dc.contributor.author | Aamodt, K. | eng |
dc.contributor.author | Abel, N. | eng |
dc.contributor.author | Abeysekara, U. | eng |
dc.contributor.author | Alme, Johan | eng |
dc.contributor.author | Bablok, Sebastian Robert | eng |
dc.contributor.author | Fehlker, D. | eng |
dc.contributor.author | Haaland, Øystein Senneset | eng |
dc.contributor.author | Huang, M. | eng |
dc.contributor.author | Larsen, Dag Toppe | eng |
dc.contributor.author | Nystrand, J. | eng |
dc.contributor.author | Ullaland, K. | eng |
dc.contributor.author | Øvrebekk, G. | eng |
dc.date.accessioned | 2011-03-14T08:03:29Z | |
dc.date.available | 2011-03-14T08:03:29Z | |
dc.date.issued | 2010-08-03 | eng |
dc.identifier.uri | https://hdl.handle.net/1956/4579 | |
dc.description.abstract | The pseudorapidity density and multiplicity distribution of charged particles produced in proton–proton collisions at the LHC, at a centre-of-mass energy Ös=7s=7 TeV, were measured in the central pseudorapidity region |η|<1. Comparisons are made with previous measurements at Ös=0.9s=09 TeV and 2.36 TeV. At Ös=7s=7 TeV, for events with at least one charged particle in |η|<1, we obtain dNch/dh = 6.01±0.01(stat.)+0.20-0.12(syst.)dNchd=601001(stat)+020−012(syst). This corresponds to an increase of 57.6%±0.4%(stat.)+3.6-1.8%(syst.)576%04%(stat)+36−18%(syst) relative to collisions at 0.9 TeV, significantly higher than calculations from commonly used models. The multiplicity distribution at 7 TeV is described fairly well by the negative binomial distribution. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Springer | en_US |
dc.rights | Attribution-NonCommercial CC BY-NC | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/2.5/ | eng |
dc.title | Charged-particle multiplicity measurement in proton–proton collisions at √s = 7 TeV with ALICE at LHC | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | CERN for the benefit of the ALICE collaboration 2010 | en_US |
dc.rights.holder | Copyright CERN for the benefit of the ALICE collaboration 2010. This article is published with open access at Springerlink.com | en_US |
dc.identifier.doi | https://doi.org/10.1140/epjc/s10052-010-1350-2 | |
dc.identifier.cristin | 347521 | |
dc.source.journal | The European Physical Journal C | |
dc.subject.nsi | VDP::Mathematics and natural science: 400 | en_US |