arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2207.01014hep-ph
收藏

Majorana费米子的Anapole矩及其对直接探测中微子暗物质的意义

Anapole Moment of Majorana Fermions and Implications for Direct Detection of Neutralino Dark Matter

Alejandro Ibarra, Merlin Reichard, Ryo Nagai

摘要:

对于马约拉纳费米子的阿那极点矩是唯一允许的电磁多极矩。本文利用箍缩技术计算了由Majorana费米子的Yukawa和规范相互作用在单圈处引起的Anapole矩,以保证结果的有限性和规范不变性。作为马约拉纳费米子的典型例子,我们计算了最轻的中性伴子在最小超对称标准模型,特别是在bino,wino和higgsino限制的anapole时刻。最后,我们简要地讨论了直接检测的暗物质的形式马约拉纳费米子的阿那普尔时刻的影响。

英文摘要:

For Majorana fermions the anapole moment is the only allowed electromagnetic multipole moment. In this work we calculate the anapole moment induced at one-loop by the Yukawa and gauge interactions of a Majorana fermion, using the pinch technique to ensure the finiteness and gauge-invariance of the result. As archetypical example of a Majorana fermion, we calculate the anapole moment for the lightest neutralino in the Minimal Supersymmetric Standard Model, and specifically in the bino, wino and higgsino limits. Finally, we briefly discuss the implications of the anapole moment for the direct detection of dark matter in the form of Majorana fermions.

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。

↑