prikaz prve stranice dokumenta Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC
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Scientific paper - Original scientific paper
Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC
Physical Review Letters, 131 (2023), 4; 042303. https://doi.org/10.1103/PhysRevLett.131.042303
(ALICE Collaboration) Acharya, Sheryasi; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Karatović, David; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Vicković, Linda; ...; Zurlo, Nicola More authors...

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Acharya, S., Erhardt, F., Gotovac, S., Jerčić, M., Karatović, D., Lončar, P. ... Zurlo, N. (2023). Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC. Physical Review Letters, 131. (4). doi: 10.1103/PhysRevLett.131.042303

Acharya, Sheryasi, et al. "Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC." Physical Review Letters, vol. 131, no. 4, 2023. https://doi.org/10.1103/PhysRevLett.131.042303

Acharya, Sheryasi, Filip Erhardt, Sven Gotovac, Marko Jerčić, David Karatović, Petra Lončar, Eugen Mudnić, et al. "Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC." Physical Review Letters 131, no. 4 (2023). https://doi.org/10.1103/PhysRevLett.131.042303

Acharya, S., et al. (2023) 'Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC', Physical Review Letters, 131(4). doi: 10.1103/PhysRevLett.131.042303

Acharya S, Erhardt F, Gotovac S, Jerčić M, Karatović D, Lončar P, and sur.. Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC. Physical Review Letters [Internet]. 2023 [cited 2024 November 14];131(4). doi: 10.1103/PhysRevLett.131.042303

S. Acharya, et al., "Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC", Physical Review Letters, vol. 131, no. 4, 2023. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:949691. [Accessed: 14 November 2024]

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Metadata
Title (english)Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC
AuthorSheryasi Acharya
Author
...
AuthorFilip Erhardt
Author
...
AuthorSven Gotovac
Author
...
AuthorMarko Jerčić
Author
...
AuthorDavid Karatović
Author
...
AuthorPetra Lončar
Author
...
AuthorEugen Mudnić
Author
...
AuthorMirko Planinić
Author
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AuthorNikola Poljak
Author
...
AuthorLinda Vicković
Author
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AuthorNicola Zurlo
CollaborationALICE Collaboration
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We study the polarization of inclusive J/ψ produced in Pb-Pb collisions at √sNN = 5.02 TeV at the LHC in the dimuon channel, via the measurement of the angular distribution of its decay products. We perform the study in the rapidity region 2.5 <y< 4, for three transverse momentum intervals (2 < pT < 4, 4 < pT < 6, 6 < pT < 10 GeV/c) and as a function of the centrality of the collision for 2 < pT < 6 GeV/c. For the first time, the polarization is measured with respect to the event plane of the collision, by considering the angle between the positive-charge decay muon in the J/ψ rest frame and the axis perpendicular to the event-plane vector in the laboratory system. A small transverse polarization is measured, with a significance reaching 3.9σ at low pT and for intermediate centrality values. The polarization could be connected with the behavior of the quark-gluon plasma, formed in Pb-Pb collisions, as a rotating fluid with large vorticity, as well as with the existence of a strong magnetic field in the early stage of its formation.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review Letters
Numberingvol. 131, no. 4, 042303
p-ISSN0031-9007
e-ISSN1079-7114
DOIhttps://doi.org/10.1103/PhysRevLett.131.042303
URN:NBNurn:nbn:hr:217:949691
Publication2023
Document URLhttps://link.aps.org/doi/10.1103/PhysRevLett.131.042303
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2023 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Received 20 May 2022; revised 9 February 2023; accepted 28 March 2023; published 25 July 2023.
Created on2024-07-15 20:28:25