Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at \(\sqrt{s}\) = 7 TeV
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 André | |
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 | 2017-11-03T13:14:04Z | |
dc.date.available | 2017-11-03T13:14:04Z | |
dc.date.issued | 2015-09 | |
dc.Published | Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahmed I, Ahn SU, Aimo I, Alme J, Helstrup H, Hetland KF, Kileng B, Altinpinar S, Djuvsland Ø, Haaland ØS, Huang M, Lønne P, Nystrand J, Rehman Au, Røhrich D, Ullaland K, Velure A, Wagner B, Zhang, Zhou Z, Zhu H, Arsene IC, Bätzing P, Dordic O, Lindal S, Mahmood SM, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Aiola S, Ajaz M, Akindinov A, Alam SN, Aleksandrov D, Alessandro B, ALICE C. 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 | eng |
dc.identifier.issn | 1029-8479 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/16821 | |
dc.description.abstract | Prompt D meson and non-prompt J/\(\psi\) 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 \(\sqrt{s}=7\) 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). D\)^0\), D\)^+\) and D\)^{*+}\) mesons are measured in five \(p_{\rm T}\) intervals from 1 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 D\)^0\)-meson relative yield is also measured as a function of the relative multiplicity at forward pseudorapidity. The non-prompt J/\(\psi\), i.e. the B hadron, contribution to the inclusive J/\(\psi\) production is measured in the di-electron decay channel at central rapidity. It is evaluated for \(p_{\rm T}>1.3\) GeV/\(c\) and \(|y|<0.9\), and extrapolated to \(p_{\rm T}>0\), The fraction of non-prompt J/\(\psi\) in the inclusive J/\(\psi\) 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.iso | eng | eng |
dc.publisher | Springer | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0 | eng |
dc.subject | Hadron-Hadron Scattering | eng |
dc.title | Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at \(\sqrt{s}\) = 7 TeV | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2017-10-09T12:56:45Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright CERN, for the benefit of the ALICE Collaboration | en_US |
dc.identifier.doi | https://doi.org/10.1007/jhep09(2015)148 | |
dc.identifier.cristin | 1291279 | |
dc.source.journal | Journal of High Energy Physics (JHEP) | |
dc.relation.project | Norges forskningsråd: 217288 | |
dc.subject.nsi | VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.subject.nsi | VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 |