$X(3960)$, $X_0(4140)$, and other compact $cs\bar{c}\bar{s}$ states

Autor:	Li, Shi-Yuan, Liu, Yan-Rui, Man, Zi-Long, Si, Zong-Guo, Wu, Jing
Rok vydání:	2023
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Experiment Nuclear Theory
Zdroj:	Chin.Phys.C 48 (2024) 6, 063109
Druh dokumentu:	Working Paper
DOI:	10.1088/1674-1137/ad34c4
Popis:	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. Comparing our results with experimental measurements, we find that the recently observed $X(3960)$ by LHCb can be assigned as the lowest $0^{++}$ $cs\bar{c}\bar{s}$ tetraquark state and the $X_0(4140)$ could be the second lowest $0^{++}$ $cs\bar{c}\bar{s}$ tetraquark. Predictions of ratios between partial widths for the involved tetraquarks are given. We call for searches for more $cs\bar{c}\bar{s}$ tetraquarks with $J^{PC}=1^{+-}$, $0^{++}$, and $2^{++}$. Comment: 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2308.06768 Zobrazit plný text záznamu View this record from Arxiv