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arXiv 2211.12166hep-lat
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强背景磁场中QCD的Phase diagram

Phase diagram of QCD in strong background magnetic field

Massimo D'Elia, Lorenzo Maio, Francesco Sanfilippo, Alfredo Stanzione

摘要:

我们讨论了强背景磁场下QCD的相图,并基于具有物理夸克质量和$2+1$味的QCD格点模拟,给出了数值证据,证明了在足够大的磁场下,QCD交叉转变为一级相变.临界终点位于$eB=4$ GeV $^2$之间(其中我们发现在伪临界温度$T_c=(98\pm3)$ MeV处的分析交叉)和$eB=9$ GeV $^2$(其中测量的临界温度是$T_c=(63\pm5)$ MeV)。

英文摘要:

We discuss the phase diagram of QCD in the presence of a strong background magnetic field, providing numerical evidence, based on lattice simulations of QCD with $2+1$ flavours and physical quark masses, that the QCD crossover turns into a first order phase transition for large enough magnetic field, with a critical endpoint located between $eB=4$ GeV$^2$ (where we found an analytic crossover at a pseudo-critical temperature $T_c=(98\pm3)$ MeV) and $eB=9$ GeV$^2$ (where the measured critical temperature is $T_c=(63\pm5)$ MeV).

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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