Heavy flavours from QCD spectral sum rules

Details Heavy flavours from QCD spectral sum rules Heavy flavours from QCD spectral sum rules

1995-10-11

arxiv.org/abs/hep-ph/9510270v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages on Latex file. published version: minor modifications compared with the previous version. Contribution to the session

Scientific paper

We present a summary update of the QCD spectral sum rule (QSSR) results for the running and {\it perturbative pole} quark masses, the $f_D$ and $f_B$ leptonic decay constants, the heavy-to-light and heavy-to-heavy exclusive transition-form factors. Analytic expressions of these latter quantities are presented, which give a deeper understanding of their $q^2$- and infinite mass-behaviours. A short comparison of the QSSR results with alternative approaches is done.

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