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arXiv · 1010.3080

Heavy-light form factors: The Isgur-Wise function in point-form relativistic quantum mechanics

María Gómez Rocha·Wolfgang Schweiger
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Abstract

We investigate electromagnetic and weak form factors of heavy-light mesons in the context of point-form relativistic quantum mechanics. To this aim we treat the physical processes from which such electroweak form factors are extracted by means of a coupled channel approach which accounts for the dynamics of the intermediate gauge bosons. It is shown that heavy-quark symmetry is respected by this formulation. A simple analytical expression is obtained for the Isgur-Wise function in the heavy-quark limit. Breaking of heavy-quark symmetry due to realistic values of the heavy-quark mass are studied numerically.

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María Gómez Rocha, Wolfgang Schweiger. 2010-10-15. Heavy-light form factors: The Isgur-Wise function in point-form relativistic quantum mechanics. https://arxiv.org/abs/1010.3080

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