prikaz prve stranice dokumenta Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV
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Scientific paper - Original scientific paper
Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV
Physics Letters B, 788 (2019); 505-518. https://doi.org/10.1016/j.physletb.2018.11.009
(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). Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV. Physics Letters B, 788., 505-518. doi: 10.1016/j.physletb.2018.11.009

Acharya, S., et al. "Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV." Physics Letters B, vol. 788, 2019, pp. 505-518. https://doi.org/10.1016/j.physletb.2018.11.009

Acharya, S., Tome Antičić, Filip Erhardt, Sven Gotovac, Marko Jerčić, Petra Lončar, Eugen Mudnić, et al. "Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV." Physics Letters B 788 (2019): 505-518. https://doi.org/10.1016/j.physletb.2018.11.009

Acharya, S., et al. (2019) 'Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV', Physics Letters B, 788, pp. 505-518. doi: 10.1016/j.physletb.2018.11.009

Acharya S, Antičić T, Erhardt F, Gotovac S, Jerčić M, Lončar P, and sur.. Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV. Physics Letters B [Internet]. 2019 [cited 2024 December 10];788:505-518. doi: 10.1016/j.physletb.2018.11.009

S. Acharya, et al., "Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV", Physics Letters B, vol. 788, pp. 505-518, 2019. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:784951. [Accessed: 10 December 2024]

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Metadata
Title (english)Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √sNN= 13TeV
Title (english)Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at s=13TeV
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 measurement of dielectron production is presented as a function of invariant mass and transverse momentum (pT) at midrapidity (|ye| <0.8) in proton–proton (pp) collisions at a centre-of-mass energy of √s=13 TeV. The contributions from light-hadron decays are calculated from their measured cross sections in pp collisions at √s=7 TeV or 13 TeV. The remaining continuum stems from correlated semileptonic decays of heavy-flavour hadrons. Fitting the data with templates from two different MC event generators, PYTHIA and POWHEG, the charm and beauty cross sections at midrapidity are extracted for the first time at this collision energy: dσcc¯/dy|y=0=974±138(stat.)±140(syst.) ±214(BR)μb and dσbb¯/dy|y=0=79±14(stat.) ±11(syst.)±5(BR)μb using PYTHIA simulations and dσcc¯/dy|y=0=1417±184(stat.)±204(syst.) ±312(BR)μb and dσbb¯/dy|y=0=48±14(stat.) ±7(syst.)±3(BR)μb for POWHEG. These values, whose uncertainties are fully correlated between the two generators, are consistent with extrapolations from lower energies. The different results obtained with POWHEG and PYTHIA imply different kinematic correlations of the heavy-quark pairs in these two generators. Furthermore, comparisons of dielectron spectra in inelastic events and in events collected with a trigger on high charged-particle multiplicities are presented in various pT intervals. The differences are consistent with the already measured scaling of light-hadron and open-charm production at high charged-particle multiplicity as a function of pT . Upper limits for the contribution of virtual direct photons are extracted at 90% confidence level and found to be in agreement with pQCD calculations.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysics Letters B
Numberingvol. 788, pp. 505-518
p-ISSN0370-2693
DOIhttps://doi.org/10.1016/j.physletb.2018.11.009
URN:NBNurn:nbn:hr:217:784951
Publication2019
Document URLhttps://www.sciencedirect.com/science/article/pii/S0370269318308475
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2018 The Author. 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 23 May 2018. Received in revised form 8 October 2018. Accepted 6 November 2018. Available online 9 November 2018.
Created on2020-08-24 17:43:26