Determining gamma using B->D^**K

Details Determining gamma using B->D^**K Determining gamma using B->D^**K

2004-05-07

arxiv.org/abs/hep-ph/0405061v2

Phys.Rev. D70 (2004) 097501

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, LaTex, 1 figure. Minor changes and some references added

Scientific paper

10.1103/PhysRevD.70.097501

We propose the use of B -->D^**K decay modes for a theoretically clean determination of the weak phase gamma. The self tagging decays of the neutral D^** mesons, makes a measurement of the b --> u\bar{c}s amplitude feasible. This overcomes the problem with the Gronau-London-Wyler proposal. Even an upper limit on the branching ratio for B^- -->bar{D}^{**0}K^- will place an assumption free, lower bound on gamma.

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