QCD description of backward vector meson hard electroproduction

B. Pire, K. Semenov-Tian-Shansky, and L. Szymanowski
Phys. Rev. D 91, 094006 – Published 5 May 2015; Erratum Phys. Rev. D 106, 099901 (2022)

Abstract

We consider backward vector meson exclusive electroproduction off nucleons in the framework of collinear QCD factorization. Nucleon to vector meson transition distribution amplitudes (TDAs) arise as building blocks for the corresponding factorized amplitudes. In the near-backward kinematics, the suggested factorization mechanism results in the dominance of the transverse cross section of vector meson production (σTσL) and in the characteristic 1/Q8-scaling behavior of the cross section. We evaluate nucleon to vector meson TDAs in the cross-channel nucleon exchange model and present estimates of the differential cross section for backward ρ0, ω and ϕ meson production off protons. The resulting cross sections are shown to be measurable in the forthcoming JLab@12 GeV experiments.

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  • Received 10 March 2015

DOI:https://doi.org/10.1103/PhysRevD.91.094006

© 2015 American Physical Society

Erratum

Erratum: QCD description of backward vector meson hard electroproduction [Phys. Rev. D 91, 094006 (2015)]

B. Pire, K. Semenov-Tian-Shansky, and L. Szymanowski
Phys. Rev. D 106, 099901 (2022)

Authors & Affiliations

B. Pire1, K. Semenov-Tian-Shansky1,2, and L. Szymanowski3

  • 1CPhT, École Polytechnique, CNRS, 91128 Palaiseau, France
  • 2IFPA, département AGO, Université de Liège, 4000 Liège, Belgium
  • 3National Centre for Nuclear Research (NCBJ), 00-681 Warsaw, Poland

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Issue

Vol. 91, Iss. 9 — 1 May 2015

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