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General analysis of weak decay form factors in heavy to heavy and heavy to light baryon transitions

Technical Report:

Abstract

We present a complete analysis of the heavy to heavy and heavy to light baryon semileptonic decays in the heavy quark effective theory within the framework of a Bethe-Salpeter (B-S) approach and demonstrate the equivalence of this approach to other work in the field. We present in a compact form the baryon B-S amplitudes which incorporate the symmetries manifest in the heavy quark limit and which also show clearly the light quark dynamics. A similar form of the B-S amplitude is presented for light baryons. Using the B-S amplitudes, the heavy to heavy and heavy to light semileptonic baryon decays are considered. As expected there is a dramatic reduction in the number of form factors. An advantage of our B-S approach is demonstrated where the form factors are written as loop integrals which in principle can be calculated. (author). 15 refs, 3 figs, 2 tabs.
Authors:
Hussain, F; Dongsheng, Liu; [1]  Kraemer, M; Koerner, J G; [2]  Tawfiq, S [3] 
  1. International Centre for Theoretical Physics, Trieste (Italy)
  2. Johannes Gutenberg Univ., Mainz (Germany, F.R.). Inst. fuer Physik
  3. Trieste Univ. (Italy). Ist. di Fisica Teorica
Publication Date:
Jun 01, 1991
Product Type:
Technical Report
Report Number:
IC-91/133
Reference Number:
SCA: 662320; PA: AIX-22:082634; SN: 91000609402
Resource Relation:
Other Information: PBD: Jun 1991
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BARYONS; SEMILEPTONIC DECAY; BETHE-SALPETER EQUATION; FORM FACTORS; MATRIX ELEMENTS; QUARK MODEL; STRUCTURE FUNCTIONS; 662320; NEUTRINO INTERACTIONS
OSTI ID:
10106192
Research Organizations:
International Centre for Theoretical Physics (ICTP), Trieste (Italy)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ON: DE92609712; TRN: XA9129654082634
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
22 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Hussain, F, Dongsheng, Liu, Kraemer, M, Koerner, J G, and Tawfiq, S. General analysis of weak decay form factors in heavy to heavy and heavy to light baryon transitions. IAEA: N. p., 1991. Web.
Hussain, F, Dongsheng, Liu, Kraemer, M, Koerner, J G, & Tawfiq, S. General analysis of weak decay form factors in heavy to heavy and heavy to light baryon transitions. IAEA.
Hussain, F, Dongsheng, Liu, Kraemer, M, Koerner, J G, and Tawfiq, S. 1991. "General analysis of weak decay form factors in heavy to heavy and heavy to light baryon transitions." IAEA.
@misc{etde_10106192,
title = {General analysis of weak decay form factors in heavy to heavy and heavy to light baryon transitions}
author = {Hussain, F, Dongsheng, Liu, Kraemer, M, Koerner, J G, and Tawfiq, S}
abstractNote = {We present a complete analysis of the heavy to heavy and heavy to light baryon semileptonic decays in the heavy quark effective theory within the framework of a Bethe-Salpeter (B-S) approach and demonstrate the equivalence of this approach to other work in the field. We present in a compact form the baryon B-S amplitudes which incorporate the symmetries manifest in the heavy quark limit and which also show clearly the light quark dynamics. A similar form of the B-S amplitude is presented for light baryons. Using the B-S amplitudes, the heavy to heavy and heavy to light semileptonic baryon decays are considered. As expected there is a dramatic reduction in the number of form factors. An advantage of our B-S approach is demonstrated where the form factors are written as loop integrals which in principle can be calculated. (author). 15 refs, 3 figs, 2 tabs.}
place = {IAEA}
year = {1991}
month = {Jun}
}