Chiral expansion for lattice computations of B+ → D0K++) and B+ → D0K++) amplitudes

Christopher Aubin, C.-J. Lin, Amarjit Soni

Research output: Contribution to journalConference articlepeer-review


In this work, we suggest that hard-pion chiral perturbation theory may be applicable to the real parts of nonleptonic B+ → D0P+ and B+ → D0P+ (P = K,π) decay amplitudes. These amplitudes play an important role in the extraction of the angle γ in the b−d unitarity triangle of the CKM matrix, and their real parts can be computed using lattice QCD. We construct the leading-order operator in the chiral expansion for these nonleptonic decays, and discuss the generic features of the next-to-leading-order terms.

Original languageEnglish
JournalProceedings of Science
StatePublished - 1 Jan 2011
Event29th International Symposium on Lattice Field Theory, Lattice 2011 - Squaw Valley, Lake Tahoe, United States
Duration: 10 Jul 201116 Jul 2011


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