Chiral perturbation theory for fDS/FD and BBS/BB期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Chiral perturbation theory for f_{D_S}/F_D and B_{B_S}/B_B

Authors:	Benjamin Grinstein

Affiliation:	SSC Laboratory, 2250 Beckleymeade Avenue, Dallas, TX 75237-3946, USA Department of Physics 0319, University of California, San Diego, La Jolla, CA 92093-0319, USA California Institute of Technology, Pasadena, CA 91125, USA

Abstract:	The decay constants for D and D_s mesons, denoted f_D and f_{D_S} respectively, are equal in the SU(3)_V limit, as are the hadronic amplitudes for and mixing. The leading SU(3)_V violating contribution to (F_{D_S}/F_D) and to the ration of hadronic matrix elements relevant for and mixing amplitudes are calculated in chiral perturbatiion theory. We discuss the formalism needed to include both meson and anti-meson fields in the heavy quark effective theory.

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