Electroweak penguins in isospin-violating B_s decays

2010/01/01 by Lars Hofer, Hofer, Lars, Dominik Scherer +3
Computer Science · Physics and Astronomy · #Black Holes and Theoretical Physics #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.1012.3551

Only 2 pages. Presented at ICHEP 2010

openalex publication_date 2010/01/01 · arxiv created 2010/12/16 · arxiv updated 2010/12/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

The 2.5 sigma discrepancy between theory and experiment observed in the difference Delta ACP = ACP(B- --> pi0 K-) - ACP(Bb0 --> pi+ K-) can be explained by a new electroweak (EW) penguin amplitude. Motivated by this result, we have analyzed the purely isospin-violating decays B_s --> phi pi0 and B_s phi rho0, which are dominated by EW penguins. Our results extend the analysis in arXiv:0910.2809 and have recently been published in arXiv:1011.6319. Here we give a brief overview of the outcome.

Citations

• Search for New Physics in Electroweak Penguins via B_s Decays

Related

• Penguins in CP violating B decays
• Large electroweak penguins in B --> pi pi and B --> pi K : implication for new physics
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• Possibility of Large EW Penguin contribution