Covariant quark model of form factors in the heavy mass limit

Details Covariant quark model of form factors in the heavy mass limit Covariant quark model of form factors in the heavy mass limit

1995-07-19

arxiv.org/abs/hep-ph/9507342v1

Phys.Lett. B365 (1996) 319-326

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages

Scientific paper

10.1016/0370-2693(95)01285-0

We show that quark models of current matrix-elements based on the Bakamjian-Thomas construction of relativistic states with a fixed number of particles, plus the additivity assumption, are covariant in the heavy-quark limit and satisfy the full set of heavy-quark symmetry relations discovered by Isgur and Wise. We find the lower bound of $\rho^2$ in such models to be $3/4$ for ground state mesons, independently of any parameter. Another welcome property of these models is that in the infinite momentum limit the wave functions vanish outside the domain $0\le x \le 1$.

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