English
Related papers

Related papers: Further understanding the nature of $\Omega(2012)$…

200 papers

Following the work of Capstick and Isgur [\href{https://doi.org/10.1103/PhysRevD.34.2809}{Phys.~Rev.~D~34,~2809~(1986)}], we systematically study the mass spectrum of the heavy baryons in the relativized quark potential model with…

High Energy Physics - Phenomenology · Physics 2024-10-01 Xin-Zhen Weng , Wei-Zhen Deng , Shi-Lin Zhu

We evaluate static properties and semileptonic decays for the ground state of doubly heavy $\Xi, \Xi', \Xi^*$ and $\Omega, \Omega', \Omega^*$ baryons. Working in the framework of a nonrelativistic quark model, we solve the three--body…

High Energy Physics - Phenomenology · Physics 2008-11-26 C. Albertus , E. Hernandez , J. Nieves , J. M. Verde-Velasco

The hadronic two-body weak decays of the doubly charmed baryons $\Xi_{cc}^{++}, \Xi_{cc}^+$ and $\Omega_{cc}^+$ are studied in this work. To estimate the nonfactorizable contributions, we work in the pole model for the $P$-wave amplitudes…

High Energy Physics - Phenomenology · Physics 2020-03-04 Hai-Yang Cheng , Guanbao Meng , Fanrong Xu , Jinqi Zou

In this work we systematically study both the mass spectra and strong decays of the nucleon and $\Delta$ resonances up to the $N=2$ shell within a unified quark model framework with chiral dynamics. In this framework we achieve a good…

High Energy Physics - Phenomenology · Physics 2024-09-20 Hui-Hua Zhong , Ming-Sheng Liu , Ru-Hui Ni , Mu-Yang Chen , Xian-Hui Zhong , Qiang Zhao

We investigate the singly and doubly charmful two-body $\Omega_b^-$ decays using the light-front quark model. Our findings reveal that most branching fractions calculated in this study, such as ${\cal B}(\Omega_b^-\to\Xi^-…

High Energy Physics - Phenomenology · Physics 2025-05-13 Yan-Li Wang , Yu-Kuo Hsiao , Kai-Lei Wang , Chong-Chung Lih

We present an unitary dispersive model for the $\eta \to 3 \pi$ decay process based upon the Khuri-Treiman equations which are solved by means of the Pasquier inversion method. The description of the hadronic final-state interactions for…

High Energy Physics - Phenomenology · Physics 2016-08-08 Peng Guo , Igor V. Danilkin , Diane Schott , C. Fernández-Ramírez , V. Mathieu , Adam P. Szczepaniak

We study the doubly charmful two-body and three-body baryonic B decays $\bar B\to \Lambda_c^+\bar \Lambda_c^-$ and $\bar B\to \Lambda_c^+\bar \Lambda_c^- \bar K$. As pointed out before, a naive estimate of the branching ratio ${\cal…

High Energy Physics - Phenomenology · Physics 2009-06-30 Hai-Yang Cheng , Chun-Khiang Chua , Yu-Kuo Hsiao

Inspired by the newly observed $\Omega_b$ states by the LHCb Collaboration, we investigate the two-body strong decays of the low-lying $\lambda$-mode $\Omega_b$ baryons up to $N=2$ shell using the chiral quark model within the $j$-$j$…

High Energy Physics - Phenomenology · Physics 2020-04-22 Li-Ye Xiao , Kai-Lei Wang , Ming-Sheng Liu , Xian-Hui Zhong

Inspired by the newly observed $\Xi_c^0$ states by the LHCb Collaboration, we investigate the OZI-allowed two-body strong decays of the $\lambda$-mode $1P$ wave $\Xi'_c$ states within the chiral quark model. Our results indicate that: (i)…

High Energy Physics - Phenomenology · Physics 2020-09-02 Kai-Lei Wang , Li-Ye Xiao , Xian-Hui Zhong

We have systematically calculated the strong decays of the low-lying $\rho$-mode $1P$-wave $\Lambda_{c(b)}$, $\Sigma_{c(b)}$, $\Xi_{c(b)}$, $\Xi^{'}_{c(b)}$, $\Omega_{c(b)}$ baryons using the chiral quark model within the $j$-$j$ coupling…

High Energy Physics - Phenomenology · Physics 2022-08-23 Wen-Jia Wang , Li-Ye Xiao , Xian-Hui Zhong

In this work, we systematically study the mass spectrum of the fully heavy tetraquark in an extended chromomagnetic model, which includes both color and chromomagnetic interactions. Numerical results indicate that the energy level is mainly…

High Energy Physics - Phenomenology · Physics 2021-02-02 Xin-Zhen Weng , Xiao-Lin Chen , Wei-Zhen Deng , Shi-Lin Zhu

We study the two-body hadronic weak decays of the $\Omega^-$ hyperon with strangeness $S=-3$, including three singly Cabibbo-suppressed decay modes: $\Xi^0 \pi^-$, $\Xi^-\pi^0$ and $\Lambda K^-$. The decay amplitudes at the quark level,…

High Energy Physics - Phenomenology · Physics 2026-02-02 Ye Cao , Tao Zhong , Ju-Jun Xie , Qiang Zhao

In the present work we investigate the mass spectrum and semileptonic decays of double charm and bottom baryon states using the hypercentral quark model. We solve the six-dimensional Schr\"odinger equation via deep learning and particle…

High Energy Physics - Phenomenology · Physics 2025-04-08 Zahra Ghalenovi , Masoumeh Moazzen Sorkhi , Amir Hossein Sovizi

We study the weak decay $\Omega_b^- \to (\Xi_c^+ \, K^-) \, \pi^-$, in view of the narrow $\Omega_c$ states recently measured by the LHCb collaboration and later confirmed by the Belle collaboration. The $\Omega_c(3050)$ and…

High Energy Physics - Phenomenology · Physics 2018-12-04 V. R. Debastiani , J. M. Dias , Wei-Hong Liang , E. Oset

Very recently, the LHCb collaboration has observed in the final state $\Lambda_c^+ K^-\pi^+\pi^+$ a resonant structure that is identified as the doubly-charmed baryon $\Xi_{cc}^{++}$. Inspired by this observation, we investigate the weak…

High Energy Physics - Phenomenology · Physics 2017-11-27 Wei Wang , Fu-Sheng Yu , Zhen-Xing Zhao

Using the resonating group method (RGM), we dynamically study the baryon-meson interactions in chiral quark model. Some interesting results are obtained: (1) The Sigma K state has an attractive interaction, which consequently results in a…

Nuclear Theory · Physics 2017-08-23 F. Huang , Z. Y. Zhang , Y. W. Yu

The strong and radiative decays of the low-lying $\lambda$-mode $D$-wave $\Lambda_{c(b)}$, $\Sigma_{c(b)}$, $\Xi_{c(b)}$, $\Xi_{c(b)}'$, and $\Omega_{c(b)}$ baryons are studied in a constituent quark model. Our calculation shows the…

High Energy Physics - Phenomenology · Physics 2018-10-31 Ya-Xiong Yao , Kai-Lei Wang , Xian-Hui Zhong

Inspired by the recent observation of a very narrow state, called $T_{cc}^+$, by the LHCb collaboration, the possible bound states and low-lying resonance states of the doubly heavy tetraquark states $cc\bar{u}\bar{d}$ ($T_{cc}$) and…

High Energy Physics - Phenomenology · Physics 2022-05-11 Xiaoyun Chen

The Omega-Omega (SIJ=-6,0,0) dibaryon state is studied with the extended quark-delocalization color-screening model including a pi meson exchange tail, which reproduces the properties of the deuteron quantitatively. We find the mass of the…

Nuclear Theory · Physics 2008-11-26 Hourong Pang , Jialun Ping , Fan Wang , T. Goldman

The newly-discovered $\Xi_{cc}^{++}$ decays into the $ \Lambda_{c}^+ K^-\pi^+\pi^+$, but the experimental data has indicated that this decay is not saturated by any two-body intermediate state. In this work, we analyze the multi-body weak…

High Energy Physics - Phenomenology · Physics 2018-01-26 Yu-Ji Shi , Wei Wang , Ye Xing , Ji Xu