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K-s(0) and Lambda production in pp interactions at root s=0.9 and 7 TeV measured with the ATLAS detector at the LHC

Barton, Adam and Borissov, Guennadi and Bouhova-Thacker, Eva and Brodbeck, Timothy and Catmore, James and Chilingarov, Alexandre and Davidson, Ruth and de Mora, Lee and Fox, Harald and Henderson, Robert and Hughes, Gareth and Jones, Roger and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Ratoff, Peter and Smizanska, Maria and Walder, James (2012) K-s(0) and Lambda production in pp interactions at root s=0.9 and 7 TeV measured with the ATLAS detector at the LHC. Physical Review D – Particles and Fields, 85 (1). ISSN 1550-2368

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    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 Λ̅ 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.

    Item Type: Article
    Journal or Publication Title: Physical Review D – Particles and Fields
    Additional Information: Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2012 CERN, for the ATLAS Collaboration
    Subjects: Q Science > QC Physics
    Departments:
    ID Code: 59197
    Deposited By: ep_importer_pure
    Deposited On: 12 Oct 2012 16:32
    Refereed?: Yes
    Published?: Published
    Last Modified: 23 Jul 2014 15:07
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/59197

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