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Abstract:

ATLAS measurements of two-particle correlations are presented for s=5.02 and 13 TeV pp collisions and for sNN=5.02 TeV p+Pb collisions at the LHC. The correlation functions are measured as a function of relative azimuthal angle Δφ, and pseudorapidity separation Δη, using charged particles detected within the pseudorapidity interval |η|<2.5. Azimuthal modulation in the long-range component of the correlation function, with |Δη|>2, is studied using a template fitting procedure to remove a "back-to-back" contribution to the correlation function that primarily arises from hard-scattering processes. In addition to the elliptic, cos(2Δφ), modulation observed in a previous measurement, the pp correlation functions exhibit significant cos(3Δφ) and cos(4Δφ) modulation. The Fourier coefficients vn,n associated with the cos(nΔφ) modulation of the correlation functions for n=2-4 are measured as a function of charged-particle multiplicity and charged-particle transverse momentum. The Fourier coefficients are observed to be compatible with cos(nφ) modulation of per-event single-particle azimuthal angle distributions. The single-particle Fourier coefficients vn are measured as a function of charged-particle multiplicity, and charged-particle transverse momentum for n=2-4. The integrated luminosities used in this analysis are, 64 nb-1 for the s=13 TeV pp data, 170 nb-1 for the s=5.02 TeV pp data, and 28 nb-1 for the sNN=5.02 TeV p+Pb data. © 2017 CERN.

Registro:

Documento: Artículo
Título:Measurements of long-range azimuthal anisotropies and associated Fourier coefficients for pp collisions at s =5.02 and 13 TeV and p+Pb collisions at sNN =5.02 TeV with the ATLAS detector
Autor:Aaboud, M. et al.
Este artículo contiene 2840 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2840 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2017
Volumen:96
Número:2
DOI: http://dx.doi.org/10.1103/PhysRevC.96.024908
Título revista:Physical Review C
Título revista abreviado:Phys. Rev. C
ISSN:24699985
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24699985_v96_n2_p_Aaboud

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Citas:

---------- APA ----------
(2017) . Measurements of long-range azimuthal anisotropies and associated Fourier coefficients for pp collisions at s =5.02 and 13 TeV and p+Pb collisions at sNN =5.02 TeV with the ATLAS detector. Physical Review C, 96(2).
http://dx.doi.org/10.1103/PhysRevC.96.024908
---------- CHICAGO ----------
Aaboud, M. "Measurements of long-range azimuthal anisotropies and associated Fourier coefficients for pp collisions at s =5.02 and 13 TeV and p+Pb collisions at sNN =5.02 TeV with the ATLAS detector" . Physical Review C 96, no. 2 (2017).
http://dx.doi.org/10.1103/PhysRevC.96.024908
---------- MLA ----------
Aaboud, M. "Measurements of long-range azimuthal anisotropies and associated Fourier coefficients for pp collisions at s =5.02 and 13 TeV and p+Pb collisions at sNN =5.02 TeV with the ATLAS detector" . Physical Review C, vol. 96, no. 2, 2017.
http://dx.doi.org/10.1103/PhysRevC.96.024908
---------- VANCOUVER ----------
Aaboud, M. Measurements of long-range azimuthal anisotropies and associated Fourier coefficients for pp collisions at s =5.02 and 13 TeV and p+Pb collisions at sNN =5.02 TeV with the ATLAS detector. Phys. Rev. C. 2017;96(2).
http://dx.doi.org/10.1103/PhysRevC.96.024908