Precision Tests of Flavor and CP Violation in B Decays

✍ Scribed by Michael Gronau

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 226 KB
• Volume: 163
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/j.nuclphysbps.2006.09.011

✦ Synopsis

Isospin and flavor SU(3) set stringent bounds on penguin pollution in B 0 (t) → ρ + ρ -, providing a theoretically precise determination of α ≡ φ 2 , α = (91 ± 7 exp ± 3 th ) • . Isospin breaking in a sum rule for B → Kπ rates is shown to be suppressed. A similar sum rule holds for CP asymmetries in B → Kπ. Violation of these sum rules would be evidence for an anomalous ΔI = 1 piece in H eff .