B+ --> D*⁺ₛ gamma and B+ --> D*⁺ gamma as Probes of Vub
Grinstein, Benjamin · Lebed, Richard F.
Original · EN
The decays B+ --> D*⁺ₛ gamma and B+ --> D*⁺ gamma 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 BB mixing and D* --> D gamma 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.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.