B+→Ds*+ γ and B+→D*+ γ as probes of Vub

Benjamín Grinstein; Richard F. Lebed

doi:10.1103/PhysRevD.60.031302

B⁺→D_s⁺ γ and B⁺→D⁺ γ as probes of V_ub

Benjamín Grinstein, Richard F. Lebed

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The decays B⁺→D_s*⁺ γ and B⁺→D*⁺ γ can be used for an extraction of |V_ub|. When the b and c quarks are nearly degenerate, the rate for these modes can be determined in terms of other observed rates, namely BB̄ mixing and D*→Dγ decay. To this end, we introduce a novel application of heavy quark and flavor symmetries. Although somewhat unrealistic, this limit provides us with a first estimate of these rates.

Original language	English (US)
Article number	031302
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	60
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.60.031302
State	Published - Aug 1 1999
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "The decays B+→Ds*+ γ and B+→D*+ γ can be used for an extraction of |Vub|. When the b and c quarks are nearly degenerate, the rate for these modes can be determined in terms of other observed rates, namely B{\=B} mixing and D*→Dγ decay. To this end, we introduce a novel application of heavy quark and flavor symmetries. Although somewhat unrealistic, this limit provides us with a first estimate of these rates.",

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AB - The decays B+→Ds*+ γ and B+→D*+ γ can be used for an extraction of |Vub|. When the b and c quarks are nearly degenerate, the rate for these modes can be determined in terms of other observed rates, namely BB̄ mixing and D*→Dγ decay. To this end, we introduce a novel application of heavy quark and flavor symmetries. Although somewhat unrealistic, this limit provides us with a first estimate of these rates.

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B⁺→D_s⁺ γ and B⁺→D⁺ γ as probes of V_ub

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