Transverse momentum spectra of charged particles in proton-proton collisions at root s=900 GeV with ALICE at the LHC

0355546 - ÚJF 2011 RIV NL eng J - Journal Article
Aamodt, K. - Abel, N. - Abeysekara, U. - Quintana, A.A. - Abramyan, A. - Adamová, Dagmar - Bielčík, Jaroslav - Bielčíková, Jana - Kapitán, Jan - Kushpil, Svetlana - Kushpil, Vasilij - Pachr, M. - Petráček, Vojtěch - Rak, Jan - Šumbera, Michal - Tlustý, David - Wagner, Vladimír … Total 1062 authors
Transverse momentum spectra of charged particles in proton-proton collisions at root s=900 GeV with ALICE at the LHC.
Physics Letters. B. Roč. 693, č. 2 (2010), s. 53-68. ISSN 0370-2693. E-ISSN 1873-2445
Institutional research plan: CEZ:AV0Z10480505
Keywords : ALICE * LHC * Transverse momentum
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 5.255, year: 2010

The inclusive charged particle transverse momentum distribution is measured in proton-proton collisions at root s = 900 GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity region (vertical bar eta vertical bar < 0.8) over the transverse momentum range 0.15 < p(T) < 10 GeV/c. The correlation between transverse momentum and particle multiplicity is also studied. Results are presented for inelastic (INEL) and non-single-diffractive (NSD) events. The average transverse momentum for vertical bar eta vertical bar < 0.8 is p(T)(INEL) = 0.483 +/- 0.001 (stat.) +/- 0.007 (syst.) GeV/c and p(T)(NSD) = 0.489 +/- 0.001 (stat.) +/- 0.007 (syst.) GeV/c, respectively. The data exhibit a slightly larger p(T) than measurements in wider pseudorapidity intervals. The results are compared to simulations with the Monte Carlo event generators PYTHIA and PHOJET.
Permanent Link: http://hdl.handle.net/11104/0194292