Measurement of multi-particle azimuthal correlations in pp, p + Pb and low-multiplicity Pb + Pb collisions with the ATLAS detector
Aaboud, M ; Aad, G ; Abbott, B. ; Abdallah, J ; Abdinov, O ; Abeloos, B ; Åkesson, Torsten LU
; Bocchetta, Simona
LU
; Doglioni, Caterina
LU
and Hedberg, Vincent
LU
, et al.
(2017)
In European Physical Journal C
77(6).
- Abstract
- Multi-particle cumulants and corresponding Fourier harmonics are measured for azimuthal angle distributions of charged particles in pp collisions at s = 5.02 and 13 TeV and in p + Pb collisions at sNN = 5.02 TeV, and compared to the results obtained for low-multiplicity Pb+Pb collisions at sNN = 2.76 TeV. These measurements aim to assess the collective nature of particle production. The measurements of multi-particle cumulants confirm the evidence for collective phenomena in p + Pb and low-multiplicity Pb+Pb collisions. On the other hand, the pp results for four-particle cumulants do not demonstrate collective behaviour, indicating that they may be biased by contributions from non-flow correlations. A comparison of multi-particle cumulants... (More)
- Multi-particle cumulants and corresponding Fourier harmonics are measured for azimuthal angle distributions of charged particles in pp collisions at s = 5.02 and 13 TeV and in p + Pb collisions at sNN = 5.02 TeV, and compared to the results obtained for low-multiplicity Pb+Pb collisions at sNN = 2.76 TeV. These measurements aim to assess the collective nature of particle production. The measurements of multi-particle cumulants confirm the evidence for collective phenomena in p + Pb and low-multiplicity Pb+Pb collisions. On the other hand, the pp results for four-particle cumulants do not demonstrate collective behaviour, indicating that they may be biased by contributions from non-flow correlations. A comparison of multi-particle cumulants and derived Fourier harmonics across different collision systems is presented as a function of the charged-particle multiplicity. For a given multiplicity, the measured Fourier harmonics are largest in Pb+Pb, smaller in p + Pb and smallest in pp collisions. The pp results show no dependence on the collision energy, nor on the multiplicity. © 2017, CERN for the benefit of the ATLAS collaboration. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1e170607-fdf5-4aa6-af2a-13ae5c67e34b
- author
- Aaboud, M
; Aad, G
; Abbott, B.
; Abdallah, J
; Abdinov, O
; Abeloos, B
; Åkesson, Torsten
LU
; Bocchetta, Simona
LU
; Doglioni, Caterina
LU
and Hedberg, Vincent
LU
, et al. (More)
- Aaboud, M
; Aad, G
; Abbott, B.
; Abdallah, J
; Abdinov, O
; Abeloos, B
; Åkesson, Torsten
LU
; Bocchetta, Simona
LU
; Doglioni, Caterina
LU
; Hedberg, Vincent
LU
; Jarlskog, Göran
LU
; Kalderon, Charles
LU
; Lytken, Else
LU
; Mjörnmark, Ulf
LU
; Poulsen, Trine
LU
; Smirnova, Oxana
LU
and Viazlo, Oleksandr
LU
(Less)
- author collaboration
- organization
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 77
- issue
- 6
- article number
- 428
- publisher
- Springer
- external identifiers
-
- scopus:85021336984
- pmid:29200942
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-017-4988-1
- language
- English
- LU publication?
- yes
- additional info
- Export Date: 12 July 2017
- id
- 1e170607-fdf5-4aa6-af2a-13ae5c67e34b
- date added to LUP
- 2017-07-12 11:53:11
- date last changed
- 2023-04-07 19:15:03
@article{1e170607-fdf5-4aa6-af2a-13ae5c67e34b,
abstract = {{Multi-particle cumulants and corresponding Fourier harmonics are measured for azimuthal angle distributions of charged particles in pp collisions at s = 5.02 and 13 TeV and in p + Pb collisions at sNN = 5.02 TeV, and compared to the results obtained for low-multiplicity Pb+Pb collisions at sNN = 2.76 TeV. These measurements aim to assess the collective nature of particle production. The measurements of multi-particle cumulants confirm the evidence for collective phenomena in p + Pb and low-multiplicity Pb+Pb collisions. On the other hand, the pp results for four-particle cumulants do not demonstrate collective behaviour, indicating that they may be biased by contributions from non-flow correlations. A comparison of multi-particle cumulants and derived Fourier harmonics across different collision systems is presented as a function of the charged-particle multiplicity. For a given multiplicity, the measured Fourier harmonics are largest in Pb+Pb, smaller in p + Pb and smallest in pp collisions. The pp results show no dependence on the collision energy, nor on the multiplicity. © 2017, CERN for the benefit of the ATLAS collaboration.}},
author = {{Aaboud, M and Aad, G and Abbott, B. and Abdallah, J and Abdinov, O and Abeloos, B and Åkesson, Torsten and Bocchetta, Simona and Doglioni, Caterina and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Lytken, Else and Mjörnmark, Ulf and Poulsen, Trine and Smirnova, Oxana and Viazlo, Oleksandr}},
issn = {{1434-6044}},
language = {{eng}},
number = {{6}},
publisher = {{Springer}},
series = {{European Physical Journal C}},
title = {{Measurement of multi-particle azimuthal correlations in pp, p + Pb and low-multiplicity Pb + Pb collisions with the ATLAS detector}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-017-4988-1}},
doi = {{10.1140/epjc/s10052-017-4988-1}},
volume = {{77}},
year = {{2017}},
}