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Anwar, MN; Ferretti, J; Guo, FK; Santopinto, E5; Zou, BS
Spectroscopy and decays of the fully-heavy tetraquarks
Source PublicationEUROPEAN PHYSICAL JOURNAL C
Language英语
KeywordBOUND-STATES QUANTUM CHROMODYNAMICS MASS INEQUALITIES MULTIQUARK HADRONS HIDDEN-CHARM QUARK-MODEL SYSTEMS QCD MESONS ANNIHILATION
AbstractWe discuss the possible existence of the fullyheavy tetraquarks. We calculate the ground-state energy of the bb (b) over bar(b) over bar bound state, where b stands for the bottom quark, in a nonrelativistic effective field theory framework with onegluon-exchange (OGE) color Coulomb interaction, and in a relativized diquark model characterized by OGE plus a confining potential. Our analysis advocates the existence of uni-flavor heavy four-quark bound states. The ground state bbbb tetraquark mass is predicted to be (18.72 +/- 0.02) GeV. Mass inequality relations among the lowest QQ (Q) over bar(Q) over bar states, where Q is an element of (c, b), and the corresponding heavy quarkonia are presented, which give the upper limit on the mass of ground state QQ (Q) over bar(Q) over bar. The possible decays of the lowest bb (b) over barb are highlighted, which might provide useful references in the search for them in ongoing LHC experiments, and its width is estimated to be a few tens of MeV.
2018
ISSN1434-6044
Volume78Issue:8Pages:647
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1140/epjc/s10052-018-6073-9
Indexed BySCIE
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22837
CollectionSCI期刊论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
4.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
6.INFN, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy
Recommended Citation
GB/T 7714
Anwar, MN,Ferretti, J,Guo, FK,et al. Spectroscopy and decays of the fully-heavy tetraquarks[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(8):647.
APA Anwar, MN,Ferretti, J,Guo, FK,Santopinto, E,&Zou, BS.(2018).Spectroscopy and decays of the fully-heavy tetraquarks.EUROPEAN PHYSICAL JOURNAL C,78(8),647.
MLA Anwar, MN,et al."Spectroscopy and decays of the fully-heavy tetraquarks".EUROPEAN PHYSICAL JOURNAL C 78.8(2018):647.
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