ϒ suppression at forward rapidity in Pb–Pb collisions at sNN=5.02TeV
Acharya, S ; Adolfsson, Jonatan LU ; Christiansen, Peter LU ; Ljunggren, Martin LU ; Nassirpour, Adrian LU
; Oskarsson, Anders
LU
; Richert, Tuva
LU
; Silvermyr, David
LU
; Stenlund, Evert
LU
and Vislavicius, Vytautas
LU
, et al.
(2019)
In Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
790.
p.89-101
- Abstract
- Inclusive ϒ(1S) and ϒ(2S) production have been measured in Pb–Pb collisions at the centre-of-mass energy per nucleon–nucleon pair sNN=5.02 TeV, using the ALICE detector at the CERN LHC. The ϒ mesons are reconstructed in the centre-of-mass rapidity interval 2.5<y<4 and in the transverse-momentum range pT<15 GeV/c, via their decays to muon pairs. In this Letter, we present results on the inclusive ϒ(1S) nuclear modification factor RAA as a function of collision centrality, transverse momentum and rapidity. The ϒ(1S) and ϒ(2S) RAA, integrated over the centrality range 0–90%, are 0.37±0.02(stat)±0.03(syst) and 0.10±0.04(stat)±0.02(syst), respectively, leading to a ratio RAA ϒ(2S)/RAA ϒ(1S) of 0.28±0.12(stat)±0.06(syst). The observed... (More)
- Inclusive ϒ(1S) and ϒ(2S) production have been measured in Pb–Pb collisions at the centre-of-mass energy per nucleon–nucleon pair sNN=5.02 TeV, using the ALICE detector at the CERN LHC. The ϒ mesons are reconstructed in the centre-of-mass rapidity interval 2.5<y<4 and in the transverse-momentum range pT<15 GeV/c, via their decays to muon pairs. In this Letter, we present results on the inclusive ϒ(1S) nuclear modification factor RAA as a function of collision centrality, transverse momentum and rapidity. The ϒ(1S) and ϒ(2S) RAA, integrated over the centrality range 0–90%, are 0.37±0.02(stat)±0.03(syst) and 0.10±0.04(stat)±0.02(syst), respectively, leading to a ratio RAA ϒ(2S)/RAA ϒ(1S) of 0.28±0.12(stat)±0.06(syst). The observed ϒ(1S) suppression increases with the centrality of the collision and no significant variation is observed as a function of transverse momentum and rapidity. © 2018 (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/6fda9b65-259f-4aa3-84f9-031f25a2372f
- author
- Acharya, S
; Adolfsson, Jonatan
LU
; Christiansen, Peter
LU
; Ljunggren, Martin
LU
; Nassirpour, Adrian
LU
; Oskarsson, Anders
LU
; Richert, Tuva
LU
; Silvermyr, David
LU
; Stenlund, Evert
LU
and Vislavicius, Vytautas
LU
, et al. (More)
- Acharya, S
; Adolfsson, Jonatan
LU
; Christiansen, Peter
LU
; Ljunggren, Martin
LU
; Nassirpour, Adrian
LU
; Oskarsson, Anders
LU
; Richert, Tuva
LU
; Silvermyr, David
LU
; Stenlund, Evert
LU
; Vislavicius, Vytautas
LU
and Zou, S.
(Less)
- author collaboration
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- volume
- 790
- pages
- 13 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85060196749
- ISSN
- 0370-2693
- DOI
- 10.1016/j.physletb.2018.11.067
- language
- English
- LU publication?
- yes
- additional info
- Export Date: 28 January 2019
- id
- 6fda9b65-259f-4aa3-84f9-031f25a2372f
- date added to LUP
- 2019-01-28 12:04:44
- date last changed
- 2023-04-09 02:01:57
@article{6fda9b65-259f-4aa3-84f9-031f25a2372f,
abstract = {{Inclusive ϒ(1S) and ϒ(2S) production have been measured in Pb–Pb collisions at the centre-of-mass energy per nucleon–nucleon pair sNN=5.02 TeV, using the ALICE detector at the CERN LHC. The ϒ mesons are reconstructed in the centre-of-mass rapidity interval 2.5<y<4 and in the transverse-momentum range pT<15 GeV/c, via their decays to muon pairs. In this Letter, we present results on the inclusive ϒ(1S) nuclear modification factor RAA as a function of collision centrality, transverse momentum and rapidity. The ϒ(1S) and ϒ(2S) RAA, integrated over the centrality range 0–90%, are 0.37±0.02(stat)±0.03(syst) and 0.10±0.04(stat)±0.02(syst), respectively, leading to a ratio RAA ϒ(2S)/RAA ϒ(1S) of 0.28±0.12(stat)±0.06(syst). The observed ϒ(1S) suppression increases with the centrality of the collision and no significant variation is observed as a function of transverse momentum and rapidity. © 2018}},
author = {{Acharya, S and Adolfsson, Jonatan and Christiansen, Peter and Ljunggren, Martin and Nassirpour, Adrian and Oskarsson, Anders and Richert, Tuva and Silvermyr, David and Stenlund, Evert and Vislavicius, Vytautas and Zou, S.}},
issn = {{0370-2693}},
language = {{eng}},
pages = {{89--101}},
publisher = {{Elsevier}},
series = {{Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}},
title = {{ϒ suppression at forward rapidity in Pb–Pb collisions at sNN=5.02TeV}},
url = {{http://dx.doi.org/10.1016/j.physletb.2018.11.067}},
doi = {{10.1016/j.physletb.2018.11.067}},
volume = {{790}},
year = {{2019}},
}