【摘要】 在有限温度下运用硬热圈近似求得 φ36 理论单圈自能 ,进而求得有限质量和衰变率 .发现在临界温度Tc 以上存在热不稳定性 ,而有效温度和衰变率则分别正比于gT和gT .最后将所得结果与热QCD比较更多还原

【Abstract】 We calculate the effective mass and damping rate in φ 3 6 theory at finite temperature by evaluating the real and imaginary parts of the one loop self energies at the hard thermal loop (HTL) approximation. We show that there is thermal instability above a critical temperature T c. The effective mass and damping rate are proportional to gT and gT respectively. We compare our results with those in hot QCD.更多还原