η' production in B-decays: Standard Model vs. New Physics

1997/07/15 by Kagan, Alexander L., Petrov, Alexey A.
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.hep-ph/9707354

Abstract

Standard model factorization can account for the large rate for B^± → η' K^±. The large rate for B → η' X_s is more problematic and requires a ``cocktail'' solution. Individual contributions from factorization, b → η' s g, and ``intrinsic charm'' fall significantly short of the observed rate. In contrast, the observed η' yields are easily explained in models with B(b → sg) ∼ 15%. Factorization can account for the entire semi-inclusive η' yield without violating rare decay constraints. Implications for CP violation are discussed.

Related

• Physics with B → η' and B→ J/ψ
• The inclusive B->eta' X_s decay and b-> sg* form factors
• B → η' X_s in the Standard Model
• Contribution of b→ s gg through the QCD anomaly in exclusive decays B → (η',η) (K, K^*)
• Determination of γ from the η- η' mixing within QCD Factorization