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Measurement of the production of charm jets tagged with D0 mesons in pp collisions at √s=7 TeV

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dc.contributor.authorAcharya, S.
dc.contributor.authorAdamova, D.
dc.contributor.authorAdhya, S. P.
dc.contributor.authorAdler, A.
dc.contributor.authorBelyaev, V.
dc.contributor.authorBogdanov, A.
dc.contributor.authorBolozdynya, A.
dc.contributor.authorBorissov, A.
dc.contributor.authorGrigoriev, V.
dc.contributor.authorKaplin, V.
dc.contributor.authorKondratyeva, N.
dc.contributor.authorLoginov, V.
dc.contributor.authorMelikyan, Y.
dc.contributor.authorSamsonov, V.
dc.contributor.authorSelyuzhenkov, I.
dc.contributor.authorБеляев, Владимир Никитич
dc.contributor.authorБогданов, Алексей Александрович
dc.contributor.authorБолоздыня, Александр Иванович
dc.contributor.authorГригорьев, Владислав Анатольевич
dc.contributor.authorКондратьева, Наталья Викторовна
dc.contributor.authorЛогинов, Виталий Александрович
dc.date.accessioned2024-11-21T11:45:57Z
dc.date.available2024-11-21T11:45:57Z
dc.date.issued2019
dc.description.abstract© 2019, The Author(s).The production of charm jets in proton-proton collisions at a center-of-mass energy of s=7 TeV was measured with the ALICE detector at the CERN Large Hadron Collider. The measurement is based on a data sample corresponding to a total integrated luminosity of 6.23 nb−1, collected using a minimum-bias trigger. Charm jets are identified by the presence of a D0 meson among their constituents. The D0 mesons are reconstructed from their hadronic decay D0 →K−π+. The D0-meson tagged jets are reconstructed using tracks of charged particles (track-based jets) with the anti-kT algorithm in the jet transverse momentum range 5<pT,jetch< 30 GeV/c and pseudorapidity |ηjet| < 0.5. The fraction of charged jets containing a D0-meson increases with pT,jetch from 0.042 ± 0.004 (stat) ± 0.006 (syst) to 0.080 ± 0.009 (stat) ± 0.008 (syst). The distribution of D0-meson tagged jets as a function of the jet momentum fraction carried by the D0 meson in the direction of the jet axis (z∥ch) is reported for two ranges of jet transverse momenta, 5<pT,jetch< 15 GeV/c and 15<pT,jetch< 30 GeV/c in the intervals 0.2<z‖ch<1.0 and 0.4<z‖ch<1.0, respectively. The data are compared with results from Monte Carlo event generators (PYTHIA 6, PYTHIA 8 and Herwig 7) and with a Next-to-Leading-Order perturbative Quantum Chromodynamics calculation, obtained with the POWHEG method and interfaced with PYTHIA 6 for the generation of the parton shower, fragmentation, hadronisation and underlying event. [Figure not available: see fulltext.]
dc.identifier.citationMeasurement of the production of charm jets tagged with D0 mesons in pp collisions at √s=7 TeV / Acharya, S. [et al.] // Journal of High Energy Physics. - 2019. - 2019. - № 8. - 10.1007/JHEP08(2019)133
dc.identifier.doi10.1007/JHEP08(2019)133
dc.identifier.urihttps://www.doi.org/10.1007/JHEP08(2019)133
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85071973004&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000484895500001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/18661
dc.relation.ispartofJournal of High Energy Physics
dc.titleMeasurement of the production of charm jets tagged with D0 mesons in pp collisions at √s=7 TeV
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue8
oaire.citation.volume2019
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