The elliptic, v2, triangular, v3, and quadrangular, v4, azimuthal anisotropic flow coefficients are measured for unidentified charged particles, pions, and (anti-)protons in Pb–Pb collisions at √sNN = 2.76 TeV with the ALICE detector at the Large Hadron Collider. Results obtained with the event plane and four-particle cumulant methods are reported for the pseudo-rapidity range |η| < 0.8 at different collision centralities and as a function of transverse momentum, pT, out to pT = 20 GeV/c. The observed non-zero elliptic and triangular flow depends only weakly on transverse momentum for pT > 8 GeV/c. The small pT dependence of the difference between elliptic flow results obtained from the event plane and fourparticle cumulant methods suggests a common origin of flow fluctuations up to pT = 8 GeV/c. The magnitude of the (anti-)proton elliptic and triangular flow is larger than that of pions out to at least pT =8 GeV/c indicating that the particle type dependence persists out to high pT.

B. Abelev, J. Adam, D. Adamová, A.M. Adare, M.M. Aggarwal, G. Aglieri Rinella, et al. (2013). Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb–Pb collisions at root s(NN)=2.76 Tev. PHYSICS LETTERS. SECTION B, 719(1-3), 18-28 [10.1016/j.physletb.2012.12.066].

Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb–Pb collisions at root s(NN)=2.76 Tev

AGOSTINELLI, ANDREA;A. Alici;ARCELLI, SILVIA;BASILE, MAURIZIO;BELLINI, FRANCESCA;CIFARELLI, LUISA;FALCHIERI, DAVIDE;GUERZONI, BARBARA;SCIOLI, GILDA;
2013

Abstract

The elliptic, v2, triangular, v3, and quadrangular, v4, azimuthal anisotropic flow coefficients are measured for unidentified charged particles, pions, and (anti-)protons in Pb–Pb collisions at √sNN = 2.76 TeV with the ALICE detector at the Large Hadron Collider. Results obtained with the event plane and four-particle cumulant methods are reported for the pseudo-rapidity range |η| < 0.8 at different collision centralities and as a function of transverse momentum, pT, out to pT = 20 GeV/c. The observed non-zero elliptic and triangular flow depends only weakly on transverse momentum for pT > 8 GeV/c. The small pT dependence of the difference between elliptic flow results obtained from the event plane and fourparticle cumulant methods suggests a common origin of flow fluctuations up to pT = 8 GeV/c. The magnitude of the (anti-)proton elliptic and triangular flow is larger than that of pions out to at least pT =8 GeV/c indicating that the particle type dependence persists out to high pT.
2013
B. Abelev, J. Adam, D. Adamová, A.M. Adare, M.M. Aggarwal, G. Aglieri Rinella, et al. (2013). Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb–Pb collisions at root s(NN)=2.76 Tev. PHYSICS LETTERS. SECTION B, 719(1-3), 18-28 [10.1016/j.physletb.2012.12.066].
B. Abelev;J. Adam;D. Adamová;A.M. Adare;M.M. Aggarwal;G. Aglieri Rinella;A.G. Agocs;A. Agostinelli;S. Aguilar Salazar;Z. Ahammed;A. Ahmad Masoodi;N. A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/386334
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