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. Fragmentation functions

B. Abelev, A. Abrahantes Quintana, D. Adamová, A.M. Adare, M.M. Aggarwal, G. Aglieri Rinella, et al. (2012). Neutral pion and η meson production in proton–proton collisions at sqrt(s) = 0.9 TeV and sqrt(s) = 7 TeV. PHYSICS LETTERS. SECTION B, 717, 162-172 [10.1016/j.physletb.2012.09.015].

Neutral pion and η meson production in proton–proton collisions at sqrt(s) = 0.9 TeV and sqrt(s) = 7 TeV

AGOSTINELLI, ANDREA;A. Alici;ARCELLI, SILVIA;BASILE, MAURIZIO;BELLINI, FRANCESCA;CIFARELLI, LUISA;GUERZONI, BARBARA;SCIOLI, GILDA;
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. Fragmentation functions
2012
B. Abelev, A. Abrahantes Quintana, D. Adamová, A.M. Adare, M.M. Aggarwal, G. Aglieri Rinella, et al. (2012). Neutral pion and η meson production in proton–proton collisions at sqrt(s) = 0.9 TeV and sqrt(s) = 7 TeV. PHYSICS LETTERS. SECTION B, 717, 162-172 [10.1016/j.physletb.2012.09.015].
B. Abelev;A. Abrahantes Quintana;D. Adamová;A.M. Adare;M.M. Aggarwal;G. Aglieri Rinella;A.G. Agocs;A. Agostinelli;S. Aguilar Salazar;Z. Ahammed;N. Ahm...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/142513
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