prikaz prve stranice dokumenta Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons
  Download
PDF 909.13 KB
Scientific paper - Original scientific paper
Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons
Physics Letters B, 802 (2020); 135225. https://doi.org/10.1016/j.physletb.2020.135225
(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...

Institutional repository: Repository of the Faculty of Science

Cite this document

Acharya, S., Antičić, T., Erhardt, F., Gotovac, S., Jerčić, M., Lončar, P. ... Zurlo, N. (2020). Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons. Physics Letters B, 802.. doi: 10.1016/j.physletb.2020.135225

Acharya, S., et al. "Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons." Physics Letters B, vol. 802, 2020. https://doi.org/10.1016/j.physletb.2020.135225

Acharya, S., Tome Antičić, Filip Erhardt, Sven Gotovac, Marko Jerčić, Petra Lončar, Eugen Mudnić, et al. "Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons." Physics Letters B 802 (2020). https://doi.org/10.1016/j.physletb.2020.135225

Acharya, S., et al. (2020) 'Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons', Physics Letters B, 802. doi: 10.1016/j.physletb.2020.135225

Acharya S, Antičić T, Erhardt F, Gotovac S, Jerčić M, Lončar P, and sur.. Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons. Physics Letters B [Internet]. 2020 [cited 2024 June 26];802. doi: 10.1016/j.physletb.2020.135225

S. Acharya, et al., "Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons", Physics Letters B, vol. 802, 2020. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:146668. [Accessed: 26 June 2024]

Metadata
Title (english)Evidence of rescattering effect in Pb–Pb collisions at the LHC through production of K*(892)^0 and ϕ(1020) mesons
AuthorS. Acharya
Author
...
AuthorTome Antičić
MBZ: 218816
Author
...
AuthorFilip Erhardt
MBZ: 345132
Author
...
AuthorSven Gotovac
MBZ: 108173
Author
...
AuthorMarko Jerčić
MBZ: 358125
Author
...
AuthorPetra Lončar
MBZ: 350591
Author
...
AuthorEugen Mudnić
MBZ: 248856
Author
...
AuthorMirko Planinić
MBZ: 213776
Author
...
AuthorNikola Poljak
MBZ: 283732
Author
...
AuthorGoran Simatović
MBZ: 329845
Author
...
AuthorAntonija Utrobičić
MBZ: 342963
Author
...
AuthorLinda Vicković
MBZ: 242565
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)
Measurements of K*(892)^0 and φ(1020)resonance production in Pb–Pb and pp collisions at √sNN=5.02 TeV with the ALICE detector at the Large Hadron Collider are reported. The resonances are measured at midrapidity (|y|<0.5) via their hadronic decay channels and the transverse momentum (pT) distributions are obtained for various collision centrality classes up to pT=20 GeV/c. The pT-integrated yield ratio K*(892)^0/K in Pb–Pb collisions shows significant suppression relative to pp collisions and decreases towards more central collisions. In contrast, the φ(1020)/K ratio does not show any suppression. Furthermore, the measured K*(892)^0/K ratio in central Pb–Pb collisions is significantly suppressed with respect to the expectations based on a thermal model calculation, while the φ(1020)/K ratio agrees with the model prediction. These measurements are an experimental demonstration of rescattering of K*(892)^0 decay products in the hadronic phase of the collisions. The K*(892)^0/K yield ratios in Pb–Pb and pp collisions are used to estimate the time duration between chemical and kinetic freeze-out, which is found to be ∼4–7 fm/cfor central collisions. The pT-differential ratios of K*(892)^0/K, φ(1020)/K, K*(892)^0/π, φ(1020)/π, p/K*(892)^0and p/φ(1020)are also presented for Pb–Pb and pp collisions at √sNN=5.02 TeV. These ratios show that the rescattering effect is predominantly a low-pT phenomenon.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysics Letters B
Numberingvol. 802, 135225
p-ISSN0370-2693
DOIhttps://doi.org/10.1016/j.physletb.2020.135225
URN:NBNurn:nbn:hr:217:146668
Publication2020
Document URLhttps://www.sciencedirect.com/science/article/pii/S0370269320300290
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2020 The Author(s). 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 21 November 2019; received in revised form 10 January 2020; accepted 13 January 2020; available online 16 January 2020.
Created on2020-10-13 15:15:02