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DOI	10.1016/j.scib.2020.08.038
	Strong decays of fully-charm tetraquarks into di-charmonia
	Chen H.-X.; Chen W.; Liu X.; Zhu S.-L.
发表日期	2020
ISSN	20959273
起始页码	1994
结束页码	2000
卷号	65 期号:23
英文摘要	We study strong decays of the possible fully-charm tetraquarks recently observed by LHCb, and calculate their relative branching ratios through the Fierz rearrangement. Together with our previous QCD sum rule study, our results suggest that the broad structure around 6.2–6.8 GeV can be interpreted as an S-wave ccc¯c¯ tetraquark state with JPC=0++ or 2++, and the narrow structure around 6.9 GeV can be interpreted as a P-wave one with JPC=0-+ or 1-+. These structures were observed in the di-J/ψ invariant mass spectrum, and we propose to confirm them in the di-ηc,J/ψhc,ηcχc0, and ηcχc1 channels. We also propose to search for their partner states having the negative charge-conjugation parity in the J/ψηc,J/ψχc0,J/ψχc1, and ηchc channels. © 2020 Science China Press
关键词	Fierz rearrangement Fully-heavy tetraquark QCD sum rules
英文关键词	Germanium compounds; Hadrons; Mass spectrometry; Seismic waves; Shear waves; Branching ratio; Invariant-mass spectra; Negative charge; P waves; QCD sum rules; S-waves; Tetraquarks; Bosons
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207003
作者单位	School of Physics, Southeast University, Nanjing, 210094, China; School of Physics, Beihang University, Beijing, 100191, China; School of Physics, Sun Yat-Sen University, Guangzhou, 510275, China; School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China; Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou, 730000, China; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China; Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China; Center of High Energy Physics, Peking University, Beijing, 100871, China
推荐引用方式 GB/T 7714	Chen H.-X.,Chen W.,Liu X.,et al. Strong decays of fully-charm tetraquarks into di-charmonia[J],2020,65(23).
APA	Chen H.-X.,Chen W.,Liu X.,&Zhu S.-L..(2020).Strong decays of fully-charm tetraquarks into di-charmonia.Science Bulletin,65(23).
MLA	Chen H.-X.,et al."Strong decays of fully-charm tetraquarks into di-charmonia".Science Bulletin 65.23(2020).