Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/21961
 Title: Single-inclusive production of large-pT charged particles in hadronic collisions at TeV energies and perturbative QCD predictions Author: Arleo, FrançoisEnterria i Adan, David G. d'Yoon, Andre S. Keywords: Partícules (Física nuclear)Interaccions d'hadronsParticles (Physics)Hadron interactions Issue Date: 2010 Publisher: Springer; Scuola Internazionale Superiore di Studi Avanzati (SISSA) Abstract: The single inclusive spectrum of charged particles with transverse momenta pT = 3 – 150 GeV/c measured at midrapidity by the CDF experiment in proton-antiproton $$\left( {p - \bar{p}} \right)$$ collisions at $$\sqrt {s} = 1.96{\text{ TeV}}$$ is compared to next-to-leading order (NLO) perturbative QCD calculations using the most recent parametrizations of the parton distributions and parton-to-hadron fragmentation functions. Above pT ≈ 20 GeV/c, there is a very sizeable disagreement of the Tevatron data compared to the NLO predictions and to xT-scaling expectations, suggesting a problem in the experimental data. We also present the predictions for the pT-differential charged hadron spectra and the associated theoretical uncertainties for proton-proton (p-p) collisions at LHC energies $$\left( {\sqrt {s} = 0.9 - 14{\text{ TeV}}} \right)$$. Two procedures to estimate the charged hadron spectra at LHC heavy-ion collision energies $$\left(\sqrt {s} = 2.76 \right)$$, 5.5 TeV) from p-p measurements are suggested. Note: Reproducció del document publicat a: http://dx.doi.org/10.1007/JHEP06(2010)035 It is part of: Journal of High Energy Physics, 2010, vol. 6, núm. 35 URI: http://hdl.handle.net/2445/21961 ISSN: 1029-8479 Appears in Collections: Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

Files in This Item:
File Description SizeFormat