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Measurement of D± production in deep inelastic ep scattering with the ZEUS detector at HERA
Journal article   Open access   Peer reviewed

Measurement of D± production in deep inelastic ep scattering with the ZEUS detector at HERA

H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, O. Arslan, …
The journal of high energy physics, Vol.2013(5), 023
05/01/2013
DOI: 10.1007/JHEP05(2013)023
url
https://doi.org/10.1007/JHEP05(2013)023View
Published (Version of record) Open Access

Abstract

Charm production in deep inelastic ep scattering was measured with the ZEUS detector using an integrated luminosity of 354 pb−1. Charm quarks were identified by reconstructing D± mesons in the D± → K∓π±π± decay channel. Lifetime information was used to reduce combinatorial background substantially. Differential cross sections were measured in the kinematic region 5 < Q2 < 1000 GeV2, 0.02 < y < 0.7, 1.5 < pT (D±) < 15 GeV and |η(D±)| < 1.6, where Q2 is the photon virtuality, y is the inelasticity, and pT (D±) and η(D±) are the transverse momentum and the pseudorapidity of the D± meson, respectively. Next-to-leading-order QCD predictions are compared to the data. The charm contribution, F c¯c 2 , to the proton structure-function F2 was extracted
Physics Quantum Field Theory Quantum Physics String Theory Article Classical and Quantum Gravitation Elementary Particles Physics and Astronomy Quantum Field Theories Relativity Theory

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