有限温下重夸克偶素的质量谱
The mass spectra of heavy quarkonia at finite temperature
摘要
使用薛定谔方程计算粲夸克偶素和底夸克偶素在温度0.8Tc^2Tc时的质量谱.我们的计算表明,随着温度的升高,夸克偶素的质量不断下降,直至分解.粲偶素的s波基态在T^1.2Tc时分解;而底偶素的s波基态直到T^2Tc时仍然处于束缚状态.
In this paper we calculate the masses of chamonium and bottomonium at temperatures 0.8Tc^2Tc.Our results show that the mass of quarkonium becomes smaller when temperature rises and the n=0,s-wave state for charmonium melt at T~1.2Tc and its counterpart for bottomonium remains binding below 2Tc.
出处
《辽宁师范大学学报(自然科学版)》
CAS
2011年第1期38-42,共5页
Journal of Liaoning Normal University:Natural Science Edition
参考文献10
-
1ARMESTO N, BORGHINI N, JEON S, et al. Heavy-ion collisions at the LHC--Last call for predietions[J]. J Phys, 2008, G35.- 054001.
-
2MATSUI T, SATZ H. J/ψ suppression by quark-gluon plasma formation[J]. Phys Lett, 1986, B178 : 416.
-
3KHARZEEV D,SATZ H. Quarkonium interactions in hadronic matter[J]. Phys Lett, 1994 ,B334:155.
-
4DIGAL S, PETRECZKY D, SATZ H. String breaking and quarkonium dissociation at finite temperatures[J]. Phys Lett, 2001, B514:57.
-
5WONG Cheuk-yin. Dissociation of a heavy quarkonium at high temperatures[J]. Phys Rev, 2002,C65:034902.
-
6ASAKAWA M,HASUDA T. J/ψ and r/, in the deconfined plasma from lattice QCD[J]. Phys Rev Lett,2004,92:012001.
-
7KISELEV V V, LIKHODED A K, PAK HOMOVA O N, et al. Leptonic constants of heavy quarkonia in a potential approach of nonrelativistic QCD[J]. Phys Rev, 2002, D65 : 034013.
-
8DIGAL S, KACZMAREK O, KARSCH F, et al. Heavy quark interactions in finite temperature QCD[J]. Eur Phys J, 2005, C43:71-75. hep-ph/0505193.
-
9KACZMAREK O, EJIRI S, KARSCH F, et al. Heavy quark free energies and renormalized Polyakov loop in full QCI[J]. Prog Theor Phys,2004,153(Suppl) :287.
-
10SATZ H. Heavy quark interactions and quarkonium binding[J]. J Phys,2009,G36:064011.