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Física Experimental de Alta Energía

Publicaciones

Measurement with the ATLAS detector of multi-particle azimuthal correlations in p+Pb collisions at sNN−−−−√=5.02 TeV

Publicaciones

Measurement with the ATLAS detector of multi-particle azimuthal correlations in p+Pb collisions at sNN−−−−√=5.02 TeV

Research areas:

Física Experimental de Alta Energía

Year:

2013

Type of Publication:

In Proceeding

Authors:

Journal:

Phys. Rev. Lett

Volume:

B725

Pages:

12

Abstract:

In order to study further the long-range correlations (“ridge”) observed recently in p+Pb collisions at sNN−−−√ = 5:02 TeV, the second-order azimuthal anisotropy parameter of charged particles, v2, 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 microbarn-1, the parameter v2 has been obtained using two- and four-particle cumulants over the pseudorapidity range |η| tent of the p+Pb collision system, the large magnitude of v2 and its similarity to hydrodynamic predictions provide additional evidence for the importance of final-state effects in p+Pb reactions. In order to study further the long-range correlations (''ridge'') observed recently in p+Pb collisions at s_N_N=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 @mb^-^1, the parameter v_2 has been obtained using two- and four-particle cumulants over the pseudorapidity range |@h|b reactions.

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