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

Abstract

We calculate the branching ratio and direct CP asymmetry in nonleptonic two body B decays B^+- ->π^+- η'. 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^- ->π^- η')=3.4 X 10^{-6} should be accessible to experiment in the near future.

arXiv comment13 pages, Revtex, 4 figures (included)

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Cited by in corpus (11)

• Pathways to Rare Baryonic B Decays
• Two-Body Charmless B Decays Involving eta and eta'
• B -> K eta(') decay in perturbative QCD
• On the ${\eta }^{\prime }$ Gluonic Admixture
• $|V_{ub}|$ and $B\to {\eta }^{{(}^{\prime })}$ Form Factors in Covariant Light Front Approach
• $B\to {\eta }^{(\prime )}({\ell }^{-}{\bar{\nu }}_{\ell },{\ell }^{+}{\ell }^{-},K,K^{\ast })$ decays in the quark-flavor mixing scheme
• A gluonic mechanism for B --> D eta'
• A note on the baryonic B-->Lambdabar p eta' decay
• B-> K photon photon via intermediate eta'
• Mixing effects of $\eta -{\eta }^{\prime }$ in ${\Lambda }_b\to \Lambda {\eta }^{{(}^{\prime })}$ decays
• Nonperturbative QCD corrections to the effective coefficients of the four-Fermi operators