Strange Particle Production in pp Collisions at sqrt(s) = 0.9 and 7 TeV

CMS Collaboration;Quertenmont, Loïc;Khachatryan, Vardan;Basegmez, Suzan;Schul, Nicolas;et.al.
(2011) Journal of High Energy Physics — Vol. 2011, n° 5, p. 64 (2011)

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Authors
  • CMS Collaboration-
    Author
  • Author
  • Khachatryan, VardanYerevan Phys. Inst.
    Author
  • Basegmez, SuzanUCLouvain
    Author
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  • Caudron, JulienUCLouvain
    Author
  • Ceard, LudivineUCLouvain
    Author
  • Author
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  • Favart, DenisUCLouvain
    Author
  • Forthomme, LaurentUCLouvain
    Author
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  • Grégoire, GhislainUCLouvain
    Author
  • Hollar, JonathanUCLouvain
    Author
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  • Liao, JunhuiUCLouvain
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  • Militaru, OtiliaUCLouvain
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  • Nuttens, ClaudeUCLouvain
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  • Ovyn, SéverineUCLouvain
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  • Pagano, DavideUCLouvain
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  • Pin, ArnaudUCLouvain
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  • Piotrzkowski, KrzysztofUCLouvain
    Author
  • Schul, NicolasUCLouvain
    Author
  • et. al.
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Abstract
The spectra of strange hadrons are measured in proton-proton collisions, recorded by the CMS experiment at the CERN LHC, at centre-of-mass energies of 0.9 and 7 TeV. The K^0_s, Lambda, and Xi^- particles and their antiparticles are reconstructed from their decay topologies and the production rates are measured as functions of rapidity and transverse momentum. The results are compared to other experiments and to predictions of the PYTHIA Monte Carlo program. The transverse momentum distributions are found to differ substantially from the PYTHIA results and the production rates exceed the predictions by up to a factor of three.
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Citations

CMS Collaboration, Quertenmont, L., Khachatryan, V., Basegmez, S., Bruno, G., Caudron, J., Ceard, L., Cortina Gil, E., de Favereau de Jeneret, J., Delaere, C., Favart, D., Forthomme, L., Giammanco, A., Grégoire, G., Hollar, J., Lemaitre, V., Liao, J., Militaru, O., Nuttens, C., et al. (2011). Strange Particle Production in pp Collisions at sqrt(s) = 0.9 and 7 TeV. Journal of High Energy Physics, 2011(5), 64. https://doi.org/10.1007/JHEP05(2011)064 (Original work published 2011)