Multiplicity dependence of the average transverse momentum in pp, p-Pb, and Pb-Pb collisions at the LHC
By Alice Collaboration. 2013
161 citations recorded by the source corpus.
The average transverse momentum (p(T)) versus the charged-particle multiplicity N-ch was measured in p-Pb collisions at a collision energy per nucleon-nucleon root S-NN = 5.02 TeV and in pp collisions at collision energies of root s = 0.9, 2.76, and 7 TeV in the kinematic range 0.15 < p(T) < 10.0 GeV/c and vertical bar eta vertical bar < 0.3 with the ALICE apparatus at the LHC. These data are compared to results in Pb-Pb collisions at root S-NN = 2.76 TeV at similar charged-particle multiplicities. In pp and p-Pb collisions, a strong increase of (p(T)) with N-ch is observed, which is much stronger than that measured in Pb-Pb collisions. For pp collisions, this could be attributed, within a model of hadronizing strings, to multiple-parton interactions and to a final-state color reconnection mechanism. The data in p-Pb and Pb-Pb collisions cannot be described by an incoherent superposition of nucleon-nucleon collisions and pose a challenge to most of the event generators. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/69eb85cc9b86d9d55f24853994d6d9799360110c
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In Nuclear and High Energy Physics
Citations in the corpus
- String formation beyond leading colour (2015, unknown): “Measurements of this quantity in minimum-bias events, first made at the ISR [48] and since by UA1 [49], CDF [50,51] and the LHC experiments [52–54], reveal that 〈p⊥〉 grows with nch, as can be seen in the plots in fig.”
- Jet measurements in heavy ion physics (2017, background): “Fig- 23 ure 11 shows a similar compilation of results from the LHC, demonstrating that this is also true at higher energies.”