Charged-particle multiplicities in pp interactions at sqrt(s) = 900 GeV measured with the ATLAS detector at the LHC

ATLAS Collaboration, Wahid Bhimji, Andy Buckley, Philip Clark, Robert Harrington, Victoria Martin

Research output: Contribution to journalArticlepeer-review

Abstract

The first measurements from proton-proton collisions recorded with the ATLAS detector at the LHC are presented. Data were collected in December 2009 using a minimum-bias trigger during collisions at a centre-of-mass energy of 900 GeV. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity, and the relationship between mean transverse momentum and charged-particle multiplicity are measured for events with at least one charged particle in the kinematic range
Original languageEnglish
Pages (from-to)21-42
Number of pages22
JournalPhysics Letters B
VolumeB688
DOIs
Publication statusPublished - 2010

Keywords

  • hep-ex

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