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arXiv 2510.22005hep-phhep-thnucl-th
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中微子波包的相互作用

Interactions of Neutrino Wave Packets

University of Washington(华盛顿大学)

Michael J. Cervia

AI总结:

研究中微子波包在密集环境中散射时,发现波包大小对弱相互作用的影响至关重要。

摘要:

从标准模型导出的低能有效场论中的相互作用中微子,可以被建模为点相互作用,并在中微子动量的晶格上进行建模。我们识别出一条路径,以在动量中心框架下取该晶格问题的连续极限。在该极限下,弱相互作用被发现成为平凡的,除非考虑到有限的中微子波包大小。我们随后对相互作用的中微子波包进行了解析处理,证明了波包大小对于描述密集环境中中微子-中微子散射的重要性。

英文摘要:

The low energy effective field theory of interacting neutrinos derived from the Standard Model may be framed as a pointlike interaction and thereby modeled on a lattice of neutrino momenta. We identify a path to take a continuum limit of this lattice problem in the center of momentum frame. In this limit, the weak interaction is found to become trivial between incoming plane waves describing ultrarelativistic particles, unless finite neutrino wave packet sizes are taken into consideration. We follow up with an analytic treatment of interacting neutrino wave packets, demonstrating the importance of the wave packet size for characterizing neutrino-neutrino scattering in dense environments.

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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