Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet Case

We discuss the two and three particle light-cone distribution amplitudes (DAs) of pseudoscalar nonsinglet mesons of twist 3 and 4. Using nonlocal operator identities and conformal expansion, we derive closed expressions for several DAs. We also include meson-mass corrections which prove to be domina...

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Detalles Bibliográficos
Autor principal: Ball, P
Lenguaje:eng
Publicado: 1998
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/1999/01/010
http://cds.cern.ch/record/374477
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author Ball, P
author_facet Ball, P
author_sort Ball, P
collection CERN
description We discuss the two and three particle light-cone distribution amplitudes (DAs) of pseudoscalar nonsinglet mesons of twist 3 and 4. Using nonlocal operator identities and conformal expansion, we derive closed expressions for several DAs. We also include meson-mass corrections which prove to be dominant in the twist 4 DAs of K and eta mesons. Explicit parametrizations for the DAs of pi, K and eta mesons are given, with the numerical input parameters determined from QCD sum rules.
id cern-374477
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
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spelling cern-3744772019-09-30T06:29:59Zdoi:10.1088/1126-6708/1999/01/010http://cds.cern.ch/record/374477engBall, PTheoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet CaseParticle Physics - PhenomenologyWe discuss the two and three particle light-cone distribution amplitudes (DAs) of pseudoscalar nonsinglet mesons of twist 3 and 4. Using nonlocal operator identities and conformal expansion, we derive closed expressions for several DAs. We also include meson-mass corrections which prove to be dominant in the twist 4 DAs of K and eta mesons. Explicit parametrizations for the DAs of pi, K and eta mesons are given, with the numerical input parameters determined from QCD sum rules.hep-ph/9812375CERN-TH-98-400oai:cds.cern.ch:3744771998-12-16
spellingShingle Particle Physics - Phenomenology
Ball, P
Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet Case
title Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet Case
title_full Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet Case
title_fullStr Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet Case
title_full_unstemmed Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet Case
title_short Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet Case
title_sort theoretical update of pseudoscalar meson distribution amplitudes of higher twist: the non-singlet case
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1126-6708/1999/01/010
http://cds.cern.ch/record/374477
work_keys_str_mv AT ballp theoreticalupdateofpseudoscalarmesondistributionamplitudesofhighertwistthenonsingletcase

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