在夸克-胶子等离子体中，电子跃迁和eta_b发生了什么变化？格点量子色动力学的底偶素谱函数
What happens to the Upsilon and eta_b in the quark-gluon plasma? Bottomonium spectral functions from lattice QCD
摘要：
本文采用格点量子色动力学方法，在各向异性格点上研究了夸克-胶子等离子体中底鎓谱函数的Upplane和eta_b通道.用非相对论QCD（NRQCD）处理底夸克。在0.42 < T/T_c < 2.09的温度范围内，随着温度的升高，基态继续存在，而激发态受到抑制。基态的位置和宽度进行了比较，分析有效场论（EFT）的预测。系统的不确定性的最大熵方法（MEM），用于构建的谱函数，进行了详细讨论。
英文摘要：
We study bottomonium spectral functions in the quark-gluon plasma in the Upsilon and eta_b channels, using lattice QCD simulations with two flavours of light quark on highly anisotropic lattices. The bottom quark is treated with nonrelativistic QCD (NRQCD). In the temperature range we consider, 0.42 < T/T_c < 2.09, we find that the ground states survive, whereas the excited states are suppressed as the temperature is increased. The position and width of the ground states are compared to analytical effective field theory (EFT) predictions. Systematic uncertainties of the maximum entropy method (MEM), used to construct the spectral functions, are discussed in some detail.
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。
