prikaz prve stranice dokumenta Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV
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Scientific paper - Original scientific paper
Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV
Physics Letters B, 754 (2016); 235-248. https://doi.org/10.1016/j.physletb.2016.01.020
(ALICE Collaboration) Adam, J.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Utrobičić, Antonija; ...; Vicković, Linda; ...; Zyzak, M. More authors...

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Adam, J., Antičić, T., Erhardt, F., Gotovac, S., Mudnić, E., Planinić, M. ... Zyzak, M. (2016). Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV. Physics Letters B, 754., 235-248. doi: 10.1016/j.physletb.2016.01.020

Adam, J., et al. "Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV." Physics Letters B, vol. 754, 2016, pp. 235-248. https://doi.org/10.1016/j.physletb.2016.01.020

Adam, J., Tome Antičić, Filip Erhardt, Sven Gotovac, Eugen Mudnić, Mirko Planinić, Nikola Poljak, et al. "Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV." Physics Letters B 754 (2016): 235-248. https://doi.org/10.1016/j.physletb.2016.01.020

Adam, J., et al. (2016) 'Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV', Physics Letters B, 754, pp. 235-248. doi: 10.1016/j.physletb.2016.01.020

Adam J, Antičić T, Erhardt F, Gotovac S, Mudnić E, Planinić M, and sur.. Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV. Physics Letters B [Internet]. 2016 [cited 2024 December 28];754:235-248. doi: 10.1016/j.physletb.2016.01.020

J. Adam, et al., "Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV", Physics Letters B, vol. 754, pp. 235-248, 2016. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:852204. [Accessed: 28 December 2024]

Metadata
Title (english)Direct photon production in Pb-Pb collisions at √sNN = 2.76 TeV
AuthorJ. Adam
Author
...
AuthorTome Antičić
MBZ: 218816
Author
...
AuthorFilip Erhardt
MBZ: 345132
Author
...
AuthorSven Gotovac
MBZ: 108173
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
...
AuthorM. Zyzak
CollaborationALICE Collaboration
Author's institutionUniversity of Zagreb
Faculty of Science
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
Direct photon production at mid-rapidity in Pb–Pb collisions at √sNN = 2.76 TeV was studied in the transverse momentum range 0.9<pT<14 GeV/c. Photons were detected with the highly segmented electromagnetic calorimeter PHOS and via conversions in the ALICE detector material with the e+e− pair reconstructed in the central tracking system. The results of the two methods were combined and direct photon spectra were measured for the 0–20%, 20–40%, and 40–80% centrality classes. For all three classes, agreement was found with perturbative QCD calculations for pT≳5 GeV/c. Direct photon spectra down to pT≈1 GeV/c could be extracted for the 20–40% and 0–20% centrality classes. The significance of the direct photon signal for 0.9<pT<2.1 GeV/c is 2.6σ for the 0–20% class. The spectrum in this pT range and centrality class can be described by an exponential with an inverse slope parameter of (297±12stat±41syst) MeV. State-of-the-art models for photon production in heavy-ion collisions agree with the data within uncertainties.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysics Letters B
Numberingvol. 754, pp. 235-248
p-ISSN0370-2693
DOIhttps://doi.org/10.1016/j.physletb.2016.01.020
URN:NBNurn:nbn:hr:217:852204
Publication2016
Document URLhttps://www.sciencedirect.com/science/article/pii/S0370269316000320
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2016 CERN for the benefit of the ALICE Collaboration. 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 5 October 2015. Received in revised form 17 December 2015. Accepted 14 January 2016. Available online 19 January 2016.
Created on2020-02-23 11:38:38