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Electroproduction of tensor mesons in QCD

  • V. M. BraunEmail author
  • N. Kivel
  • M. Strohmaier
  • A. A. Vladimirov
Open Access
Regular Article - Theoretical Physics

Abstract

Due to multiple possible polarizations hard exclusive production of tensor mesons by virtual photons or in heavy meson decays offers interesting possibilities to study the helicity structure of the underlying short-distance process. Motivated by the first measurement of the transition form factor γγ → f 2(1270) at large momentum transfers by the BELLE collaboration we present an improved QCD analysis of this reaction in the framework of collinear factorization including contributions of twist-three quark-antiquark-gluon operators and an estimate of soft end-point corrections using light-cone sum rules. The results appear to be in good agreement with the data, in particular the predicted scaling behavior is reproduced in all cases.

Keywords

QCD Phenomenology NLO Computations 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2016

Authors and Affiliations

  • V. M. Braun
    • 1
    Email author
  • N. Kivel
    • 2
  • M. Strohmaier
    • 1
  • A. A. Vladimirov
    • 1
  1. 1.Institut für Theoretische PhysikUniversität RegensburgRegensburgGermany
  2. 2.Helmholtz Institut MainzJohannes Gutenberg-UniversitätMainzGermany

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