TY - JOUR
T1 - Measurement of prompt hadron production ratios in pp collisions at root s=0.9 and 7 TeV
AU - Aaij, R
AU - van den Brand, J.F.J.
AU - Dettori, F.
AU - Ketel, T.J.
AU - Koopman, R.
AU - Koppenburg, P.
AU - Lambert, R.W.
AU - Raven, H.G.
AU - Schiller, M.
AU - Tolk, S.
PY - 2012
Y1 - 2012
N2 - The charged−particle production ratios p/p, K −/K +, π −/π +, (p + p)/(π ++π −), (K ++K −)/(π + + π −) and (p+ p)/(K + + K −) are measured with the LHCb detector using 0.3 nb−1 of pp collisions delivered by the LHC at √s = 0.9 TeV and 1.8 nb−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 p/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 p/p, K −/K +, π −/π +, (p + p)/(π ++π −), (K ++K −)/(π + + π −) and (p+ p)/(K + + K −) are measured with the LHCb detector using 0.3 nb−1 of pp collisions delivered by the LHC at √s = 0.9 TeV and 1.8 nb−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 p/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 - 1434-6044
VL - 72
JO - European Physical Journal C. Particles and Fields
JF - European Physical Journal C. Particles and Fields
IS - 10
M1 - 2168
ER -
