Charm Production at Low Q2 With the ZEUS Detector

Journal Article · Thu Oct 06 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2122158· OSTI ID:20726564

Aghuzumtsyan, Gayane ^[1]

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1. Physikalisches Institut, University of Bonn (Germany)

The production of D*(2010) mesons in deep inelastic scattering at low Q2 has been measured with the ZEUS detector at HERA using an integrated luminosity of 81.9 pb-1. The D* mesons have been reconstructed from their decay into D0 and {pi}s with the decay D0 {yields} K-{pi}+ and corresponding antiparticle decay. Differential D* cross sections as functions of exchanged photon virtuality, Q2, inelasticity, y, transverse momentum of the D* meson, pT(D*), and pseudorapidity of the D* meson, {eta}(D*), have been measured, using the beam-pipe calorimeter of ZEUS. The kinematic region of the measurement is 0.05 < Q2 < 0.7 GeV2, 0.02 < y < 0.85, 1.5 < pT(D*) < 9.0 GeV and |{eta}(D*)| < 1.5. The measured differential cross sections are compared with the predictions of next-to-leading-order QCD.

• OSTI ID: 20726564
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 792; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIPARTICLES
CROSS SECTIONS
D MESONS
D*-2010 MESONS
DEEP INELASTIC SCATTERING
ETA MESONS
GEV RANGE
HADRONIC PARTICLE DECAY
HERA STORAGE RING
KAONS MINUS
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PHOTONS
QUANTUM CHROMODYNAMICS
TRANSVERSE MOMENTUM