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arXiv 0907.5176hep-ph
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QCD退精细相中的双夸克和三夸克关联

Diquark and triquark correlations in the deconfined phase of QCD

I. M. Narodetskii, Yu. A. Simonov, A. I. Veselov

摘要:

我们利用场相关法导出的有限温度下的非微扰Q \bar Q势,得到了Q \bar Q和QQQ(Q=c,b)系统的最低本征态的结合能.用超球方法求解了三夸克问题。该解提供了不同的双夸克和三夸克束缚态的熔化温度和半径的估计。特别地,我们发现J/H和$ccc$基态在T \sim 1.3 T_c(T_c是临界温度)下仍然存在,而相应的底鎓态甚至在更高的温度T \sim 2.2 T_c下仍然存在.

英文摘要:

We use the non-perturbative Q\bar Q potential at finite temperatures derived in the Field Correlator Method to obtain binding energies for the lowest eigenstates in the Q\bar Q and QQQ systems (Q=c,b). The three--quark problem is solved by the hyperspherical method. The solution provides an estimate of the melting temperature and the radii for the different diquark and triquark bound states. In particular we find that J/ψand $ccc$ ground states survive up to T \sim 1.3 T_c, where T_c is the critical temperature, while the corresponding bottomonium states survive even up to higher temperature, T \sim 2.2 T_c.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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