Heavy quark limit in the light front quark model

Details Heavy quark limit in the light front quark model Heavy quark limit in the light front quark model

1998-07-10

arxiv.org/abs/hep-ph/9807333v2

JHEP 9808:008,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 1 figure

Scientific paper

10.1088/1126-6708/1998/08/008

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.

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