Direct CP Violation in B+ to J/psi K+ Decay as Probe for New Physics

Details Direct CP Violation in B+ to J/psi K+ Decay as Probe for New Physics Direct CP Violation in B+ to J/psi K+ Decay as Probe for New Physics

2006-05-08

arxiv.org/abs/hep-ph/0605080v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 6 figures

Scientific paper

Currently there are New Physics hints in mixing-induced CP violation S(phi K0), S(pi0 K0) < S(J/psi K0), unequal direct CP violation A(K+ pi-) differs A(K+ pi0), and maybe even in measured S(J/psi K0) vs prediction from global fit to other data. However, these hints either suffer from experimental uncertainties, or uncertain hadronic corrections, and are not yet unequivocal. Motivated by these hints, however, we point out that a unique probe may be direct CP violation in B to J\psi K mode. An asymmetry observed at 1% or higher would indicate New Physics.

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