Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p plus Pb Collisions at root(NN)-N-s=5.02 TeV

doi:10.1103/PHYSREVLETT.110.082302

Open AccessJournal ArticleDOI

Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p plus Pb Collisions at root(NN)-N-s=5.02 TeV

Betty Abelev, +1008 more

- 21 Feb 2013 -

Physical Review Letters

- Vol. 110, Iss: 8, pp 082302-082302

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TLDR

In this paper, the transverse momentum distribution of primary charged particles is measured in minimum bias (non-single-diffractive) p + Pb collisions at the ALICE detector at the LHC.

Abstract:

The transverse momentum (pT) distribution of primary charged particles is measured in minimum bias (non-single-diffractive) p + Pb collisions at root(NN)-N-s = 5.02 TeV with the ALICE detector at the LHC. The pT spectra measured near central rapidity in the range 0.5< p(T) < 20 GeV/c exhibit a weak pseudorapidity dependence. The nuclear modification factor R-pPb is consistent with unity for p(T) above 2 GeV/c. This measurement indicates that the strong suppression of hadron production at high p(T) observed in Pb + Pb collisions at the LHC is not due to an initial-state effect. The measurement is compared to theoretical calculations. DOI: 10.1103/PhysRevLett.110.082302

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