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arXiv 1901.00482hep-ph
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中微子的张量和标量相互作用可能导致可观测的中微子磁矩

Tensor and scalar interactions of neutrinos may lead to observable neutrino magnetic moments

Xun-Jie Xu

摘要:

最近,为了响应即将到来的中微子相互作用的精确测量,人们广泛研究了更广义的中微子四费米子相互作用,例如张量和标量相互作用(TSI)。在这封信中,我们表明,由于手征翻转的性质,在1圈水平TSIs通常产生更大的($10^{7}\sim10^{10}$)中微子磁矩($ν$)比矢量的情况下。在某些情况下,由TSIs产生的大的$ν$能谱可能达到或超过已知的界限,这意味着在当前和未来的中微子实验中探测TSIs和搜索$ν$能谱之间潜在的重要相互作用。

英文摘要:

Recently more generalized four-fermion interactions of neutrinos such as tensor and scalar interactions (TSIs) have been extensively studied in response to forthcoming precision measurements of neutrino interactions. In this letter, we show that due to the chirality-flipping nature, at the 1-loop level TSIs typically generate much larger ($10^{7}\sim10^{10}$) neutrino magnetic moments ($ν$MMs) than the vector case. For some cases, the large $ν$MMs generated by TSIs may reach or exceed the known bounds, which implies potentially important interplay between probing TSIs and searching for $ν$MMs in current and future neutrino experiments.

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