prikaz prve stranice dokumenta Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV
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Scientific paper - Original scientific paper
Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV
Physical Review C, 99 (2019), 2; 024905. https://doi.org/10.1103/physrevc.99.024905
(ALICE Collaboration) Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Jerčić, Marko; ...; Lončar, Petra; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Utrobičić, Antonija; ...; Zou, S. More authors...

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Acharya, S., Antičić, T., Erhardt, F., Jerčić, M., Lončar, P., Planinić, M. ... Zou, S. (2019). Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV. Physical Review C, 99. (2). doi: 10.1103/physrevc.99.024905

Acharya, S., et al. "Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV." Physical Review C, vol. 99, no. 2, 2019. https://doi.org/10.1103/physrevc.99.024905

Acharya, S., Tome Antičić, Filip Erhardt, Marko Jerčić, Petra Lončar, Mirko Planinić, Nikola Poljak, Goran Simatović, Antonija Utrobičić and S. Zou. "Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV." Physical Review C 99, no. 2 (2019). https://doi.org/10.1103/physrevc.99.024905

Acharya, S., et al. (2019) 'Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV', Physical Review C, 99(2). doi: 10.1103/physrevc.99.024905

Acharya S, Antičić T, Erhardt F, Jerčić M, Lončar P, Planinić M, and sur.. Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV. Physical Review C [Internet]. 2019 [cited 2024 December 08];99(2). doi: 10.1103/physrevc.99.024905

S. Acharya, et al., "Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV", Physical Review C, vol. 99, no. 2, 2019. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:436659. [Accessed: 08 December 2024]

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Metadata
Title (english)Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √sNN = 2.76 TeV
AuthorS. Acharya
Author
...
AuthorTome Antičić
MBZ: 218816
Author
...
AuthorFilip Erhardt
MBZ: 345132
Author
...
AuthorMarko Jerčić
MBZ: 358125
Author
...
AuthorPetra Lončar
MBZ: 350591
Author
...
AuthorMirko Planinić
MBZ: 213776
Author
...
AuthorNikola Poljak
MBZ: 283732
Author
...
AuthorGoran Simatović
MBZ: 329845
Author
...
AuthorAntonija Utrobičić
MBZ: 342963
Author
...
AuthorS. Zou
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 production yield of the Λ(1520) baryon resonance is measured at midrapidity in Pb-Pb collisions at sNN = 2.76 TeV with the ALICE detector at the Large Hadron Collider (LHC). The measurement is performed in the Λ(1520)→pK− (and charge conjugate) hadronic decay channel as a function of the transverse momentum (pT) and collision centrality. The ratio of the pT- integrated production of Λ(1520) baryons relative to Λ baryons in central collisions is suppressed by about a factor of 2 with respect to peripheral collisions. This is the first observation of the suppression of a baryonic resonance at the LHC and the first 3σ evidence of Λ(1520) suppression within a single collision system. The measured Λ(1520)/Λ ratio in central collisions is smaller than the value predicted by the statistical hadronization model calculations. The shape of the measured pT distribution and the centrality dependence of the suppression are reproduced by the EPOS3 Monte Carlo event generator. The measurement adds further support to the formation of a dense hadronic phase in the final stages of the evolution of the fireball created in heavy-ion collisions, lasting long enough to cause a significant reduction in the observable yield of short-lived resonances.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review C
Numberingvol. 99, no. 2, 024905
p-ISSN2469-9985
e-ISSN2469-9993
DOIhttps://doi.org/10.1103/physrevc.99.024905
URN:NBNurn:nbn:hr:217:436659
Publication2019
Document URLhttps://link.aps.org/doi/10.1103/PhysRevC.99.024905
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2019 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 31 May 2018. Revised 19 September 2018. Published 8 February 2019.
Created on2020-08-24 11:28:21