ϒ production and nuclear modification at forward rapidity in Pb–Pb collisions at sNN=5.02TeV
(2021) In Physics Letters B 822.- Abstract
- The production of ϒ mesons in Pb–Pb collisions at a centre-of-mass energy per nucleon pair sNN=5.02 TeV is measured with the muon spectrometer of the ALICE detector at the LHC. The yields as well as the nuclear modification factors are determined in the forward rapidity region 2.5<y<4.0, as a function of rapidity, transverse momentum and collision centrality. The results show that the production of the ϒ(1S) meson is suppressed by a factor of about three with respect to the production in proton–proton collisions. For the first time, a significant signal for the ϒ(2S) meson is observed at forward rapidity, indicating a suppression stronger by about a factor 2–3 with respect to the ground state. The measurements are compared with... (More)
- The production of ϒ mesons in Pb–Pb collisions at a centre-of-mass energy per nucleon pair sNN=5.02 TeV is measured with the muon spectrometer of the ALICE detector at the LHC. The yields as well as the nuclear modification factors are determined in the forward rapidity region 2.5<y<4.0, as a function of rapidity, transverse momentum and collision centrality. The results show that the production of the ϒ(1S) meson is suppressed by a factor of about three with respect to the production in proton–proton collisions. For the first time, a significant signal for the ϒ(2S) meson is observed at forward rapidity, indicating a suppression stronger by about a factor 2–3 with respect to the ground state. The measurements are compared with transport, hydrodynamic, comover and statistical hadronisation model calculations. © 2021 European Organization for Nuclear Research, ALICE (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/eb0393b9-5402-40ca-ad6c-e24727c4787c
- author
- author collaboration
- organization
- publishing date
- 2021-11-10
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics Letters B
- volume
- 822
- article number
- 136579
- publisher
- Elsevier
- external identifiers
-
- scopus:85116414182
- ISSN
- 0370-2693
- DOI
- 10.1016/j.physletb.2021.136579
- language
- English
- LU publication?
- yes
- id
- eb0393b9-5402-40ca-ad6c-e24727c4787c
- date added to LUP
- 2021-10-28 16:08:21
- date last changed
- 2023-04-02 18:45:19
@article{eb0393b9-5402-40ca-ad6c-e24727c4787c, abstract = {{The production of ϒ mesons in Pb–Pb collisions at a centre-of-mass energy per nucleon pair sNN=5.02 TeV is measured with the muon spectrometer of the ALICE detector at the LHC. The yields as well as the nuclear modification factors are determined in the forward rapidity region 2.5<y<4.0, as a function of rapidity, transverse momentum and collision centrality. The results show that the production of the ϒ(1S) meson is suppressed by a factor of about three with respect to the production in proton–proton collisions. For the first time, a significant signal for the ϒ(2S) meson is observed at forward rapidity, indicating a suppression stronger by about a factor 2–3 with respect to the ground state. The measurements are compared with transport, hydrodynamic, comover and statistical hadronisation model calculations. © 2021 European Organization for Nuclear Research, ALICE}}, author = {{Acharya, S and Adolfsson, Jonatan and Basu, Sumit and Christiansen, Peter and Matonoha, Oliver and Nassirpour, Adrian and Ohlson, Alice and Oskarsson, Anders and Richert, Tuva and Vazquez Rueda, Omar and Silvermyr, David and Zurlo, N}}, issn = {{0370-2693}}, language = {{eng}}, month = {{11}}, publisher = {{Elsevier}}, series = {{Physics Letters B}}, title = {{ϒ production and nuclear modification at forward rapidity in Pb–Pb collisions at sNN=5.02TeV}}, url = {{http://dx.doi.org/10.1016/j.physletb.2021.136579}}, doi = {{10.1016/j.physletb.2021.136579}}, volume = {{822}}, year = {{2021}}, }