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Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p + Pb collisions measured by the ATLAS experiment

Publication ,  Journal Article
Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Abeloos, B; Aben, R; AbouZeid, OS; Abraham, NL; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y ...
Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics
December 10, 2016
Published version (DOI)

Measurements of the per-event charged-particle yield as a function of the charged-particle transverse momentum and rapidity are performed using p+Pb collision data collected by the ATLAS experiment at the LHC at a centre-of-mass energy of sNN=5.02TeV. Charged particles are reconstructed over pseudorapidity |η|<2.3 and transverse momentum between 0.1 GeV and 22 GeV in a dataset corresponding to an integrated luminosity of 1 μb−1. The results are presented in the form of charged-particle nuclear modification factors, where the p+Pb charged-particle multiplicities are compared between central and peripheral p+Pb collisions as well as to charged-particle cross sections measured in pp collisions. The p+Pb collision centrality is characterized by the total transverse energy measured in −4.9<η<−3.1, which is in the direction of the outgoing lead beam. Three different estimations of the number of nucleons participating in the p+Pb collision are carried out using the Glauber model and two Glauber–Gribov colour-fluctuation extensions to the Glauber model. The values of the nuclear modification factors are found to vary significantly as a function of rapidity and transverse momentum. A broad peak is observed for all centralities and rapidities in the nuclear modification factors for charged-particle transverse momentum values around 3 GeV. The magnitude of the peak increases for more central collisions as well as rapidity ranges closer to the direction of the outgoing lead nucleus.

Duke Scholars

Alfred T. Goshaw
Author Alfred T. Goshaw Physics
Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics
Mark C. Kruse
Author Mark C. Kruse Physics
Seog Oh
Author Seog Oh Physics
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Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2016.10.053

ISSN

0370-2693

Publication Date

December 10, 2016

Volume

763

Start / End Page

313 / 336

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics
 

Citation

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Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., … Artamonov, A. (2016). Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p + Pb collisions measured by the ATLAS experiment. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 763, 313–336. https://doi.org/10.1016/j.physletb.2016.10.053
Aad, G., B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos, R. Aben, O. S. AbouZeid, et al. “Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p + Pb collisions measured by the ATLAS experiment.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 763 (December 10, 2016): 313–36. https://doi.org/10.1016/j.physletb.2016.10.053.
Aad G, Abbott B, Abdallah J, Abdinov O, Abeloos B, Aben R, et al. Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p + Pb collisions measured by the ATLAS experiment. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2016 Dec 10;763:313–36.
Aad, G., et al. “Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p + Pb collisions measured by the ATLAS experiment.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 763, Dec. 2016, pp. 313–36. Scopus, doi:10.1016/j.physletb.2016.10.053.
Aad G, Abbott B, Abdallah J, Abdinov O, Abeloos B, Aben R, AbouZeid OS, Abraham NL, Abramowicz H, Abreu H, Abreu R, Abulaiti Y, Acharya BS, Adamczyk L, Adams DL, Adelman J, Adomeit S, Adye T, Affolder AA, Agatonovic-Jovin T, Agricola J, Aguilar-Saavedra JA, Ahlen SP, Ahmadov F, Aielli G, Akerstedt H, Åkesson TPA, Akimov AV, Alberghi GL, Albert J, Albrand S, Alconada Verzini MJ, Aleksa M, Aleksandrov IN, Alexa C, Alexander G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alison J, Alkire SP, Allbrooke BMM, Allen BW, Allport PP, Aloisio A, Alonso A, Alonso F, Alpigiani C, Alstaty M, Alvarez Gonzalez B, Álvarez Piqueras D, Alviggi MG, Amadio BT, Amako K, Amaral Coutinho Y, Amelung C, Amidei D, Amor Dos Santos SP, Amorim A, Amoroso S, Amundsen G, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anders JK, Anderson KJ, Andreazza A, Andrei V, Angelidakis S, Angelozzi I, Anger P, Angerami A, Anghinolfi F, Anisenkov AV, Anjos N, Annovi A, Antonelli M, Antonov A, Anulli F, Aoki M, Aperio Bella L, Arabidze G, Arai Y, Araque JP, Arce ATH, Arduh FA, Arguin JF, Argyropoulos S, Arik M, Armbruster AJ, Armitage LJ, Arnaez O, Arnold H, Arratia M, Arslan O, Artamonov A. Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p + Pb collisions measured by the ATLAS experiment. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2016 Dec 10;763:313–336.
Journal cover image

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2016.10.053

ISSN

0370-2693

Publication Date

December 10, 2016

Volume

763

Start / End Page

313 / 336

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics