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arXiv · hep-ph/9407330

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

F. Hussain·G. Thompson
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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.

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F. Hussain, G. Thompson. 1994-07-19. Heavy Quark Effective Theory, Interpolating Fields and Bethe-Salpeter Amplitudes. https://doi.org/10.1016/0370-2693(94)91414-1

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