Jet Cross Sections in D* Photoproduction with ZEUS

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

DOI:https://doi.org/10.1063/1.2122160· OSTI ID:20726566

Kohno, Takanori ^[1]

---

1. Denys Wilkinson Building Keble Road, Oxford, OX1 3RH (United Kingdom)

Charm photoproduction in D* photoproduction have been studied using 78.6 pb-1 of data collected by the ZEUS detector. The measurement of inclusive jet cross section with a D* in the final state was performed in the kinematic region, Q2 < 1 GeV, 130 < W < 280 GeV, p{sub T}{sup D{sup *}} > 3 GeV, |{eta}D*| < 1.5, E{sub T}{sup jet} > 6 GeV and -1.5 < {eta}jet < 2.4. Differential cross sections as a function of E{sub T}{sup jet} and {eta}jet were compared to the NLO QCD predictions. There is a general agreement with the NLO QCD preditions. In addition to above requirements, a dijet sub-sample having at least two jets with E{sub T}{sup jet} > 6 GeV and the leading jet with E{sub T}{sup jet} > 7 GeV was used to measure dijet correlations. Dijet correlations are compared to the NLO QCD predictions and leading-order (LO) Monte Carlo (MC) models with parton showers (PS). Dijet correlations are described well by the LO+PS models, while the NLO QCD prediction underestimates the measurement in the region where higher-order effects are expected to become significant.

• OSTI ID: 20726566
• 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
CASCADE SHOWERS
CORRELATIONS
CROSS SECTIONS
D MESONS
D*-2010 MESONS
GEV RANGE
GLUONS
HERA STORAGE RING
JET MODEL
MONTE CARLO METHOD
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PHOTOPRODUCTION
QUANTUM CHROMODYNAMICS
QUARKS