Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at √s = 7 TeV
dc.date.accessioned | 2017-10-13T15:25:58Z | |
dc.date.available | 2017-10-13T15:25:58Z | |
dc.date.created | 2015-11-20T10:45:02Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Adam, Jaroslav Adamová, Dagmar Aggarwal, Madan M. Aglieri Rinella, Gianluca Agnello, Michelangelo Agrawal, Nikita Ahammed, Zubayer Ahmed, Ijaz Ahn, Sang Un Aimo, Ilaria Alme, Johan Helstrup, Håvard Hetland, Kristin Fanebust Kileng, Bjarte Altinpinar, Sedat Djuvsland, Øystein Haaland, Øystein Senneset Huang, Meidana Lønne, Per-Ivar Nystrand, Joakim Rehman, Attiq ur Røhrich, Dieter Ullaland, Kjetil Velure, Arild Wagner, Boris Zhang, Haitao Zhou, Zhuo Zhu, Hongsheng Arsene, Ionut Christian Bätzing, Paul Christoph Dordic, Olja Lindal, Svein Mahmood, Sohail Musa Milosevic, Jovan Qvigstad, Henrik Richter, Matthias Røed, Ketil Skaali, Toralf Bernhard Tveter, Trine Spedstad Wikne, Jon Christopher Zhao, Chengxin Langøy, Rune Lien, Jørgen André Aiola, Salvatore Ajaz, Muhammad Akindinov, Alexander Alam, Sk Noor Aleksandrov, Dimitry Alessandro, Bruno ALICE, Collaboration . Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at √s = 7 TeV. Journal of High Energy Physics (JHEP). 2015, 2015:148(9) | |
dc.identifier.uri | http://hdl.handle.net/10852/58796 | |
dc.description.abstract | Prompt D meson and non-prompt J/ψ yields are studied as a function of the multiplicity of charged particles produced in inelastic proton-proton collisions at a centre-of-mass energy of s√=7s=7 TeV. 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/ψ, i.e. the B hadron, contribution to the inclusive J/ψ 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/ψ in the inclusive J/ψ 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. | en_US |
dc.language | EN | |
dc.publisher | Institute of Physics Publishing (IOPP) | |
dc.rights | Attribution 3.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | |
dc.title | Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at √s = 7 TeV | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Adam, Jaroslav | |
dc.creator.author | Adamová, Dagmar | |
dc.creator.author | Aggarwal, Madan M. | |
dc.creator.author | Aglieri Rinella, Gianluca | |
dc.creator.author | Agnello, Michelangelo | |
dc.creator.author | Agrawal, Nikita | |
dc.creator.author | Ahammed, Zubayer | |
dc.creator.author | Ahmed, Ijaz | |
dc.creator.author | Ahn, Sang Un | |
dc.creator.author | Aimo, Ilaria | |
dc.creator.author | Alme, Johan | |
dc.creator.author | Helstrup, Håvard | |
dc.creator.author | Hetland, Kristin Fanebust | |
dc.creator.author | Kileng, Bjarte | |
dc.creator.author | Altinpinar, Sedat | |
dc.creator.author | Djuvsland, Øystein | |
dc.creator.author | Haaland, Øystein Senneset | |
dc.creator.author | Huang, Meidana | |
dc.creator.author | Lønne, Per-Ivar | |
dc.creator.author | Nystrand, Joakim | |
dc.creator.author | Rehman, Attiq ur | |
dc.creator.author | Røhrich, Dieter | |
dc.creator.author | Ullaland, Kjetil | |
dc.creator.author | Velure, Arild | |
dc.creator.author | Wagner, Boris | |
dc.creator.author | Zhang, Haitao | |
dc.creator.author | Zhou, Zhuo | |
dc.creator.author | Zhu, Hongsheng | |
dc.creator.author | Arsene, Ionut Christian | |
dc.creator.author | Bätzing, Paul Christoph | |
dc.creator.author | Dordic, Olja | |
dc.creator.author | Lindal, Svein | |
dc.creator.author | Mahmood, Sohail Musa | |
dc.creator.author | Milosevic, Jovan | |
dc.creator.author | Qvigstad, Henrik | |
dc.creator.author | Richter, Matthias | |
dc.creator.author | Røed, Ketil | |
dc.creator.author | Skaali, Toralf Bernhard | |
dc.creator.author | Tveter, Trine Spedstad | |
dc.creator.author | Wikne, Jon Christopher | |
dc.creator.author | Zhao, Chengxin | |
dc.creator.author | Langøy, Rune | |
dc.creator.author | Lien, Jørgen André | |
dc.creator.author | Aiola, Salvatore | |
dc.creator.author | Ajaz, Muhammad | |
dc.creator.author | Akindinov, Alexander | |
dc.creator.author | Alam, Sk Noor | |
dc.creator.author | Aleksandrov, Dimitry | |
dc.creator.author | Alessandro, Bruno | |
dc.creator.author | ALICE, Collaboration | |
cristin.unitcode | 185,15,4,60 | |
cristin.unitname | Høyenergifysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1291279 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of High Energy Physics (JHEP)&rft.volume=2015:148&rft.spage=&rft.date=2015 | |
dc.identifier.jtitle | Journal of High Energy Physics (JHEP) | |
dc.identifier.volume | 2015:148 | |
dc.identifier.issue | 9 | |
dc.identifier.doi | http://dx.doi.org/10.1007/JHEP09(2015)148 | |
dc.identifier.urn | URN:NBN:no-61546 | |
dc.subject.nvi | VDP::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 1029-8479 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/58796/1/10.1007%25252FJHEP09%25282015%2529148.pdf | |
dc.type.version | PublishedVersion |
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