Monday, March 11, 2013

1303.2084 (ATLAS Collaboration)

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

ATLAS Collaboration
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 3.1View original:

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