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

B. Abelev; J. Adam; D. Adamova; A.M. Adare; M.M. Aggarwal; Ian Bearden; Hans Bøggild; Hans Hjersing Dalsgaard; Christian Holm Christensen; Kristjan Herlache Gulbrandsen; Jens Jørgen Gaardhøje; Ante Bilandzic; Alexander Colliander Hansen; Børge Svane Nielsen; Casper Nygaard; Carsten Søgaard

doi:10.1103/PhysRevLett.110.082302

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

B. Abelev, J. Adam, D. Adamova, A.M. Adare, M.M. Aggarwal, Ian Bearden, Hans Bøggild, Hans Hjersing Dalsgaard, Christian Holm Christensen, Kristjan Herlache Gulbrandsen, Jens Jørgen Gaardhøje, Ante Bilandzic, Alexander Colliander Hansen, Børge Svane Nielsen, Casper Nygaard, Carsten Søgaard

Experimental Particle Physics

161 Citations (Scopus)

Abstract

The transverse momentum (p_T) distribution of primary charged particles is measured in minimum bias (non-single-diffractive) p+Pb collisions at √s_NN=5.02 TeV with the ALICE detector at the LHC. The p _T 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.

Original language	English
Article number	082302
Journal	Physical Review Letters
Volume	110
Issue number	8
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.110.082302
Publication status	Published - 21 Feb 2013

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Abelev, B., Adam, J., Adamova, D., Adare, A. M., Aggarwal, M. M., Bearden, I., Bøggild, H., Dalsgaard, H. H., Christensen, C. H., Gulbrandsen, K. H., Gaardhøje, J. J., Bilandzic, A., Hansen, A. C., Nielsen, B. S., Nygaard, C., & Søgaard, C. (2013). Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p plus Pb Collisions at root(NN)-N-s=5.02 TeV. Physical Review Letters, 110(8), [082302]. https://doi.org/10.1103/PhysRevLett.110.082302

Abelev, B, Adam, J, Adamova, D, Adare, AM, Aggarwal, MM, Bearden, I , Bøggild, H, Dalsgaard, HH, Christensen, CH , Gulbrandsen, KH , Gaardhøje, JJ, Bilandzic, A, Hansen, AC, Nielsen, BS, Nygaard, C & Søgaard, C 2013, 'Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p plus Pb Collisions at root(NN)-N-s=5.02 TeV', Physical Review Letters, vol. 110, no. 8, 082302. https://doi.org/10.1103/PhysRevLett.110.082302

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

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

author = "B. Abelev and J. Adam and D. Adamova and A.M. Adare and M.M. Aggarwal and Ian Bearden and Hans B{\o}ggild and Dalsgaard, {Hans Hjersing} and Christensen, {Christian Holm} and Gulbrandsen, {Kristjan Herlache} and Gaardh{\o}je, {Jens J{\o}rgen} and Ante Bilandzic and Hansen, {Alexander Colliander} and Nielsen, {B{\o}rge Svane} and Casper Nygaard and Carsten S{\o}gaard",

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AU - Abelev, B.

AU - Adam, J.

AU - Adamova, D.

AU - Adare, A.M.

AU - Aggarwal, M.M.

AU - Bearden, Ian

AU - Bøggild, Hans

AU - Dalsgaard, Hans Hjersing

AU - Christensen, Christian Holm

AU - Gulbrandsen, Kristjan Herlache

AU - Gaardhøje, Jens Jørgen

AU - Bilandzic, Ante

AU - Hansen, Alexander Colliander

AU - Nielsen, Børge Svane

AU - Nygaard, Casper

AU - Søgaard, Carsten

PY - 2013/2/21

Y1 - 2013/2/21

N2 - The transverse momentum (pT) distribution of primary charged particles is measured in minimum bias (non-single-diffractive) p+Pb collisions at √sNN=5.02 TeV with the ALICE detector at the LHC. The p T spectra measured near central rapidity in the range 0.5T<20 GeV/c exhibit a weak pseudorapidity dependence. The nuclear modification factor RpPb is consistent with unity for pT above 2 GeV/c. This measurement indicates that the strong suppression of hadron production at high pT observed in Pb+Pb collisions at the LHC is not due to an initial-state effect. The measurement is compared to theoretical calculations.

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

U2 - 10.1103/PhysRevLett.110.082302

DO - 10.1103/PhysRevLett.110.082302

M3 - Journal article

C2 - 23473136

SN - 0031-9007

VL - 110

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 082302

ER -

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

Abstract

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