The first measurements of the invariant differential cross sections of inclusive pi(0) and eta meson production at mid-rapidity in proton-proton collisions root s = 0.9 TeV and root s = 7 TeV are reported. The pi(0) measurement covers the ranges 0.4 < p(T) < 7 GeV/c and 0.3 < p(T) < 25 GeV/c for these two energies, respectively. The production of eta mesons was measured at root s = 7 TeV in the range 0.4 < p(T) < 15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the pi(0) spectrum at root s = 0.9 TeV, overestimate those of pi(0) and eta mesons at root s = 7 TeV, but agree with the measured eta/pi(0) ratio at root s = 7 TeV. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

Neutral pion and eta meson production in proton-proton collisions at root s=0.9 TeV and root s=7 TeV / B., A., A. A., Q., D., A., A. M., A., M. M., A., G. A., R., A. G., A., A., A., S. A., S., Z., A., N., A., A. A., M., S. U., A., A., A., D., A., B., A., R. A., M., A., A., A., A., E. A., A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 717:(2012), pp. 162-172. [10.1016/j.physletb.2012.09.015]

Neutral pion and eta meson production in proton-proton collisions at root s=0.9 TeV and root s=7 TeV

L. Cunqueiro;MEDDI, Franco;
2012

Abstract

The first measurements of the invariant differential cross sections of inclusive pi(0) and eta meson production at mid-rapidity in proton-proton collisions root s = 0.9 TeV and root s = 7 TeV are reported. The pi(0) measurement covers the ranges 0.4 < p(T) < 7 GeV/c and 0.3 < p(T) < 25 GeV/c for these two energies, respectively. The production of eta mesons was measured at root s = 7 TeV in the range 0.4 < p(T) < 15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the pi(0) spectrum at root s = 0.9 TeV, overestimate those of pi(0) and eta mesons at root s = 7 TeV, but agree with the measured eta/pi(0) ratio at root s = 7 TeV. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
2012
01 Pubblicazione su rivista::01a Articolo in rivista
Neutral pion and eta meson production in proton-proton collisions at root s=0.9 TeV and root s=7 TeV / B., A., A. A., Q., D., A., A. M., A., M. M., A., G. A., R., A. G., A., A., A., S. A., S., Z., A., N., A., A. A., M., S. U., A., A., A., D., A., B., A., R. A., M., A., A., A., A., E. A., A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 717:(2012), pp. 162-172. [10.1016/j.physletb.2012.09.015]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/552703
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