Published April 2011 | Version v1
Journal article Metadata-only

NLO calculation of prompt photon production in DIS at HERA

Creators

  • 1. Universite de Savoie, CNRS, LAPTH, BP 110, Annecy-le-Vieux Cedex (France)
  • 2. The Institute of Mathematical Sciences, Chennai (India)
  • 3. Universite Paris XI, Laboratoire de Physique Theorique, UMR 8627 du CNRS, Orsay Cedex (France)

Description

We present a next-to-leading order calculation of prompt photon production in deep-inelastic scattering. The calculation involves direct, fragmentation and resolved contributions. Inclusive as well as isolated photon production cross sections are presented. The relevance of imposing a transverse momentum cut-off in the virtual-photon proton center-of-mass system rather than in the laboratory frame is discussed. Whenever possible, a comparison of the theoretical results with recent HERA data is carried out. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjc/s10052-011-1616-3

Additional details

Identifiers

DOI
10.1140/epjc/s10052-011-1616-3;

Publishing Information

Journal Title
European Physical Journal. C
Journal Volume
71
Journal Issue
4
Journal Page Range
p. 1-7
ISSN
1434-6044

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
43004756
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
DEEP INELASTIC SCATTERING; DIFFERENTIAL CROSS SECTIONS; ENERGY SPECTRA; GAMMA SPECTRA; GEV RANGE 100-1000; LEPTON-PROTON INTERACTIONS; LEPTONS; PERTURBATION THEORY; PHOTON-PROTON INTERACTIONS; PHOTONS; QUANTUM CHROMODYNAMICS; THEORETICAL DATA; TRANSVERSE MOMENTUM; VIRTUAL PARTICLES
Descriptors DEC
BASIC INTERACTIONS; BOSONS; CROSS SECTIONS; DATA; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; GEV RANGE; INELASTIC SCATTERING; INFORMATION; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LINEAR MOMENTUM; MASSLESS PARTICLES; NUMERICAL DATA; PARTICLE INTERACTIONS; PHOTON-BARYON INTERACTIONS; PHOTON-HADRON INTERACTIONS; PHOTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY; SCATTERING; SPECTRA