Measurement with the ATLAS detector of multi-particle azimuthal correlations in p+Pb collisions at sqrt(s_NN)=5.02 TeV
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(1)
,
(2)
,
(2)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(3)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(4)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(5)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
,
(6)
1
2
3
4
5
6
2
3
4
5
6
G. Aad
- Function : Author
- PersonId : 740309
- IdHAL : georges-aad
- ORCID : 0000-0002-6665-4934
- IdRef : 140392653
S. Crépé-Renaudin
- Function : Author
- PersonId : 742348
- IdHAL : sabine-crepe
- ORCID : 0000-0001-5980-5805
- IdRef : 118947249
M.H. Genest
- Function : Author
- PersonId : 735684
- IdHAL : marie-helene-genest
- ORCID : 0000-0002-4098-2024
- IdRef : 191694142
F. Malek
- Function : Author
- PersonId : 21915
- IdHAL : fairouz-malek
- ORCID : 0000-0002-0948-5775
- IdRef : 084171219
E. Augé
- Function : Author
- PersonId : 746609
- IdHAL : etienne-auge
- ORCID : 0000-0002-7328-7829
J.B. de Vivie de Regie
- Function : Author
- PersonId : 741567
- IdHAL : jean-baptiste-de-vivie
- ORCID : 0000-0001-9163-2211
- IdRef : 186392702
S. Henrot-Versillé
- Function : Author
- PersonId : 740081
- IdHAL : sophie-henrot-versille
- ORCID : 0000-0003-1218-2991
- IdRef : 191080403
D. Rousseau
- Function : Author
- PersonId : 184524
- IdHAL : david-rousseau
- ORCID : 0000-0001-7613-8063
- IdRef : 140465774
D. Calvet
- Function : Author
- PersonId : 738829
- IdHAL : david-calvet
- ORCID : 0000-0002-9953-5333
- IdRef : 175107963
Daniela Paredes Hernández
- Function : Author
- PersonId : 770353
- IdRef : 175107769
Timothée Theveneaux-Pelzer
- Function : Author
- PersonId : 929831
Y. Coadou
- Function : Author
- PersonId : 742418
- IdHAL : yann-coadou
- ORCID : 0000-0001-8195-7004
N. Berger
- Function : Author
- PersonId : 741762
- IdHAL : nicolas-berger
C. Goy
- Function : Author
- PersonId : 740078
- IdHAL : goycorinne
- ORCID : 0000-0002-1297-8925
- IdRef : 092030998
T. Hryn'Ova
- Function : Author
- PersonId : 178920
- IdHAL : thrynova
- ORCID : 0000-0001-5914-8614
- IdRef : 253167418
S. Jézéquel
- Function : Author
- PersonId : 739301
- IdHAL : stephane-jezequel
- ORCID : 0000-0001-7369-6975
- IdRef : 074440926
Abstract
In order to study further the long-range correlations ("ridge") observed recently in p+Pb collisions at sqrt(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 microb^(-1), the parameter v_2 has been obtained using two- and four-particle cumulants over the pseudorapidity range |eta|<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