

High Energy Physics - Phenomenology · Physics 2022-06-08 Jun-Tao Zhu , Shu-Yi Kong , Lin-Qing Song , Jun He

The newly observed $\Xi(1620)^0$ by the Belle Collaboration inspires our interest in performing a systematic study on the interaction of an anti-strange meson $(\bar{K}^{(*)})$ with a strange or doubly strange ground octet baryon…

High Energy Physics - Phenomenology · Physics 2019-10-14 Kan Chen , Rui Chen , Zhi-Feng Sun , Xiang Liu

In this work, we investigate the $S$- and $P$-wave interactions of the $D\bar{D}^*$ system within the framework of the quasipotential Bethe-Salpeter equation, with the aim of exploring possible molecular states and their corresponding pole…

High Energy Physics - Phenomenology · Physics 2025-07-14 Xiao-Xiao Chen , Zuo-Ming Ding , Jun He

Recently, a hint for dibaryon $N\Delta(D_{21})$ was observed at WASA-AT-COSY with a mass about $30\pm10$ MeV below the $N\Delta$ threshold. It has a relatively small binding energy compared with the $d^*(2380)$ and a width close to the…

Nuclear Theory · Physics 2020-10-21 Zhi-Tao Lu , Han-Yu Jiang , Jun He

In this manuscript we discuss the results of our recent study on $\Xi$ resonances. We have studied meson-baryon interaction with strangeness $-2$ by solving scattering equations in a coupled channel approach and found that the dynamics…

High Energy Physics - Phenomenology · Physics 2017-12-29 K. P. Khemchandani , A. Martínez Torres , A. Hosaka , H. Nagahiro , F. S. Navarra , M. Nielsen

In this work, we assume that the observed state $\Xi(1620)$ is a $s$-wave $\Lambda\bar{K}$ or $\Sigma\bar{K}$ bound state. Based on this molecule picture, we establish the Bethe-Salpeter equations for $\Xi(1620)$ in the ladder and…

High Energy Physics - Phenomenology · Physics 2019-09-04 Zhen-Yang Wang , Jing-Juan Qi , Jing Xu , Xin-Heng Guo

In this work the $B\bar{B}^*/D\bar{D}^*$ system is studied in the Bethe-Salpeter approach with quasipotential approximation. In our calculation both direct and cross diagrams are included in the one-boson-exchange potential. The numerical…

High Energy Physics - Phenomenology · Physics 2014-10-27 Jun He

In this work, we propose a possible assignment of the newly observed $X(2239)$, as well as the $\eta(2225)$, as a molecular state from the interaction of a baryon $\Lambda$ and an antibaryon $\bar{\Lambda}$. With the help of effective…

High Energy Physics - Phenomenology · Physics 2020-10-16 Jun-Tao Zhu , Yi Liu , Dian-Yong Chen , Longyu Jiang , Jun He

In this work, we systematically investigate the two-pseudoscalar meson systems with the Bethe-Salpeter equation in the ladder and instantaneous approximations. By solving the Bethe-Salpeter equation numerically with the kernel containing…

High Energy Physics - Phenomenology · Physics 2022-12-14 Zi-Long Li , Xing-Yue Tan , Zhu-Feng Zhang , Zhen-Yang Wang , Xin-Heng Guo

In this article, we take the X(1835) as a pseudoscalar baryonium state, and calculate the mass spectrum of the baryon-antibaryon bound states $p\bar{p}$, $\Sigma\bar{\Sigma}$, $\Xi\bar{\Xi}$, and $\Lambda\bar{\Lambda}$ in the framework of…

High Energy Physics - Phenomenology · Physics 2014-11-21 Zhi-Gang Wang

We show that a $\Xi ^{\ast}$ pole can be dynamically generated near the $\bar{K} \Sigma$ threshold as an $s$-wave $\bar{K} \Sigma$ molecular state in a coupled-channels unitary approach with the leading-order chiral interaction. This $\Xi…

High Energy Physics - Phenomenology · Physics 2015-09-30 Takayasu Sekihara

In this work we study several $\Xi_c$ and $\Xi_b$ states dynamically generated from the meson-baryon interaction in coupled channels, using an extension of the local hidden gauge approach in the Bethe-Salpeter equation. These molecular…

High Energy Physics - Phenomenology · Physics 2019-03-27 Q. X. Yu , R. Pavao , V. R. Debastiani , E. Oset

Stimulated by the observations of recent observation of $\Omega_c$ as well as former one of $P_c(4380)$ and $P_c(4450)$, we perform a coupled channel analysis of…

High Energy Physics - Phenomenology · Physics 2018-02-21 Rui Chen , Xiang Liu , Atsushi Hosaka

In this work, a study of possible molecular states from the $\Lambda_c\bar{\Lambda}_c$ interaction and their productions in nucleon-antinucleon collision is performed in a quasipotential Bethe-Salpeter equation approach. Two bound states…

High Energy Physics - Phenomenology · Physics 2023-01-04 Lin-Qing Song , Dan Song , Jun-Tao Zhu , Jun He
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