Published March 2017 | Version v1
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Higher-twist B-meson distribution amplitudes in HQET

Creators

  • 1. Regensburg Univ. (Germany). Inst. fuer Theoretische Physik
  • 2. Hamburg Univ. (Germany). Inst. fuer Theoretische Physik

Description

We present a systematic study of higher-twist distribution amplitudes (DAs) of the B-meson which give rise to power-suppressed 1/mB contributions to B-decays in final states with energetic light particles in the framework of QCD factorization. As the main result, we find that the renormalization group equations for the three-particle distributions are completely integrable in the large Nc limit and can be solved exactly. General properties of the solutions are studied. We propose simple models for higher-twist DAs which satify all existing constraints and can be used in phenomenological studies.

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Additional details

Publishing Information

Imprint Pagination
42 p.
ISSN
0418-9833
Report number
DESY--17-037

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
49041876
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
AMPLITUDES; B MESONS; COLOR MODEL; DISTRIBUTION FUNCTIONS; FACTORIZATION; FLAVOR MODEL; INTEGRO-DIFFERENTIAL EQUATIONS; PARTICLE STRUCTURE; QUANTUM CHROMODYNAMICS; RENORMALIZATION; THREE-BODY PROBLEM; TWO-BODY PROBLEM
Descriptors DEC
BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; EQUATIONS; FIELD THEORIES; FUNCTIONS; HADRONS; MANY-BODY PROBLEM; MATHEMATICAL MODELS; MESONS; PARTICLE MODELS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARK MODEL