H1 and ZEUS have published single-differential cross sections for inclusive D*(±)-meson production in deep-inelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible phase-space region of photon virtuality Q^2 > 5 GeV^2, electron inelasticity 0.02 < y < 0.7 and the D*(±) meson’s transverse momentum pT(D*) > 1.5 GeV and pseudorapidity |η(D*)| < 1.5. The combination procedure takes into account all correlations, yielding significantly reduced experimental uncertainties. Double-differential cross sections d^2(σ)/[d(Q^2)dy] are combined with earlier D*(±) data, extending the kinematic range down to Q^2 > 1.5 GeV^2. Perturbative next-to-leading-order QCD predictions are compared to the results.

Combination of differential D*(±) cross-section measurements in deep-inelastic ep scattering at HERA

SOLANO, Ada Maria;
2015-01-01

Abstract

H1 and ZEUS have published single-differential cross sections for inclusive D*(±)-meson production in deep-inelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible phase-space region of photon virtuality Q^2 > 5 GeV^2, electron inelasticity 0.02 < y < 0.7 and the D*(±) meson’s transverse momentum pT(D*) > 1.5 GeV and pseudorapidity |η(D*)| < 1.5. The combination procedure takes into account all correlations, yielding significantly reduced experimental uncertainties. Double-differential cross sections d^2(σ)/[d(Q^2)dy] are combined with earlier D*(±) data, extending the kinematic range down to Q^2 > 1.5 GeV^2. Perturbative next-to-leading-order QCD predictions are compared to the results.
2015
2015
9
149
180
http://link.springer.com/journal/13130
Charm physics; Heavy quark production; Lepton-Nucleon Scattering; QCD; HERA; ZEUS; H1
The H1 and ZEUS collaborations, Null; Abramowicz, H.; Abt, I.; Adamczyk, L.; Adamus, M.; Andreev, V.; Antonelli, S.; Aushev, V.; Aushev, Y.; Baghdasar...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1579276
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