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Scientific paper - Original scientific paper
Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions
Physical Review Letters, 125 (2020), 1; 012301. https://doi.org/10.1103/PhysRevLett.125.012301
(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). Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions. Physical Review Letters, 125. (1). doi: 10.1103/PhysRevLett.125.012301

Acharya, S., et al. "Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions." Physical Review Letters, vol. 125, no. 1, 2020. https://doi.org/10.1103/PhysRevLett.125.012301

Acharya, S., Tome Antičić, Filip Erhardt, Sven Gotovac, Marko Jerčić, Petra Lončar, Eugen Mudnić, et al. "Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions." Physical Review Letters 125, no. 1 (2020). https://doi.org/10.1103/PhysRevLett.125.012301

Acharya, S., et al. (2020) 'Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions', Physical Review Letters, 125(1). doi: 10.1103/PhysRevLett.125.012301

Acharya S, Antičić T, Erhardt F, Gotovac S, Jerčić M, Lončar P, and sur.. Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions. Physical Review Letters [Internet]. 2020 [cited 2024 November 16];125(1). doi: 10.1103/PhysRevLett.125.012301

S. Acharya, et al., "Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions", Physical Review Letters, vol. 125, no. 1, 2020. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:620064. [Accessed: 16 November 2024]

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Metadata
Title (english)Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions
AuthorS. Acharya
Author
...
AuthorTome Antičić
Author
...
AuthorFilip Erhardt
Author
...
AuthorSven Gotovac
Author
...
AuthorMarko Jerčić
Author
...
AuthorPetra Lončar
Author
...
AuthorEugen Mudnić
Author
...
AuthorMirko Planinić
Author
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AuthorNikola Poljak
Author
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AuthorGoran Simatović
Author
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AuthorAntonija Utrobičić
Author
...
AuthorLinda Vicković
Author
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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)
The first evidence of spin alignment of vector mesons (K0 and ϕ) in heavy-ion collisions at the Large Hadron Collider (LHC) is reported. The spin density matrix element ρ00 is measured at midrapidity (|y| < 0.5) in Pb-Pb collisions at a center-of-mass energy (√sNN) of 2.76 TeV with the ALICE detector. ρ00 values are found to be less than 1=3 (1=3 implies no spin alignment) at low transverse momentum (pT < 2 GeV/c) for K0 and ϕ at a level of 3σ and 2σ, respectively. No significant spin alignment is observed for the K^0_S meson (spin = 0) in Pb-Pb collisions and for the vector mesons in pp collisions. The measured spin alignment is unexpectedly large but qualitatively consistent with the expectation from models which attribute it to a polarization of quarks in the presence of angular momentum in heavy-ion collisions and a subsequent hadronization by the process of recombination.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review Letters
Numberingvol. 125, no. 1, 012301
p-ISSN0031-9007
e-ISSN1079-7114
DOIhttps://doi.org/10.1103/PhysRevLett.125.012301
URN:NBNurn:nbn:hr:217:620064
Publication2020
Document URLhttps://link.aps.org/doi/10.1103/PhysRevLett.125.012301
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2020 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 21 November 2019; revised 25 February 2020; accepted 27 May 2020; published 30 June 2020.
Created on2020-10-10 19:48:03