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Abstract:

Two-particle correlations in relative azimuthal angle (Δρ) and pseudorapidity (Δη) are measured in √s NN =5.02 TeV p+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1 μb - 1 of data as a function of transverse momentum (p T ) and the transverse energy (ΣETPb) summed over 3.1<η<4.9 in the direction of the Pb beam. The correlation function, constructed from charged particles, exhibits a long-range (2<|Δη|<5) "near-side" (Δρ∼0) correlation that grows rapidly with increasing ΣETPb. A long-range "away-side" (Δρ∼π) correlation, obtained by subtracting the expected contributions from recoiling dijets and other sources estimated using events with small ΣETPb, is found to match the near-side correlation in magnitude, shape (in Δη and Δρ) and ΣETPb dependence. The resultant Δρ correlation is approximately symmetric about π/2, and is consistent with a dominant cos2Δρ modulation for all ΣETPb ranges and particle p T . © 2013 CERN.

Registro:

Documento: Artículo
Título:Observation of Associated Near-Side and Away-Side Long-Range Correlations in √s NN =5.02 TeV Proton-Lead Collisions with the ATLAS Detector
Autor:Aad, G. et al.
Este artículo contiene 2925 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2925 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Lead; ATLAS detectors; Azimuthal angle; Correlation function; Long range correlations; Pseudorapidities; Transverse energy; Transverse momenta; Two-particle correlations; Tellurium compounds
Año:2013
Volumen:110
Número:18
DOI: http://dx.doi.org/10.1103/PhysRevLett.110.182302
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v110_n18_p_Aad

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Citas:

---------- APA ----------
(2013) . Observation of Associated Near-Side and Away-Side Long-Range Correlations in √s NN =5.02 TeV Proton-Lead Collisions with the ATLAS Detector. Physical Review Letters, 110(18).
http://dx.doi.org/10.1103/PhysRevLett.110.182302
---------- CHICAGO ----------
Aad, G. "Observation of Associated Near-Side and Away-Side Long-Range Correlations in √s NN =5.02 TeV Proton-Lead Collisions with the ATLAS Detector" . Physical Review Letters 110, no. 18 (2013).
http://dx.doi.org/10.1103/PhysRevLett.110.182302
---------- MLA ----------
Aad, G. "Observation of Associated Near-Side and Away-Side Long-Range Correlations in √s NN =5.02 TeV Proton-Lead Collisions with the ATLAS Detector" . Physical Review Letters, vol. 110, no. 18, 2013.
http://dx.doi.org/10.1103/PhysRevLett.110.182302
---------- VANCOUVER ----------
Aad, G. Observation of Associated Near-Side and Away-Side Long-Range Correlations in √s NN =5.02 TeV Proton-Lead Collisions with the ATLAS Detector. Phys Rev Lett. 2013;110(18).
http://dx.doi.org/10.1103/PhysRevLett.110.182302