ITP OpenIR  > SCI期刊论文
Meng, Q; Wu, Q; Cheng, P; Ping, JL; Zong, HS
Calculation of dissociation temperature of quarkonium using Gaussian Expansion Method
Source PublicationCHINESE PHYSICS C
Language英语
KeywordDECONFINEMENT TRANSITION SYSTEMS LATTICE QCD
AbstractThe dissociation temperatures of quarkonium states in a thermal medium are obtained in the framework of the quark model with the help of the Gaussian Expansion Method (GEM). This is the first time this method has been applied to the dissociation problem of mesons. The temperature-dependent potential is obtained by fitting the lattice results. Solving the Schrodinger equation with the GEM, the binding energies and corresponding wave functions of the ground states and the excited states are obtained at the same time. The accuracy and efficiency of the GEM provide a great advantage for the dissociation problem of mesons. The results show that the ground states 1(1)S(0) and 1(3)S(1) have much higher dissociation temperatures than other states, and the spin-dependent interaction has a significant effect on the dissociation temperatures of 1(3)S(1) and 1(1)S(0). We also suggest using the radius of the bound state as a criterion of quarkonium dissociation. This can help to avoid the inaccuracy caused by the long tail of quarkonium binding energy dependence on temperature.
2018
ISSN1674-1137
Volume42Issue:8Pages:83103
Subject AreaPhysics
MOST Discipline CataloguePhysics, Nuclear ; Physics, Particles & Fields
DOI10.1088/1674-1137/42/8/083103
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22847
CollectionSCI期刊论文
Affiliation1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Nanjing Normal Univ, Dept Phys, Nanjing 210046, Jiangsu, Peoples R China
3.Joint Ctr Particle, Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Meng, Q,Wu, Q,Cheng, P,et al. Calculation of dissociation temperature of quarkonium using Gaussian Expansion Method[J]. CHINESE PHYSICS C,2018,42(8):83103.
APA Meng, Q,Wu, Q,Cheng, P,Ping, JL,&Zong, HS.(2018).Calculation of dissociation temperature of quarkonium using Gaussian Expansion Method.CHINESE PHYSICS C,42(8),83103.
MLA Meng, Q,et al."Calculation of dissociation temperature of quarkonium using Gaussian Expansion Method".CHINESE PHYSICS C 42.8(2018):83103.
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