TY - JOUR
T1 - Measurement of prompt hadron production ratios in pp collisions at s√= 0.9 and 7 TeV
AU - Playfer, Stephen
AU - The LHCb Collaboration
AU - Needham, Matthew
AU - Muheim, Franz
AU - Clarke, Peter
AU - Xie, Yuehong
AU - Eisenhardt, Stephan
PY - 2012/10
Y1 - 2012/10
N2 - The charged-particle production ratios pˉ/p, K−/K+, π−/π+, (p+pˉ)/(π++π−), (K++K−)/(π++π−) and (p+pˉ)/(K++K−) are measured with the LHCb detector using 0.3nb−1 of pp collisions delivered by the LHC at s√=0.9 TeV and 1.8nb−1 at s√=7 TeV. The measurements are performed as a function of transverse momentum pT and pseudorapidity η. The production ratios are compared to the predictions of several Monte Carlo generator settings, none of which are able to describe adequately all observables. The ratio pˉ/p is also considered as a function of rapidity loss, Δy≡ybeam−y, and is used to constrain models of baryon transport.
AB - The charged-particle production ratios pˉ/p, K−/K+, π−/π+, (p+pˉ)/(π++π−), (K++K−)/(π++π−) and (p+pˉ)/(K++K−) are measured with the LHCb detector using 0.3nb−1 of pp collisions delivered by the LHC at s√=0.9 TeV and 1.8nb−1 at s√=7 TeV. The measurements are performed as a function of transverse momentum pT and pseudorapidity η. The production ratios are compared to the predictions of several Monte Carlo generator settings, none of which are able to describe adequately all observables. The ratio pˉ/p is also considered as a function of rapidity loss, Δy≡ybeam−y, and is used to constrain models of baryon transport.
U2 - 10.1140/epjc/s10052-012-2168-x
DO - 10.1140/epjc/s10052-012-2168-x
M3 - Article
SN - 1434-6052
VL - C72
SP - 2168
JO - The European Physical Journal C
JF - The European Physical Journal C
ER -