Semi-inclusive B decays and a model for soft-gluon effects
نویسندگان
چکیده
منابع مشابه
Semi - Inclusive B Decays and a Model for Soft - Gluon Effects
We compare experimental spectra of radiative and semileptonic B decays with the predictions of a model based on soft-gluon resummation to next-to-next-to-leading order and on a ghost-less time-like coupling. We find a good agreement with photon spectra in the radiative decay and with hadron mass distributions in the semileptonic one: the extracted values for αS (mZ) are in agreement with the cu...
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Semi-leptonic and radiative semi-inclusive decays of heavy mesons are currently under intense investigation. Non perturbative physics seems to be more manageable in such decays, and there is hope for a reduction of theoretical assumptions and a more stringent comparison with experimental data. Several effective approaches to such decays are available. Most commonly, in order to calculate the de...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2007
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2007.01.014