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.File | Dimensione | Formato | |
---|---|---|---|
10.1007.JHEP09.2015.149.pdf
Accesso aperto
Tipo di file:
PDF EDITORIALE
Dimensione
642.46 kB
Formato
Adobe PDF
|
642.46 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.