ATLAS Collaboration; Mitsou, Vasiliki; Fiorini, Luca; Ros Martínez, Eduardo; Castillo Giménez, María Victoria Perfil; Fuster Verdú, Juan A. Perfil; García García, Carmen Perfil; Cabrera Urbán, Susana Perfil; Martí García, Salvador; Salt Cairols, José Perfil; Lacasta Llácer, Carlos; Valls Ferrer, Juan Antonio; Higón Rodríguez, Emilio Perfil; Ferrer Soria, Antonio Perfil; González de la Hoz, Santiago Perfil; Kaci, Mohammed; Hernández Jiménez, Yesenia; Villaplana Pérez, Miguel | |||
This document is a artículoDate2012 | |||
Este documento está disponible también en : http://dx.doi.org/10.1103/PhysRevD.85.012001 |
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Este documento está disponible también en : http://hdl.handle.net/10550/36182 |
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The production of K(S)(0) and Lambda hadrons is studied in pp collision data at root 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 (Lambda) over bar to Lambda 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 K(S)(0) distributions, substantial disagreements are found in the Lambda distributions of transverse momentum. | |||
ATLAS Collaboration Mitsou, Vasiliki Fiorini, Luca Ros Martínez, Eduardo Castillo Giménez, María Victoria Fuster Verdú, Juan A. García García, Carmen Cabrera Urbán, Susana Martí García, Salvador Salt Cairols, José Lacasta Llácer, Carlos Valls Ferrer, Juan Antonio Higón Rodríguez, Emilio Ferrer Soria, Antonio González de la Hoz, Santiago Kaci, Mohammed Hernández Jiménez, Yesenia Villaplana Pérez, Miguel 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 85 01-012001 1 28 |
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http://dx.doi.org/10.1103/PhysRevD.85.012001 |