Measurement of long-range pseudorapidity correlations and azimuthal harmonics in $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV proton-lead collisions with the ATLAS detector - IN2P3 - Institut national de physique nucléaire et de physique des particules
Article Dans Une Revue Physical Review C Année : 2014

Measurement of long-range pseudorapidity correlations and azimuthal harmonics in $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV proton-lead collisions with the ATLAS detector

G. Aad (1) , Z. Barnovska (2) , N. Berger (2) , M. Delmastro (2) , L. Di Ciaccio (2) , T.K.O. Doan (2) , S. Elles (2) , C. Goy (2) , T. Hryn'Ova (2) , S. Jézéquel (2) , H. Keoshkerian (2) , I. Koletsou (2) , R. Lafaye (2) , J. Leveque (2) , V.P. Lombardo (2) , N. Massol (2) , H. Przysiezniak (2) , G. Sauvage (2) , E. Sauvan (2) , M. Schwoerer (2) , O. Simard (2) , T. Todorov (2) , I. Wingerter-Seez (2) , S. Albrand (3) , J. Brown (3) , J. Collot (3) , S. Crépé-Renaudin (3) , B. Dechenaux (3) , P.A. Delsart (3) , C. Gabaldon (3) , M.H. Genest (3) , J.Y. Hostachy (3) , F. Ledroit-Guillon (3) , A. Lleres (3) , A. Lucotte (3) , F. Malek (3) , C. Monini (3) , J. Stark (3) , B. Trocmé (3) , M. Wu (3) , L. Alio (1) , M. Barbero (1) , C. Bertella (1) , J. C. Clémens (1) , Y. Coadou (1) , Sara Diglio (1) , F. Djama (1) , L. Feligioni (1) , D. Hoffmann (1) , F. Hubaut (1) , E. B. F. G. Knoops (1) , E. Le Guirriec (1) , B. Li (1) , D. Madaffari (1) , K. Mochizuki (1) , E. Monnier (1) , S. Muanza (1) , Y. Nagai (1) , P. Pralavorio (1) , A. Rozanov (1) , T. Serre (1) , M. Talby (1) , E. Tiouchichine (1) , S. Tisserant (1) , J. Toth (1) , F. Touchard (1) , M. Ughetto (1) , L. Vacavant (1) , S. Abdel Khalek (4) , A. Bassalat (4) , C. Becot (4) , S. Binet (4) , C. Bourdarios (4) , D. Charfeddine (4) , J.B. de Vivie de Regie (4) , L. Duflot (4) , M. Escalier (4) , L. Fayard (4) , D. Fournier (4) , J.-F. Grivaz (4) , T. Guillemin (4) , F. Hariri (4) , S. Henrot-Versillé (4) , J. Hrivnac (4) , L. Iconomidou-Fayard (4) , M. Kado (4) , A. Lounis (4) , N. Makovec (4) , L. Poggioli (4) , P. Puzo (4) , A. Renaud (4) , D. Rousseau (4) , G. Rybkin (4) , A.C. Schaffer (4) , E. Scifo (4) , L. Serin (4) , S. Simion (4) , R. Tanaka (4) , H.L. Tran (4) , D. Zerwas (4) , Zhiqing Zhang (4) , D. Boumediene (5) , Emmanuel Busato (5) , D. Calvet (5) , S. Calvet (5) , J. Donini (5) , E. Dubreuil (5) , N. Ghodbane (5) , G. Gilles (5) , Ph. Gris (5) , C. Guicheney (5) , H. Liao (5) , D. Pallin (5) , Daniela Paredes Hernández (5) , F. Podlyski (5) , C. Santoni (5) , Timothée Theveneaux-Pelzer (5) , Loïc Valery (5) , F. Vazeille (5)
G. Aad
N. Berger
C. Goy
T. Hryn'Ova
Y. Coadou
D. Rousseau
D. Zerwas
  • Fonction : Auteur
  • PersonId : 842996
Zhiqing Zhang
  • Fonction : Auteur
  • PersonId : 829631

Résumé

Measurements of two-particle correlation functions and the first five azimuthal harmonics, $v_1$ to $v_5$, are presented, using 28 $\mathrm{nb}^{-1}$ of $p$+Pb collisions at a nucleon-nucleon center-of-mass energy of $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV measured with the ATLAS detector at the LHC. Significant long-range ''ridge-like'' correlations are observed for pairs with small relative azimuthal angle ($|\Delta\phi|<\pi/3$) and back-to-back pairs ($|\Delta\phi|>2\pi/3$) over the transverse momentum range $0.44$ GeV. The $v_2(p_{\rm T})$, $v_3(p_{\rm T})$ and $v_4(p_{\rm T})$ are compared to the $v_n$ coefficients in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} =2.76$ TeV with similar event multiplicities. Reasonable agreement is observed after accounting for the difference in the average $p_{\rm T}$ of particles produced in the two collision systems.

Dates et versions

in2p3-01061868 , version 1 (08-09-2014)

Identifiants

Citer

G. Aad, Z. Barnovska, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Measurement of long-range pseudorapidity correlations and azimuthal harmonics in $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV proton-lead collisions with the ATLAS detector. Physical Review C, 2014, 90, pp.044906. ⟨10.1103/PhysRevC.90.044906⟩. ⟨in2p3-01061868⟩
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