Heavy Quark Effective Theory, Interpolating Fields and Bethe-Salpeter Amplitudes

Abstract

We use the LSZ reduction theorem and interpolating fields, alongwith the heavy quark effective theory, to investigate the structure of the Bethe-Salpeter amplitude for heavy hadrons. We show how a simple form of this amplitude, used extensively in heavy hadron decay calculations, follows naturally upto $O(1/M)$ from these field theoretic considerations.

10 pages, IC/94/64

Cited by in corpus (3)

• Towards a Heavy Diquark Effective Theory for Weak Decays of Doubly Heavy Baryons
• 1/m_Q Corrections to the Bethe-Salpeter Equation for Λ_{Q} in the Diquark Picture
• $SU(2N_f)\otimes O(3)$ light diquark symmetry and current-induced heavy baryon transition form factors