Long-range angular correlations on the near and away side in p-Pb collisions at sqrt(sNN) = 5.02 TeV

B. Abelev; N. Arbor; G. Conesa Balbastre; J. Faivre; C. Furget; R. Guernane; S. Kox; J.S. Real; C. Silvestre; R. Vernet; I. Belikov; B. Hippolyte; C. Kuhn; L. Molnar; C. Roy; X. Sanchez Castro; S. Senyukov; Laurent Aphecetche; Guillaume Batigne; E. Bergognon; M. Bregant; H. Delagrange; O. Driga; B. Erazmus; Magali Estienne; Marie Germain; A. Lardeux; Gines Martinez Garcia; A. Mas; L. Massacrier; A. Matyja; Philippe Pillot; Y. Schutz; Alexandre Shabetai; Diego Stocco; C. Cheshkov; B. Cheynis; L. Ducroux; Maxime Guilbaud; R. Tieulent; A. Uras; Y. Zoccarato; Y.W. Baek; V. Barret; N. Bastid; P. Crochet; P. Dupieux; R. Ichou; X. Lopez; F. Manso; M. Marchisone; S. Porteboeuf-Houssais; P. Rosnet; B. Vulpescu; X. Zhang; B. Boyer; B. Espagnon; C. Suire; J.D. Tapia Takaki; L. Valencia Palomo

doi:10.1016/j.physletb.2013.01.012

Journal Articles Physics Letters B Year : 2013

Long-range angular correlations on the near and away side in p-Pb collisions at sqrt(sNN) = 5.02 TeV

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B. Abelev

Function : Author

N. Arbor

Function : Author

Laboratoire de Physique Subatomique et de Cosmologie

G. Conesa Balbastre

Function : Author
PersonId : 737477
IdHAL : conesa-balbastre-gustavo
ORCID : 0000-0001-5283-3520

Laboratoire de Physique Subatomique et de Cosmologie

J. Faivre

Function : Author

C. Furget

Function : Author

Laboratoire de Physique Subatomique et de Cosmologie

R. Guernane

Function : Author

Laboratoire de Physique Subatomique et de Cosmologie

S. Kox

Function : Author

Laboratoire de Physique Subatomique et de Cosmologie

J.S. Real

Function : Author
PersonId : 737490
IdHAL : jean-sebastien-real
ORCID : 0000-0003-1584-783X
IdRef : 156873133

Laboratoire de Physique Subatomique et de Cosmologie

C. Silvestre

Function : Author

Laboratoire de Physique Subatomique et de Cosmologie

R. Vernet

Function : Author

Centre de Calcul de l'IN2P3

I. Belikov

Function : Author

Département Recherches Subatomiques

B. Hippolyte

Function : Author

Département Recherches Subatomiques

C. Kuhn

Function : Author

Département Recherches Subatomiques

L. Molnar

Function : Author

Département Recherches Subatomiques

C. Roy

Function : Author
PersonId : 742351
IdHAL : christelle-roy
ORCID : 0000-0001-5920-6271

Département Recherches Subatomiques

X. Sanchez Castro

Function : Author

Département Recherches Subatomiques

S. Senyukov

Function : Author

Département Recherches Subatomiques

Laurent Aphecetche

Function : Author
PersonId : 2010
IdHAL : laurent-aphecetche
ORCID : 0000-0001-7662-3878
IdRef : 113847653

Laboratoire SUBATECH Nantes

Guillaume Batigne

Function : Author
PersonId : 175820
IdHAL : guillaume-batigne
ORCID : 0000-0001-8638-6300
IdRef : 077207874

Laboratoire SUBATECH Nantes

E. Bergognon

Function : Author

Laboratoire SUBATECH Nantes

M. Bregant

Function : Author

Laboratoire SUBATECH Nantes

H. Delagrange

Function : Author

Laboratoire SUBATECH Nantes

O. Driga

Function : Author

Laboratoire SUBATECH Nantes

B. Erazmus

Function : Author
PersonId : 1178907
IdRef : 033726485

Laboratoire SUBATECH Nantes

Magali Estienne

Function : Author
PersonId : 179790
IdHAL : magali-estienne
ORCID : 0000-0003-0687-5580

Laboratoire SUBATECH Nantes

Marie Germain

Function : Author
PersonId : 170960
IdHAL : marie-germain
ORCID : 0000-0001-7382-1609
IdRef : 176579958

Laboratoire SUBATECH Nantes

A. Lardeux

Function : Author

Laboratoire SUBATECH Nantes

Gines Martinez Garcia

Function : Author
PersonId : 169952
IdHAL : gines-martinez
ORCID : 0000-0002-8657-6742
IdRef : 068952961

Laboratoire SUBATECH Nantes

A. Mas

Function : Author

Laboratoire SUBATECH Nantes

L. Massacrier

Function : Author

Laboratoire SUBATECH Nantes

A. Matyja

Function : Author

Laboratoire SUBATECH Nantes

Philippe Pillot

Function : Author
PersonId : 175815
IdHAL : ppillot
ORCID : 0000-0002-9067-0803

Laboratoire SUBATECH Nantes

Y. Schutz

Function : Author

Laboratoire SUBATECH Nantes

Alexandre Shabetai

Function : Author
PersonId : 181202
IdHAL : alexandre-shabetai
ORCID : 0000-0003-3069-726X

Laboratoire SUBATECH Nantes

Diego Stocco

Function : Author
PersonId : 170966
IdHAL : diego-stocco
ORCID : 0000-0002-5377-5163
IdRef : 204479150

Laboratoire SUBATECH Nantes

C. Cheshkov

Function : Author

Institut de Physique Nucléaire de Lyon

B. Cheynis

Function : Author
PersonId : 750577
IdHAL : brigitte-cheynis
IdRef : 032215606

Institut de Physique Nucléaire de Lyon

L. Ducroux

Function : Author

Institut de Physique Nucléaire de Lyon

Maxime Guilbaud

Function : Author
PersonId : 177174
IdHAL : maxime-guilbaud
ORCID : 0000-0001-5990-482X
IdRef : 236157566

Institut de Physique Nucléaire de Lyon

R. Tieulent

Function : Author

Institut de Physique Nucléaire de Lyon

A. Uras

Function : Author

Institut de Physique Nucléaire de Lyon

Y. Zoccarato

Function : Author

Institut de Physique Nucléaire de Lyon

Y.W. Baek

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

V. Barret

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

N. Bastid

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

P. Crochet

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

P. Dupieux

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

R. Ichou

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

X. Lopez

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

F. Manso

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

M. Marchisone

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

S. Porteboeuf-Houssais

Function : Author
PersonId : 1350722
IdHAL : sarah-porteboeuf
ORCID : 0000-0002-2646-6189

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

P. Rosnet

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

B. Vulpescu

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

X. Zhang

Function : Author

Laboratoire de Physique Corpusculaire - Clermont-Ferrand

B. Boyer

Function : Author
PersonId : 11377
IdHAL : bertrand-boyer
ORCID : 0000-0001-6427-9491
IdRef : 150548761

Institut de Physique Nucléaire d'Orsay

B. Espagnon

Function : Author

Institut de Physique Nucléaire d'Orsay

C. Suire

Function : Author

Institut de Physique Nucléaire d'Orsay

J.D. Tapia Takaki

Function : Author

Institut de Physique Nucléaire d'Orsay

L. Valencia Palomo

Function : Author

Institut de Physique Nucléaire d'Orsay

Abstract

Angular correlations between charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV for transverse momentum ranges within 0.5 < pT,assoc < pT,trig < 4 GeV/c. The correlations are measured over two units of pseudorapidity and full azimuthal angle in different intervals of event multiplicity, and expressed as associated yield per trigger particle. Two long-range ridge-like structures, one on the near side and one on the away side, are observed when the per-trigger yield obtained in low-multiplicity events is subtracted from the one in high-multiplicity events. The excess on the near-side is qualitatively similar to that recently reported by the CMS collaboration, while the excess on the away-side is reported for the first time. The two-ridge structure projected onto azimuthal angle is quantified with the second and third Fourier coefficients as well as by near-side and away-side yields and widths. The yields on the near side and on the away side are equal within the uncertainties for all studied event multiplicity and pT bins, and the widths show no significant evolution with event multiplicity or pT. These findings suggest that the near-side ridge is accompanied by an essentially identical away-side ridge.

Domains

High Energy Physics - Experiment [hep-ex] Nuclear Experiment [nucl-ex]

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https://in2p3.hal.science/in2p3-00763590

Submitted on : Tuesday, December 11, 2012-10:44:54 AM

Last modification on : Tuesday, September 17, 2024-3:58:12 PM

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in2p3-00763590 , version 1 (11-12-2012)

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HAL Id : in2p3-00763590 , version 1
ARXIV : 1212.2001
DOI : 10.1016/j.physletb.2013.01.012

Cite

B. Abelev, N. Arbor, G. Conesa Balbastre, J. Faivre, C. Furget, et al.. Long-range angular correlations on the near and away side in p-Pb collisions at sqrt(sNN) = 5.02 TeV. Physics Letters B, 2013, 719, pp.29-41. ⟨10.1016/j.physletb.2013.01.012⟩. ⟨in2p3-00763590⟩

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Long-range angular correlations on the near and away side in p-Pb collisions at sqrt(sNN) = 5.02 TeV

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