You need JavaScript to view this

Form factors of heavy mesons in QCD

Journal Article:

Abstract

We discuss logarithmic corrections to form factors of mesons built from heavy quarks. The reactions e/sup +/e/sup -/ ..-->.. etasub(c)..gamma.. and H ..-->.. J/psi..gamma.. are considered as an example. A novel feature as compared to the well-studied problem of the pion form factor is the existence of transitions between the quark-antiquark state canti c and the gluonic one. O(..cap alpha..sub(s)) corrections are calculated exactly. An infinite series of the leading logarithmic terms (..cap alpha..sub(s)ln(Q/sup 2//m/sup 2/sub(c)))sup(n) is summed up with the help of the operator technique. Apart from results already known for quark operators, we use some new results referring to gluon operator and their mixing with those made from quarks. Two alternative derivations of the multiplicatively renormalizable operators are given. The first one reduces to a direct computation of the mixing matrix and its diagonalization, the second is based on conformal symmetry considerations.
Authors:
Shifman, M A; Vysotsky, M I [1] 
  1. Moskovskii Inst. Theoreticheskoj i Ehksperimental'noj Fiziki (USSR)
Publication Date:
Aug 10, 1981
Product Type:
Journal Article
Reference Number:
AIX-13-649369; EDB-82-061900
Resource Relation:
Journal Name: Nucl. Phys. B; (Netherlands); Journal Volume: 186:3
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHI RESONANCES; ELECTROMAGNETIC FORM FACTORS; PSI-3105 RESONANCES; QUANTUM CHROMODYNAMICS; ANNIHILATION; BOUND STATE; CONFIGURATION MIXING; CORRECTIONS; ELECTRON-POSITRON INTERACTIONS; GLUONS; MATRICES; PHOTONS; QUANTUM OPERATORS; QUARK-ANTIQUARK INTERACTIONS; QUARKS; RENORMALIZATION; BASIC INTERACTIONS; BOSONS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; FIELD THEORIES; FORM FACTORS; HADRONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MASSLESS PARTICLES; MATHEMATICAL OPERATORS; MESON RESONANCES; MESONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; POSTULATED PARTICLES; PSI RESONANCES; QUANTUM FIELD THEORY; RESONANCE PARTICLES; VECTOR MESONS; 645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties; 645400 - High Energy Physics- Field Theory
OSTI ID:
5787210
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NUPBB
Submitting Site:
INIS
Size:
Pages: 475-518
Announcement Date:

Journal Article:

Citation Formats

Shifman, M A, and Vysotsky, M I. Form factors of heavy mesons in QCD. Netherlands: N. p., 1981. Web.
Shifman, M A, & Vysotsky, M I. Form factors of heavy mesons in QCD. Netherlands.
Shifman, M A, and Vysotsky, M I. 1981. "Form factors of heavy mesons in QCD." Netherlands.
@misc{etde_5787210,
title = {Form factors of heavy mesons in QCD}
author = {Shifman, M A, and Vysotsky, M I}
abstractNote = {We discuss logarithmic corrections to form factors of mesons built from heavy quarks. The reactions e/sup +/e/sup -/ ..-->.. etasub(c)..gamma.. and H ..-->.. J/psi..gamma.. are considered as an example. A novel feature as compared to the well-studied problem of the pion form factor is the existence of transitions between the quark-antiquark state canti c and the gluonic one. O(..cap alpha..sub(s)) corrections are calculated exactly. An infinite series of the leading logarithmic terms (..cap alpha..sub(s)ln(Q/sup 2//m/sup 2/sub(c)))sup(n) is summed up with the help of the operator technique. Apart from results already known for quark operators, we use some new results referring to gluon operator and their mixing with those made from quarks. Two alternative derivations of the multiplicatively renormalizable operators are given. The first one reduces to a direct computation of the mixing matrix and its diagonalization, the second is based on conformal symmetry considerations.}
journal = {Nucl. Phys. B; (Netherlands)}
volume = {186:3}
journal type = {AC}
place = {Netherlands}
year = {1981}
month = {Aug}
}