Heavy quark limit in the light front quark model

An explicit relativistic light-front model is presented which gives the momentum transfer dependent form factors of weak hadronic currents among heavy pseudoscalar and vector mesons in the whole accessible kinematical region \(0\leq q^2 \leq q^2_{\max} \). It is shown that in the limit of infinite m...

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Bibliographic Details
Published in:arXiv.org 1998-09
Main Author: Demchuk, N B
Format: Article
Language:English
Subjects:
Form factors
Mesons
Momentum transfer
Quark models
Quarks
Vector mesons
Online Access:Get full text
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Summary:An explicit relativistic light-front model is presented which gives the momentum transfer dependent form factors of weak hadronic currents among heavy pseudoscalar and vector mesons in the whole accessible kinematical region \(0\leq q^2 \leq q^2_{\max} \). It is shown that in the limit of infinite masses of active quarks these form factors can be expressed in terms of universal Isgur-Wise function. The explisit expression for this function is obtained. It is shown that neglecting of pair creation from the vacuum in calculations of form factors does not violate Luke's theorem.
ISSN:2331-8422
DOI:10.48550/arxiv.9807333