prikaz prve stranice dokumenta Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV
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Scientific paper - Original scientific paper
Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV
Physical Review C, 99 (2019), 2; 024002. https://doi.org/10.1103/physrevc.99.024002
(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; ...; Zou, S. More authors...

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Acharya, S., Antičić, T., Erhardt, F., Gotovac, S., Jerčić, M., Lončar, P. ... Zou, S. (2019). Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV. Physical Review C, 99. (2). doi: 10.1103/physrevc.99.024002

Acharya, S., et al. "Measurement of dielectron 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.99.024002

Acharya, S., Tome Antičić, Filip Erhardt, Sven Gotovac, Marko Jerčić, Petra Lončar, Eugen Mudnić, et al. "Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV." Physical Review C 99, no. 2 (2019). https://doi.org/10.1103/physrevc.99.024002

Acharya, S., et al. (2019) 'Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV', Physical Review C, 99(2). doi: 10.1103/physrevc.99.024002

Acharya S, Antičić T, Erhardt F, Gotovac S, Jerčić M, Lončar P, and sur.. Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV. Physical Review C [Internet]. 2019 [cited 2024 December 29];99(2). doi: 10.1103/physrevc.99.024002

S. Acharya, et al., "Measurement of dielectron 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:217:951460. [Accessed: 29 December 2024]

Metadata
Title (english)Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV
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
...
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 first measurement of dielectron (e+e−) production in central (0–10%) Pb–Pb collisions at sNN=2.76TeV at the LHC is presented. The dielectron invariant-mass spectrum is compared to the expected contributions from hadron decays in the invariant-mass range 0<mee<3.5GeV/c2. The ratio of data and the cocktail of hadronic contributions without vacuum ρ0 is measured in the invariant-mass range mee<0.15, 0.7>GeV/c2, where an excess of dielectrons is observed in other experiments, and its value is 1.40±0.28(stat.)±0.08(syst.) ±0.27(cocktail). The dielectron spectrum measured in the invariant mass range mee<0, 1>GeV/c2 is consistent with the predictions from two theoretical model calculations that include thermal dielectron production from both partonic and hadronic phases with in-medium broadened ρ0 meson. The fraction of direct virtual photons over inclusive virtual photons is extracted for dielectron pairs with invariant mass mee<0.1, 0.3>GeV/c2 and in the transverse-momentum intervals 1<pT, ee<2GeV/c and 2<pT, ee<4GeV/c. The measured fraction of virtual direct photons is consistent with the measurement of real direct photons by ALICE and with the expectations from previous dielectron measurements at RHIC within the experimental uncertainties.
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, 024002
p-ISSN2469-9985
e-ISSN2469-9993
DOIhttps://doi.org/10.1103/physrevc.99.024002
URN:NBNurn:nbn:hr:217:951460
Publication2019
Document URLhttps://journals.aps.org/prc/abstract/10.1103/PhysRevC.99.024002
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 July 2018; published 14 February 2019.
Created on2020-08-21 16:12:00