Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1993-08-17
Phys.Rev. D49 (1994) 2490-2507
Physics
High Energy Physics
High Energy Physics - Phenomenology
PHYZZX, 45 pages, 1 figure (not included), CLNS 93/1192, IP-ASTP-02-93, ITP-SB-93-04
Scientific paper
10.1103/PhysRevD.49.2490
In earlier publications we have analyzed the strong and radiative decays of heavy hadrons in a formalism which incorporates both heavy-quark and chiral symmetries. In particular, we have derived a heavy-hadron chiral Lagrangian whose coupling constants are related by the heavy-quark flavor-spin symmetry arising from the QCD Lagrangian with infinitely massive quarks. In this paper, we re-examine the structure of the above chiral Lagrangian by including the effects of $1/m_Q$ corrections in the heavy quark effective theory. The relations among the coupling constants, originally derived in the heavy-quark limit, are modified by heavy quark symmetry breaking interactions in QCD. Some of the implications are discussed.
Cheng Hai-Yang
Cheung Chi-Yee
Lin Guey-Lin
Lin Yen-Chih
Yan Tung-Mow
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