Phys. Rev. D 63, 112002 (2001) [11 pages]B-physics constraints on baryon number violating couplings: Grand unification, supersymmetry, or compositenessReceived 5 January 2001; published 4 May 2001 We investigate the role that baryon number violating interactions may play in B phenomenology. Present in various grand unified theories, supersymmetric theories with R-parity violation and composite models, a fundamental diquark state could be quite light. Using the data on B decays as well as B-B̅ mixing, we find strong constraints on the couplings that such a light diquark state may have with the standard model quarks. Our analysis is most general in nature, and the particular models mentioned above are only specific examples thereof. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.63.112002
DOI:
10.1103/PhysRevD.63.112002
PACS:
12.10.Dm, 13.25.Hw
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