Strangeness suppression in proton-proton collisions
نویسندگان
چکیده
منابع مشابه
Strangeness production in proton - proton and proton - nucleus collisions ∗
In these lectures we discuss the investigation of the strange meson production in protonproton (pp) and in proton-nucleus (pA) reactions within an effective Lagrangian model. The kaon production proceeds mainly via the excitations of N(1650), N(1710), and N(1720) resonant intermediate nucleonic states, in the collision of two initial state nucleons. Therefore, the strangeness production is expe...
متن کاملExperimental results on strangeness production in proton-proton collisions at COSY
The production of K and K− mesons in elementary proton-proton collision has been investigated at the Cooler Synchrotron COSY in Jülich. A high quality proton beam with low emittance and small momentum spread permitted to study the creation of these mesons very close to the kinematical threshold. The energy dependence of the total cross section is investigated using internal beam facilities prov...
متن کاملStrangeness production as a function of charged particle multiplicity in proton-proton collisions
Recent measurements performed in high-multiplicity proton-proton (pp) and proton-lead (p-Pb) collisions have shown features that are reminiscent of those observed in lead-lead (Pb-Pb) collisions. These observations warrant a comprehensive measurement of the production of identified particles. We report on the production of K0 S , Λ, Λ, Ξ ± and Ω± at mid-rapidity measured as a function of multip...
متن کاملStudies of Onia and Strangeness Production in Proton-proton Collisions at LHCb
Studies of strangeness and quarkonia production in the forward region provide important input to the understanding of QCD models in a kinematic range where they have large uncertainties. The LHCb experiment has collected a dataset corresponding to an integrated luminosity of about 3 fb−1 in proton-proton collisions at √ s = 7 and 8 TeV, as well as smaller samples recorded with other LHC operati...
متن کاملF eb 1 99 8 Strangeness production in proton - proton collisions ∗ †
The cross sections of the reaction pp → N KY for K + or K 0 mesons and Λ or Σ hyperons are calculated within the boson exchange model including pion and kaon exchange diagrams. We analyze the dependence of the results on the accuracy of the input πN amplitude. By fixing the πN N coupling constant and the cutoff parameter Λ π at the πN N vertex we calculate the contribution from the kaon exchang...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2002
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.65.057501