dc.contributor.author | Adam, Jaroslav | |
dc.contributor.author | Adamová, Dagmar | |
dc.contributor.author | Aggarwal, Madan M. | |
dc.contributor.author | Aglieri Rinella, Gianluca | |
dc.contributor.author | Agnello, Michelangelo | |
dc.contributor.author | Agrawal, Nikita | |
dc.contributor.author | Ahammed, Zubayer | |
dc.contributor.author | Ahmed, Ijaz | |
dc.contributor.author | Ahn, Sang Un | |
dc.contributor.author | Aimo, Ilaria | |
dc.contributor.author | Alme, Johan | |
dc.contributor.author | Helstrup, Håvard | |
dc.contributor.author | Hetland, Kristin Fanebust | |
dc.contributor.author | Kileng, Bjarte | |
dc.contributor.author | Altinpinar, Sedat | |
dc.contributor.author | Djuvsland, Øystein | |
dc.contributor.author | Haaland, Øystein Senneset | |
dc.contributor.author | Huang, Meidana | |
dc.contributor.author | Lønne, Per-Ivar | |
dc.contributor.author | Nystrand, Joakim | |
dc.contributor.author | Rehman, Attiq ur | |
dc.contributor.author | Røhrich, Dieter | |
dc.contributor.author | Ullaland, Kjetil | |
dc.contributor.author | Velure, Arild | |
dc.contributor.author | Wagner, Boris | |
dc.contributor.author | Zhang, Haitao | |
dc.contributor.author | Zhou, Zhuo | |
dc.contributor.author | Zhu, Hongsheng | |
dc.contributor.author | Arsene, Ionut Christian | |
dc.contributor.author | Bätzing, Paul Christoph | |
dc.contributor.author | Dordic, Olja | |
dc.contributor.author | Lindal, Svein | |
dc.contributor.author | Mahmood, Sohail Musa | |
dc.contributor.author | Milosevic, Jovan | |
dc.contributor.author | Qvigstad, Henrik | |
dc.contributor.author | Richter, Matthias | |
dc.contributor.author | Røed, Ketil | |
dc.contributor.author | Skaali, Toralf Bernhard | |
dc.contributor.author | Tveter, Trine Spedstad | |
dc.contributor.author | Wikne, Jon Christopher | |
dc.contributor.author | Zhao, Chengxin | |
dc.contributor.author | Langøy, Rune | |
dc.contributor.author | Lien, Jørgen | |
dc.contributor.author | Aiola, Salvatore | |
dc.contributor.author | Ajaz, Muhammad | |
dc.contributor.author | Akindinov, Alexander | |
dc.contributor.author | Alam, Sk Noor | |
dc.contributor.author | Aleksandrov, Dimitry | |
dc.contributor.author | Alessandro, Bruno | |
dc.contributor.author | ALICE, Collaboration | |
dc.date.accessioned | 2018-03-07T09:26:07Z | |
dc.date.available | 2018-03-07T09:26:07Z | |
dc.date.created | 2015-11-20T10:45:02Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Journal of High Energy Physics, 2015(9), 148 | nb_NO |
dc.identifier.issn | 1029-8479 | |
dc.identifier.uri | http://hdl.handle.net/11250/2489065 | |
dc.description.abstract | Prompt D meson and non-prompt J/ yields are studied as a function of the multiplicity of charged particles produced in inelastic proton-proton collisions at a centreof-mass energy of p s = 7TeV. The results are reported as a ratio between yields in a given multiplicity interval normalised to the multiplicity-integrated ones (relative yields). They are shown as a function of the multiplicity of charged particles normalised to the average value for inelastic collisions (relative charged-particle multiplicity). D0, D+ and D + mesons are measured in five pT intervals from 1 GeV/c to 20 GeV/c and for |y| < 0.5 via their hadronic decays. The D-meson relative yield is found to increase with increasing charged-particle multiplicity. For events with multiplicity six times higher than the average multiplicity of inelastic collisions, a yield enhancement of a factor about 15 relative to the multiplicity-integrated yield in inelastic collisions is observed. The yield enhancement is independent of transverse momentum within the uncertainties of the measurement. The D0-meson relative yield is also measured as a function of the relative multiplicity at forward pseudo-rapidity. The non-prompt J/ , i.e. the B hadron, contribution to the inclusive J/production is measured in the di-electron decay channel at central rapidity. It is evaluated for pT > 1.3 GeV/c and |y| < 0.9, and extrapolated to pT > 0. The fraction of non-prompt J/ in the inclusive J/ yields shows no dependence on the charged-particle multiplicity at central rapidity. Charm and beauty hadron relative yields exhibit a similar increase with increasing charged-particle multiplicity. The measurements are compared to PYTHIA 8, EPOS 3 and percolation calculations. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.title | Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at √s = 7 TeV | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.subject.nsi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | nb_NO |
dc.subject.nsi | VDP::Nuclear and elementary particle physics: 431 | nb_NO |
dc.source.volume | 2015:148 | nb_NO |
dc.source.journal | Journal of High Energy Physics (JHEP) | nb_NO |
dc.source.issue | 9 | nb_NO |
dc.identifier.doi | 10.1007/JHEP09(2015)148 | |
dc.identifier.cristin | 1291279 | |
dc.relation.project | Norges forskningsråd: 217288 | nb_NO |
cristin.unitcode | 222,58,4,0 | |
cristin.unitname | Institutt for mikrosystemer | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |