Quick Search:

uzh logo
Browse by:
bullet
bullet
bullet
bullet

Zurich Open Repository and Archive

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-58842

CMS Collaboration,; Amsler, C; Chiochia, V; Snoek, H; Favaro, C; Verzetti, M; Storey, J; Aguiló, E; Schmitt, A; De Visscher, S; Otyugova, P; Millan, B; Ivova, M; et al, (2011). Charged particle multiplicities in pp interactions at √s = 0.9, 2.36, and 7 TeV. Journal of High Energy Physics, (1):79.

[img]
Preview
Accepted Version
PDF
889kB

View at publisher
[img]
Preview
Published Version
PDF
722kB

Abstract

Measurements of primary charged hadron multiplicity distributions are presented for non-single-diffractive events in proton-proton collisions at centre-of-mass energies of sqrt(s) = 0.9, 2.36, and 7 TeV, in five pseudorapidity ranges from |eta|<0.5 to |eta|<2.4. The data were collected with the minimum-bias trigger of the CMS experiment during the LHC commissioning runs in 2009 and the 7 TeV run in 2010. The multiplicity distribution at sqrt(s) = 0.9 TeV is in agreement with previous measurements. At higher energies the increase of the mean multiplicity with sqrt(s) is underestimated by most event generators. The average transverse momentum as a function of the multiplicity is also presented. The measurement of higher-order moments of the multiplicity distribution confirms the violation of Koba-Nielsen-Olesen scaling that has been observed at lower energies.

Citations

Altmetrics

Downloads

56 downloads since deposited on 14 Feb 2012
29 downloads since 12 months

Detailed statistics

Additional indexing

Other titles:Charged particle multiplicities in pp interactions at sqrt(s) = 0.9, 2.36, and 7 TeV
Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
DDC:530 Physics
Language:English
Date:2011
Deposited On:14 Feb 2012 18:41
Last Modified:13 Jun 2014 13:06
Publisher:Springer
ISSN:1029-8479
Additional Information:The original publication is available at www.springerlink.com
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:10.1007/JHEP01(2011)079
Related URLs:http://arxiv.org/abs/1011.5531

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page