Kshort and $Λ$ production in $pp$ interactions at $\\sqrts=0.9$ and 7 TeV measured with the ATLAS detector at the LHC
Journal
Physical Review
Journal Volume
D85
Pages
012001
Date Issued
2012
Author(s)
Aad, Georges et al. (The ATLAS Collaboration)
Abstract
The production of KS0 and Λ hadrons is studied in pp collision data at √s=0.9 and 7 TeV collected with the ATLAS detector at the LHC using a minimum-bias trigger. The observed distributions of transverse momentum, rapidity, and multiplicity are corrected to hadron level in a model-independent way within well-defined phase-space regions. The distribution of the production ratio of Λ̄ to Λ baryons is also measured. The results are compared with various Monte Carlo simulation models. Although most of these models agree with data to within 15% in the KS0 distributions, substantial disagreements are found in the Λ distributions of transverse momentum. © 2012 CERN.
Type
journal article