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arXiv 2602.13044hep-phhep-thnucl-th
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旋转同步辐射:磁化旋转夸克-胶子等离子体的光子发射

Rotating synchrotron radiation: Photon emission from magnetized and rotating quark-gluon plasma

West University of Timișoara(蒂米什瓦拉西大学);Iowa State University(爱荷华州立大学)

Matteo Buzzegoli, Sergiu Busuioc, Jonathan D. Kroth, Nandagopal Vijayakumar, Kirill Tuchin

AI总结:

研究热平衡下刚性旋转的磁化夸克-胶子等离子体通过旋转同步辐射产生非瞬时光子的机制,计算了光子谱和椭圆流,发现磁场诱导显著v2,旋转增强负电荷夸克辐射,有望解决“直接光子疑难”。

摘要:

本文研究了由旋转同步辐射(RoSyRa)产生的非瞬时光子,具体而言,是在外部磁场存在下,热平衡中刚性旋转的夸克-胶子等离子体发射的光子。我们计算了非瞬时光子谱及其在中心快度区的椭圆流($v_2$)。特别地,我们研究了有限体积效应。我们发现,在低横向动量下,磁场诱导出显著的$v_2$,而等离子体旋转增强了带负电夸克的同步辐射。这些发现使RoSyRa成为解决“直接光子疑难”的可行候选机制。

英文摘要:

This paper investigates the production of non-prompt photons originating from rotating synchrotron radiation (RoSyRa), specifically the emission of photons by a rigidly rotating quark-gluon plasma in thermal equilibrium, in the presence of an external magnetic field. We compute the non-prompt photon spectrum and its elliptic flow ($v_2$) at mid-rapidity. In particular, we investigate the finite volume effects. We find that at low transverse momentum, the magnetic field induces a significant $v_2$, while the plasma rotation boosts the synchrotron radiation of negatively charged quarks. These findings make RoSyRa a viable candidate mechanism to resolve the "direct photon puzzle."

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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