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arXiv · 2110.08795

Dineutrino modes probing lepton flavor violation

Rigo Bause·Hector Gisbert·Marcel Golz·Gudrun Hiller
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Abstract

$SU(2)_L$-invariance links charged dilepton $\bar q\,q^\prime\,\ell^+\,\ell^-$ and dineutrino $\bar q\, q^\prime\, \bar\nu\,\nu$ couplings. This connection can be established using the Standard Model Effective Field Theory framework, and allows to perform complementary experimental tests of lepton universality and charged lepton flavor conservation with flavor-summed dineutrino observables. We present its phenomenological implications for the branching ratios of rare charm decays $c\to u\,\nu\,\bar\nu$ and rare $B$ decays $b\to s\,\bar\nu\,\nu$ decays.

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Rigo Bause, Hector Gisbert, Marcel Golz, Gudrun Hiller. 2021-10-17. Dineutrino modes probing lepton flavor violation. https://arxiv.org/abs/2110.08795

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