Zobrazeno 1 - 10
of 209
pro vyhledávání: '"Liu, Yan-Rui"'
Autor:
Jiang, Jun, Li, Shi-Yuan, Liang, Xiao, Liu, Yan-Rui, Qiao, Cong-Feng, Si, Zong-Guo, Yang, Hao
The inclusive production of pseudoscalar heavy quarkoniua ($\eta_c,~\eta_b$ and $B_c$) via photon-photon fusion in heavy ion ultraperipheral collision (UPC) are calculated to QCD next-to-leading order in the framework of non-relativistic QCD (NRQCD).
Externí odkaz:
http://arxiv.org/abs/2406.19735
We systematically investigate the mass spectrum and two-body open-charm strong decays of charmonium states in a coupled-channel model where the $^3P_0$ quark-antiquark pair creation mechanism is employed. The results of masses, mass shifts, proportio
Externí odkaz:
http://arxiv.org/abs/2402.02765
Treating the $X(4140)$ as a compact $J^{PC}=1^{++}$ $cs\bar{c}\bar{s}$ state and using its mass as a reference scale, we systematically estimate the masses of doubly heavy tetraquark states $QQ\bar{q}\bar{q}$ where $Q=c,b$ and $q=u,d,s$. Their decay
Externí odkaz:
http://arxiv.org/abs/2401.00115
Publikováno v:
Chin.Phys.C 48 (2024) 6, 063109
We study the spectrum and rearrangement decays of S-wave $cs\bar{c}\bar{s}$ tetraquark states in a simplified quark model. The masses and widths are estimated by assuming that the $X(4140)$ is the lower $1^{++}$ $cs\bar{c}\bar{s}$ tetraquark. Compari
Externí odkaz:
http://arxiv.org/abs/2308.06768
Publikováno v:
Phys. Rev. D 108, 056015 (2023)
Assuming that the $P_c(4312)^+$ is a $I(J^P)=\frac12(\frac32^-)$ compact pentaquark, we study the mass spectrum of its S-wave hidden-charm partner states in a color-magnetic interaction model. Combining the information from their decays obtained in a
Externí odkaz:
http://arxiv.org/abs/2307.00539
Publikováno v:
Phys. Rev. D 108, 014027 (2023)
The chiral Lagrangians for singly heavy baryons are constructed up to the $\mathcal{O}(p^{4})$ order. The involved baryons may be in a flavor antitriplet with spin-1/2, a flavor sextet with spin-$1/2$, or a flavor sextet with spin-3/2 when one consid
Externí odkaz:
http://arxiv.org/abs/2304.09183
Publikováno v:
Phys. Rev. D 108, 014032 (2023)
The relativistic chiral Lagrangians for both spin-$\frac{1}{2}$ and spin-$\frac{3}{2}$ doubly charmed baryons are constructed up to the order $\mathcal{O}(p^{4})$. From $\mathcal{O}(p^{2})$ to $\mathcal{O}(p^{4})$, there are 19, 74, and 452 independe
Externí odkaz:
http://arxiv.org/abs/2304.04575
Publikováno v:
Eur. Phys. J. C 83, 296 (2023)
We study the relations between low-energy constants (LECs) in the chiral Lagrangians with $\Delta(1232)$ and those in the quark-level description model up to the third chiral order. Ten structure correspondences are involved in getting the relations.
Externí odkaz:
http://arxiv.org/abs/2301.08059
Publikováno v:
Phys. Rev. D 106 (2022) 5, 054023
The quark model symmetry can be adopted to establish relations between the low-energy constants (LECs) in the baryon chiral perturbation theory ($\chi PT$) if one assumes that a baryon-baryon-meson coupling is described equivalently by a quark-quark-
Externí odkaz:
http://arxiv.org/abs/2206.06570
Publikováno v:
Rept. Prog. Phys. 86 (2023) no.2, 026201
The past decades witnessed the golden era of hadron physics. Many excited open heavy flavor mesons and baryons have been observed since 2017. We shall provide an updated review of the recent experimental and theoretical progresses in this active fiel
Externí odkaz:
http://arxiv.org/abs/2204.02649