prikaz prve stranice dokumenta Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV
  Download
PDF 1.05 MB
Scientific paper - Original scientific paper
Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV
Physical Review C - Nuclear Physics, 93 (2016), 2; 24905. https://doi.org/10.1103/PhysRevC.93.024905
(ALICE Collaboration) Adam, J.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Utrobičić, Antonija; ...; Zyzak, M. More authors...

Institutional repository: Repository of the Faculty of Science

Cite this document

Adam, J., Antičić, T., Erhardt, F., Planinić, M., Poljak, N., Simatović, G. ... Zyzak, M. (2016). Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV. Physical Review C - Nuclear Physics, 93. (2). doi: 10.1103/PhysRevC.93.024905

Adam, J., et al. "Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV." Physical Review C - Nuclear Physics, vol. 93, no. 2, 2016. https://doi.org/10.1103/PhysRevC.93.024905

Adam, J., Tome Antičić, Filip Erhardt, Mirko Planinić, Nikola Poljak, Goran Simatović, Antonija Utrobičić and M. Zyzak. "Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV." Physical Review C - Nuclear Physics 93, no. 2 (2016). https://doi.org/10.1103/PhysRevC.93.024905

Adam, J., et al. (2016) 'Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV', Physical Review C - Nuclear Physics, 93(2). doi: 10.1103/PhysRevC.93.024905

Adam J, Antičić T, Erhardt F, Planinić M, Poljak N, Simatović G, and sur.. Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV. Physical Review C - Nuclear Physics [Internet]. 2016 February 04 [cited 2024 November 05];93(2). doi: 10.1103/PhysRevC.93.024905

J. Adam, et al., "Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV", Physical Review C - Nuclear Physics, vol. 93, no. 2, February 2016. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:855900. [Accessed: 05 November 2024]

Metadata
Title (english)Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN = 2.76 TeV
AuthorJ. Adam
Author
...
AuthorTome Antičić
Author
...
AuthorFilip Erhardt
Author
...
AuthorMirko Planinić
Author
...
AuthorNikola Poljak
Author
...
AuthorGoran Simatović
Author
...
AuthorAntonija Utrobičić
Author
...
AuthorM. Zyzak
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 report on the measurement of freeze-out radii for pairs of identical-charge pions measured in Pb-Pb collisions at √sNN = 2.76 TeV as a function of collision centrality and the average transverse momentum of the pair kT. Three-dimensional sizes of the system (femtoscopic radii), as well as direction-averaged onedimensional radii are extracted. The radii decrease with kT, following a power-law behavior. This is qualitatively consistent with expectations from a collectively expanding system, produced in hydrodynamic calculations. The radii also scale linearly with 〈dNch/dη〉1/3. This behavior is compared to world data on femtoscopic radii in heavy-ion collisions. While the dependence is qualitatively similar to results at smaller √sNN, a decrease in the ratio Rout/Rside is seen, which is in qualitative agreement with a specific prediction from hydrodynamic models: a change from inside-out to outside-in freeze-out configuration. The results provide further evidence for the production of a collective, strongly coupled system in heavy-ion collisions at the CERN Large Hadron Collider.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review C - Nuclear Physics
Numberingvol. 93, no. 2, 24905
p-ISSN0556-2813
e-ISSN1089-490X
DOIhttps://doi.org/10.1103/PhysRevC.93.024905
URN:NBNurn:nbn:hr:217:855900
Publication2016-02-04
Document URLhttps://link.aps.org/doi/10.1103/PhysRevC.93.024905
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2016) by the American Physical Society. Received 29 July 2015.; published 4 February 2016.
Created on2018-04-05 11:43:50