Published December 1, 1991
| Version v1
Journal article
Form factors of semileptonic D decays from QCD sum rules
Creators
- 1. Institut fuer Theoretische Physik, Universitaet Heidelberg, Philosophenweg 16, D-6900 Heidelberg (Germany)
Description
We give a detailed QCD sum-rule analysis of the semileptonic decays D+→ bar K 0e+νe and D+→ bar K 0*e+νe. We use the standard method based on expansion in Euclidean distance as well as a new set of sum rules on the light cone. We compare the results with current experimental data and results from quark models. Special attention is paid to the t dependence of the form factors. We find from our sum-rule analysis that for the vector form factors the usual pole model approximation works perfectly well, but is not adequate for the axial-vector form factors
Additional details
Publishing Information
- Journal Title
- Physical Review, D
- Journal Volume
- 44
- Journal Issue
- 11
- Series
- Phys. Rev., D.
- Journal Page Range
- 3567-3581
- ISSN
- 0556-2821
- CODEN
- PRVDA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23023812
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHARM PARTICLES; D PLUS MESONS; ELECTRON NEUTRINOS; FORM FACTORS; KAONS NEUTRAL; LIGHT CONE; PARTICLE PRODUCTION; POSITRONS; QUANTUM CHROMODYNAMICS; QUARK MODEL; SEMILEPTONIC DECAY; SUM RULES
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; CHARMED MESONS; COMPOSITE MODELS; D MESONS; DECAY; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; HADRONS; KAONS; LEPTONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATTER; MESONS; NEUTRINOS; PARTICLE DECAY; PARTICLE MODELS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SPACE-TIME; STRANGE MESONS; STRANGE PARTICLES; WEAK PARTICLE DECAY