Dijet Angular Distribution in Photoproduction of Charm at HERA

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doi:10.1016/S0370-2693(03)00752-4

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Dijet angular distributions of photoproduction events in which a D*± meson is produced in association with one of two energetic jets have been measured with the ZEUS detector at HERA, using an integrated luminosity of 120 pb-1. Differential cross sections as a function of the angle between the charm-jet and the proton-beam direction in the dijet rest frame have been measured for samples enriched in direct or resolved photon events. The results are compared with predictions from leading-order parton-shower Monte Carlo models and with next-to-leading-order QCD calculations. The angular distributions show clear evidence for the existence of charm originating from the photon.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/1064693

Titolo:	Dijet Angular Distribution in Photoproduction of Charm at HERA
Autori interni:	DE PASQUALE, Salvatore
Data di pubblicazione:	2003
Rivista:	PHYSICS LETTERS. SECTION B
Handle:	http://hdl.handle.net/11386/1064693
Appare nelle tipologie:	1.1.1 Articolo su rivista con DOI

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