TY - JOUR
T1 - Neutral pion and ¿ meson production in proton-proton collisions at vs=0.9 TeV and vs=7 TeV
AU - Abelev, Betty
AU - Bøggild, Hans
AU - Bearden, Ian
AU - Christensen, Christian Holm
AU - Dalsgaard, Hans Hjersing
AU - Gaardhøje, Jens Jørgen
AU - Gulbrandsen, Kristjan Herlache
AU - Nielsen, Børge Svane
AU - Søgaard, Carsten
AU - Nygaard, Casper
PY - 2012/10/22
Y1 - 2012/10/22
N2 - The first measurements of the invariant differential cross sections of inclusive π0 and η meson production at mid-rapidity in proton-proton collisions at s=0.9TeV and s=7TeV are reported. The π0 measurement covers the ranges 0.4T<7GeV/c and 0.3T<25GeV/c for these two energies, respectively. The production of η mesons was measured at s=7TeV in the range 0.4T<15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the π0 spectrum at s=0.9TeV, overestimate those of π0 and η mesons at s=7TeV, but agree with the measured η/π0 ratio at s=7TeV.
AB - The first measurements of the invariant differential cross sections of inclusive π0 and η meson production at mid-rapidity in proton-proton collisions at s=0.9TeV and s=7TeV are reported. The π0 measurement covers the ranges 0.4T<7GeV/c and 0.3T<25GeV/c for these two energies, respectively. The production of η mesons was measured at s=7TeV in the range 0.4T<15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the π0 spectrum at s=0.9TeV, overestimate those of π0 and η mesons at s=7TeV, but agree with the measured η/π0 ratio at s=7TeV.
U2 - 10.1016/j.physletb.2012.09.015
DO - 10.1016/j.physletb.2012.09.015
M3 - Journal article
SN - 0370-2693
VL - 717
SP - 162
EP - 172
JO - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology
JF - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology
IS - 1-3
ER -