Contribution to a conference proceedings

PUBDB-2015-00124

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Measurement of D* photoproduction at three different centre-of-mass energies at HERA

Zakharchuk, N. (Corresponding Author)Extern*

2014

Abstract: The cross sections for the photoproduction of D mesons have been measured with the ZEUS detector at HERA at three different ep centre-of-mass energies, p s , of 318, 251 and 225 GeV. For each data set, D mesons were required to have transverse momentum, p D T , and pseudorapidity, h D , in the ranges 1.9 < p D T < 20 GeV and | h D | < 1.6. The events were required to have a virtuality of the incoming photon, Q 2 , of less than 1 GeV 2 . The dependence on p s was studied by normalising to the high-statistics measurement at p s = 318 GeV. This led to the cancellation of a number of systematic effects both in data and theory. Predictions from next-to-leading-order QCD describe the p s dependence of the data well.

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Contributing Institute(s):

1. ZEUS Kollaboration (ZEUS)

Research Program(s):

1. Experiments at HERA (ZEUS) (POF2-511) (POF2-511)

Experiment(s):

1. HERA: ZEUS

Appears in the scientific report 2014

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Database coverage:
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