Speaker
Guglielmo Papiri
(Cornell University)
Description
It is known that kaon CP-violation could manifest itself in decays into neutral kaons. In particular, the CP asymmetry in $\tau\rightarrow \pi K_s \nu$ had been searched for. In this work we discuss how the measured time integrated CP asymmetry depends on the experimental detection efficiency as a function of the energy and the decay time of the kaon. We show that such dependencies of the experimental efficiency lead to a non-vanishing CP asymmetry for the decay channel into two kaons $\tau\rightarrow\pi K_S K_L \nu$, that is a background to the decay mode into a single $K_S$. We derive a theoretical prediction for such background asymmetry and discuss its experimental relevance.
Authors
Guglielmo Papiri
(Cornell University)
Prof.
Yuval Grossman
(Cornell University)
