arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2602.02746hep-ph
收藏

在重离子碰撞中寻找缺失的直接光子:利用P和CP破坏

Searching for missing direct photons in heavy-ion collisions with P and CP violation

Iowa State University(爱荷华州立大学)

Jonathan D. Kroth, Kirill Tuchin

AI总结:

本研究通过计算P和CP破坏参数对同步辐射的影响,探讨了重离子碰撞中缺失直接光子问题的可能解决方案。

摘要:

我们计算了等离子体中同步辐射的产生,其中P和CP破坏参数、左手化学势和左手梯度与费米子耦合。为此,我们计算了在这些参数和外部恒定磁场存在下费米子的精确波函数。我们发现这些参数会增加费米子发出的同步辐射,同时也会减小传统上较大的同步辐射椭圆流系数v2。我们将这些结果应用于夸克胶子等离子体,其中这样的贡献可能为缺失的直接光子谜题提供解决方案。我们还利用这些波函数推导了左手磁效应。

英文摘要:

We compute synchrotron radiation from a plasma in which $P$- and $CP$-violating parameters, a chiral chemical potential and a chiral gradient, couple to fermions. To do this, we compute exact wavefunctions for the fermions in the presence of these parameters and an external constant magnetic field. We find that these parameters increase the synchrotron radiation emitted by the fermions while also decreasing the traditionally large synchrotron radiation elliptic flow coefficient $v_2$. We apply these results to the quark-gluon plasma, where just such a contribution could provide a solution to the missing direct photons puzzle. We also use our wavefunctions to give a derivation of the chiral magnetic effect.

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。

↑