Measurement of the centrality dependence of the charged-particle pseudorapidity distribution in proton–lead collisions at √sNN = 5.02 TeV with the ATLAS detector
Aad, G ; Abajyan, T. ; Abbott, B. ; Abdallah, J ; Abdel Khalek, S ; Abdinov, O ; Åkesson, Torsten LU
; Bocchetta, Simona
LU
; Bryngemark, Lene
LU
and Floderus, Anders
LU
, et al.
(2016)
In European Physical Journal C
76(4).
- Abstract
- The centrality dependence of the mean charged-particle multiplicity as a function of pseudorapidity is measured in approximately 1 (Formula presented.) b (Formula presented.) of proton–lead collisions at a nucleon–nucleon centre-of-mass energy of (Formula presented.) (Formula presented.) using the ATLAS detector at the Large Hadron Collider. Charged particles with absolute pseudorapidity less than 2.7 are reconstructed using the ATLAS pixel detector. The p + Pb collision centrality is characterised by the total transverse energy measured in the Pb-going direction of the forward calorimeter. The charged-particle pseudorapidity distributions are found to vary strongly with centrality, with an increasing asymmetry between the proton-going... (More)
- The centrality dependence of the mean charged-particle multiplicity as a function of pseudorapidity is measured in approximately 1 (Formula presented.) b (Formula presented.) of proton–lead collisions at a nucleon–nucleon centre-of-mass energy of (Formula presented.) (Formula presented.) using the ATLAS detector at the Large Hadron Collider. Charged particles with absolute pseudorapidity less than 2.7 are reconstructed using the ATLAS pixel detector. The p + Pb collision centrality is characterised by the total transverse energy measured in the Pb-going direction of the forward calorimeter. The charged-particle pseudorapidity distributions are found to vary strongly with centrality, with an increasing asymmetry between the proton-going and Pb-going directions as the collisions become more central. Three different estimations of the number of nucleons participating in the p + Pb collision have been carried out using the Glauber model as well as two Glauber–Gribov inspired extensions to the Glauber model. Charged-particle multiplicities per participant pair are found to vary differently for these three models, highlighting the importance of including colour fluctuations in nucleon–nucleon collisions in the modelling of the initial state of p + Pb collisions. © 2016, The Author(s). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/436f15f0-dde4-4c4a-99ef-8ab34d3ec673
- author
- Aad, G
; Abajyan, T.
; Abbott, B.
; Abdallah, J
; Abdel Khalek, S
; Abdinov, O
; Åkesson, Torsten
LU
; Bocchetta, Simona
LU
; Bryngemark, Lene
LU
and Floderus, Anders
LU
, et al. (More)
- Aad, G
; Abajyan, T.
; Abbott, B.
; Abdallah, J
; Abdel Khalek, S
; Abdinov, O
; Åkesson, Torsten
LU
; Bocchetta, Simona
LU
; Bryngemark, Lene
LU
; Floderus, Anders
LU
; Hawkins, Anthony
LU
; Hedberg, Vincent
LU
; Jarlskog, Göran
LU
; Lytken, Else
LU
; Meirose, Bernhard
LU
; Mjörnmark, Ulf
LU
; Smirnova, Oxana
LU
; Viazlo, Oleksandr
LU
and Wielers, Monika
LU
(Less)
- author collaboration
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 76
- issue
- 4
- publisher
- Springer
- external identifiers
-
- scopus:84964402889
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-016-4002-3
- language
- English
- LU publication?
- yes
- additional info
- Cited By :17 Export Date: 23 May 2018
- id
- 436f15f0-dde4-4c4a-99ef-8ab34d3ec673
- date added to LUP
- 2018-05-23 14:43:43
- date last changed
- 2023-04-08 12:34:00
@article{436f15f0-dde4-4c4a-99ef-8ab34d3ec673,
abstract = {{The centrality dependence of the mean charged-particle multiplicity as a function of pseudorapidity is measured in approximately 1 (Formula presented.) b (Formula presented.) of proton–lead collisions at a nucleon–nucleon centre-of-mass energy of (Formula presented.) (Formula presented.) using the ATLAS detector at the Large Hadron Collider. Charged particles with absolute pseudorapidity less than 2.7 are reconstructed using the ATLAS pixel detector. The p + Pb collision centrality is characterised by the total transverse energy measured in the Pb-going direction of the forward calorimeter. The charged-particle pseudorapidity distributions are found to vary strongly with centrality, with an increasing asymmetry between the proton-going and Pb-going directions as the collisions become more central. Three different estimations of the number of nucleons participating in the p + Pb collision have been carried out using the Glauber model as well as two Glauber–Gribov inspired extensions to the Glauber model. Charged-particle multiplicities per participant pair are found to vary differently for these three models, highlighting the importance of including colour fluctuations in nucleon–nucleon collisions in the modelling of the initial state of p + Pb collisions. © 2016, The Author(s).}},
author = {{Aad, G and Abajyan, T. and Abbott, B. and Abdallah, J and Abdel Khalek, S and Abdinov, O and Åkesson, Torsten and Bocchetta, Simona and Bryngemark, Lene and Floderus, Anders and Hawkins, Anthony and Hedberg, Vincent and Jarlskog, Göran and Lytken, Else and Meirose, Bernhard and Mjörnmark, Ulf and Smirnova, Oxana and Viazlo, Oleksandr and Wielers, Monika}},
issn = {{1434-6044}},
language = {{eng}},
number = {{4}},
publisher = {{Springer}},
series = {{European Physical Journal C}},
title = {{Measurement of the centrality dependence of the charged-particle pseudorapidity distribution in proton–lead collisions at √sNN = 5.02 TeV with the ATLAS detector}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-016-4002-3}},
doi = {{10.1140/epjc/s10052-016-4002-3}},
volume = {{76}},
year = {{2016}},
}