Possible large direct CP asymmetry in hadronic B+- -> π+- η' decays

Details Possible large direct CP asymmetry in hadronic B+- -> π+- η' decays Possible large direct CP asymmetry in hadronic B+- -> π+- η' decays

1998-07-16

arxiv.org/abs/hep-ph/9807398v1

Phys.Rev. D59 (1999) 054014

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, Revtex, 4 figures (included)

Scientific paper

10.1103/PhysRevD.59.054014

We calculate the branching ratio and direct CP asymmetry in nonleptonic two body B decays B^+- ->\pi^+- \eta'. It is shown that the tree diagram and gluon fusion mechanism via penguin diagram have comparable contributions to these decays which, as a result, could provide an interesting venue for investigating CP violation. Our estimate shows that the direct CP asymmetry in the above decays could be as large as 75% which along with a branching ratio B(B^- ->\pi^- \eta')=3.4 X 10^{-6} should be accessible to experiment in the near future.

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