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arXiv · 1603.06326

CP violation in $h\to ττ$ and LFV $h\to μτ$

Alper Hayreter·Xiao-Gang He·German Valencia
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Abstract

The CMS collaboration has reported a possible lepton flavour violating (LFV) signal $h\toμτ$. Whereas this does not happen in the standard model (SM), we point out that new physics responsible for this type of decay would, in general, also produce charge-parity (CP) violation in $h\to ττ$. We estimate the size of this effect in a model independent manner and find that a large asymmetry, of order 25\%, is allowed by current constraints.

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Alper Hayreter, Xiao-Gang He, German Valencia. 2016-05-24. CP violation in $h\to ττ$ and LFV $h\to μτ$. https://doi.org/10.1016/j.physletb.2016.06.066

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