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

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

1997-07-15

arxiv.org/abs/hep-ph/9707354v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pgs, 4 tables, 9 figures

Scientific paper

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

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