A sum rule from the shape function

We present a sum rule relating the electron energy spectrum and the hadron mass distribution in semileptonic b -> u decays close to threshold. The relation found is free from non-perturbative effects and the theoretical error is expected to be O(5%). An experimental confirmation of this predictio...

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Detalles Bibliográficos
Autor principal: Aglietti, Ugo
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/471495
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author Aglietti, Ugo
author_facet Aglietti, Ugo
author_sort Aglietti, Ugo
collection CERN
description We present a sum rule relating the electron energy spectrum and the hadron mass distribution in semileptonic b -> u decays close to threshold. The relation found is free from non-perturbative effects and the theoretical error is expected to be O(5%). An experimental confirmation of this prediction can provide a check of the basic assumptions at the root of the theory of the shape function.
id cern-471495
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-4714952023-03-14T17:59:22Zhttp://cds.cern.ch/record/471495engAglietti, UgoA sum rule from the shape functionParticle Physics - PhenomenologyWe present a sum rule relating the electron energy spectrum and the hadron mass distribution in semileptonic b -> u decays close to threshold. The relation found is free from non-perturbative effects and the theoretical error is expected to be O(5%). An experimental confirmation of this prediction can provide a check of the basic assumptions at the root of the theory of the shape function.We present a sum rule relating the electron energy spectrum and the hadron mass distribution in semileptonic b -> u decays close to threshold. The relation found is free from non-perturbative effects and the theoretical error is expected to be O(5%). An experimental confirmation of this prediction can provide a check of the basic assumptions at the root of the theory of the shape function.hep-ph/0010251CERN-TH-2000-309CERN-TH-2000-309oai:cds.cern.ch:4714952000-10-22
spellingShingle Particle Physics - Phenomenology
Aglietti, Ugo
A sum rule from the shape function
title A sum rule from the shape function
title_full A sum rule from the shape function
title_fullStr A sum rule from the shape function
title_full_unstemmed A sum rule from the shape function
title_short A sum rule from the shape function
title_sort sum rule from the shape function
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/471495
work_keys_str_mv AT agliettiugo asumrulefromtheshapefunction
AT agliettiugo sumrulefromtheshapefunction

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