Masses of fully heavy tetraquarks QQQ¯ Q¯ in an extended relativized quark model

被引：0
|
作者：
Lü Q.-F. [1 ,2 ,3 ]
Chen D.-Y. [4 ]
Dong Y.-B. [5 ,6 ,7 ]
机构：
[1] Department of Physics, Hunan Normal University, Changsha
[2] Synergetic Innovation Center for Quantum Effects and Applications (SICQEA), Changsha
[3] Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Changsha
[4] School of Physics, Southeast University, Nanjing
[5] Institute of High Energy Physics, Chinese Academy of Sciences, Beijing
[6] Theoretical Physics Center for Science Facilities (TPCSF), CAS, Beijing
[7] School of Physical Sciences, University of Chinese Academy of Sciences, Beijing
来源：
Lü, Qi-Fang (lvqifang@hunnu.edu.cn) | 1600年 / Springer Science and Business Media Deutschland GmbH卷 / 80期
基金：
中国国家自然科学基金;
关键词：
45;
D O I：
10.1140/epjc/s10052-020-08454-1
中图分类号：
学科分类号：
摘要：
Inspired by recent measurement of possible fully charmed tetraquarks in LHCb Collaboration, we investigate the mass spectra of fully heavy tetraquarks QQQ¯ Q¯ in an extended relativized quark model. Our estimations indicate that the broad structure around 6.4 GeV should contain one or more ground states for ccc¯ c¯ tetraquarks, while the narrow structure near 6.9 GeV can be categorized as the first radial excitation of ccc¯ c¯ system. Moreover, with the wave functions of the tetraquarks and mesons, the strong decays of tetraquarks into heavy quarkonium pair are qualitatively discussed, which can be further checked by the LHCb and CMS Collaborations. © 2020, The Author(s).
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