prikaz prve stranice dokumenta Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV
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Scientific paper - Original scientific paper
Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV
Physics Letters B, 804 (2020); 135375. https://doi.org/10.1016/j.physletb.2020.135375
(ALICE Collaboration) Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Utrobičić, Antonija; ...; Vicković, Linda; ...; Zurlo, N. More authors...

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Acharya, S., Antičić, T., Erhardt, F., Gotovac, S., Jerčić, M., Lončar, P. ... Zurlo, N. (2020). Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV. Physics Letters B, 804.. doi: 10.1016/j.physletb.2020.135375

Acharya, S., et al. "Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV." Physics Letters B, vol. 804, 2020. https://doi.org/10.1016/j.physletb.2020.135375

Acharya, S., Tome Antičić, Filip Erhardt, Sven Gotovac, Marko Jerčić, Petra Lončar, Eugen Mudnić, et al. "Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV." Physics Letters B 804 (2020). https://doi.org/10.1016/j.physletb.2020.135375

Acharya, S., et al. (2020) 'Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV', Physics Letters B, 804. doi: 10.1016/j.physletb.2020.135375

Acharya S, Antičić T, Erhardt F, Gotovac S, Jerčić M, Lončar P, and sur.. Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV. Physics Letters B [Internet]. 2020 [cited 2024 December 07];804. doi: 10.1016/j.physletb.2020.135375

S. Acharya, et al., "Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV", Physics Letters B, vol. 804, 2020. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:060445. [Accessed: 07 December 2024]

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Metadata
Title (english)Longitudinal and azimuthal evolution of two- particle transverse momentum correlations in Pb– Pb collisions at √sNN = 2.76 TeV
AuthorS. Acharya
Author
...
AuthorTome Antičić
Author
...
AuthorFilip Erhardt
Author
...
AuthorSven Gotovac
Author
...
AuthorMarko Jerčić
Author
...
AuthorPetra Lončar
Author
...
AuthorEugen Mudnić
Author
...
AuthorMirko Planinić
Author
...
AuthorNikola Poljak
Author
...
AuthorGoran Simatović
Author
...
AuthorAntonija Utrobičić
Author
...
AuthorLinda Vicković
Author
...
AuthorN. 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)
This paper presents the first measurements of the charge independent (CI) and charge dependent (CD) two-particle transverse momentum correlators GCI 2 and GCD 2 in Pb–Pb collisions at √sNN =2.76 TeV by the ALICE collaboration. The two-particle transverse momentum correlator G2 was introduced as a measure of the momentum current transfer between neighboring system cells. The correlators are measured as a function of pair separation in pseudorapidity (η) and azimuth (ϕ) and as a function of collision centrality. From peripheral to central collisions, the correlator GCI 2 exhibits a longitudinal broadening while undergoing a monotonic azimuthal narrowing. By contrast, GCD 2 exhibits a narrowing along both dimensions. These features are not reproduced by models such as HIJING and AMPT. However, the observed narrowing of the correlators from peripheral to central collisions is expected to result from the stronger transverse flow profiles produced in more central collisions and the longitudinal broadening is predicted to be sensitive to momentum currents and the shear viscosity per unit of entropy density η/s of the matter produced in the collisions. The observed broadening is found to be consistent with the hypothesized lower bound of η/s and is in qualitative agreement with values obtained from anisotropic flow measurements.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysics Letters B
Numberingvol. 804, 135375
p-ISSN0370-2693
DOIhttps://doi.org/10.1016/j.physletb.2020.135375
URN:NBNurn:nbn:hr:217:060445
Publication2020
Document URLhttps://linkinghub.elsevier.com/retrieve/pii/S0370269320301799
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2020 Conseil Européen pour la Recherche Nucléaire,. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. Received 16 November 2019; received in revised form 21 February 2020; accepted 16 March 2020; available online 20 March 2020; published 10 May 2020.
Created on2020-11-22 15:16:03