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Abstract:

In order to study further the long-range correlations ("ridge") observed recently in p + Pb collisions at √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 μb -1 , the parameter v 2 has been obtained using two- and four-particle cumulants over the pseudorapidity range |η|<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 < η <4.9 in the direction of the Pb beam. They show features characteristic of collective anisotropic flow, similar to that observed in Pb + Pb collisions. A comparison is made to results obtained using two-particle correlation methods, and to predictions from hydrodynamic models of p +Pb collisions. Despite the small transverse spatial extent of the p + Pb collision system, the large magnitude of v 2 and its similarity to hydrodynamic predictions provide additional evidence for the importance of final-state effects in p + Pb reactions. © 2013 CERN. Published by Elsevier B.V.

Registro:

Documento: Artículo
Título:Measurement with the ATLAS detector of multi-particle azimuthal correlations in p + Pb collisions at √s NN = 5.02 TeV
Autor:Aad, G. et al.
Este artículo contiene 2922 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2922 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2013
Volumen:725
Número:1-3
Página de inicio:60
Página de fin:78
DOI: http://dx.doi.org/10.1016/j.physletb.2013.06.057
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v725_n1-3_p60_Aad

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Citas:

---------- APA ----------
(2013) . Measurement with the ATLAS detector of multi-particle azimuthal correlations in p + Pb collisions at √s NN = 5.02 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 725(1-3), 60-78.
http://dx.doi.org/10.1016/j.physletb.2013.06.057
---------- CHICAGO ----------
Aad, G. "Measurement with the ATLAS detector of multi-particle azimuthal correlations in p + Pb collisions at √s NN = 5.02 TeV" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 725, no. 1-3 (2013) : 60-78.
http://dx.doi.org/10.1016/j.physletb.2013.06.057
---------- MLA ----------
Aad, G. "Measurement with the ATLAS detector of multi-particle azimuthal correlations in p + Pb collisions at √s NN = 5.02 TeV" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 725, no. 1-3, 2013, pp. 60-78.
http://dx.doi.org/10.1016/j.physletb.2013.06.057
---------- VANCOUVER ----------
Aad, G. Measurement with the ATLAS detector of multi-particle azimuthal correlations in p + Pb collisions at √s NN = 5.02 TeV. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2013;725(1-3):60-78.
http://dx.doi.org/10.1016/j.physletb.2013.06.057