Measurement with the ATLAS detector of multi-particle azimuthal correlations in p+Pb collisions at sqrt(s_NN)=5.02 TeV - Archive ouverte HAL Access content directly
Journal Articles Physics Letters B Year : 2013

Measurement with the ATLAS detector of multi-particle azimuthal correlations in p+Pb collisions at sqrt(s_NN)=5.02 TeV

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G. Aad
E. Augé
D. Rousseau
Zhiqing Zhang
  • Function : Author
  • PersonId : 829631
S. Calvet
Y. Coadou
N. Berger
C. Goy
T. Hryn'Ova

Abstract

In order to study further the long-range correlations ("ridge") observed recently in p+Pb collisions at sqrt(s_NN) =5.02 TeV, the second-order azimuthal anisotropy parameter of charged particles, v_2, has been measured with the cumulant method using the ATLAS detector at the LHC. In a data sample corresponding to an integrated luminosity of approximately 1 microb^(-1), the parameter v_2 has been obtained using two- and four-particle cumulants over the pseudorapidity range |eta|<2.5. The results are presented as a function of transverse momentum and the event activity, defined in terms of the transverse energy summed over 3.1

Dates and versions

in2p3-00798869 , version 1 (11-03-2013)

Identifiers

Cite

G. Aad, S. Albrand, Q. Buat, B. Clement, J. Collot, et al.. Measurement with the ATLAS detector of multi-particle azimuthal correlations in p+Pb collisions at sqrt(s_NN)=5.02 TeV. Physics Letters B, 2013, 725, pp.60-78. ⟨10.1016/j.physletb.2013.06.057⟩. ⟨in2p3-00798869⟩
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