Author:
Dery Avital,Ghosh Mitrajyoti
Abstract
Abstract
We analyze the New Physics sensitivity of a recently proposed method to measure the CP-violating $$ \mathcal{B} $$
B
(KS → μ+μ−)ℓ=0 decay rate using KS− KL interference. We present our findings both in a model-independent EFT approach as well as within several simple NP scenarios. We discuss the relation with associated observables, most notably $$ \mathcal{B} $$
B
(KL → π0$$ \nu \overline{\nu} $$
ν
ν
¯
). We find that simple NP models can significantly enhance $$ \mathcal{B} $$
B
(KS → μ+μ−)ℓ=0, making this mode a very promising probe of physics beyond the standard model in the kaon sector.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
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