First measurement of the T-violating muon polarization in the decay K^+ --> mu^+ nu gamma

Preprint

22 April 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0304027

Abstract

We present the result of the first measurement of the T-violating muon polarization P_T in the decay K^+ --> mu^+ nu gamma. This polarization is sensitive to new sources of CP-violation in the Higgs sector. Using data accumulated in the period 1996-98 we have obtained P_T = (-0.64 +- 1.85(stat) +- 0.10(syst))x10^{-2} which is consistent with no T-violation in this decay.

Keywords

VIOLATING MUON POLARIZATION
CP VIOLATION
DECAY K
P_T

All Related Versions

Version 1, 2003-04-22, ArXiv
Published version: Physics Letters B, 562 (3-4), 166.

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