Kaon pair production in proton-proton collisions at COSY-ANKE
نویسندگان
چکیده
منابع مشابه
Kaon pair production in proton-proton collisions at COSY-ANKE
The near-threshold production of kaon-pairs has been investigated in protonproton collisions at Cooler Synchrotron (COSY)at Forschungszentrum Jülich. In the pp → ppKK reaction, the invariant mass distributions of Kp, Kpp, and KK indicate the presence of both Kp and KK final state interactions. Total cross sections for pp → ppφ reaction have been determined at excess energies ε of 18.5, 34.5, an...
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Excited neutral hyperons Y 0∗ produced in the pp → pKY 0∗ reaction with a COSY beam momentum of 3.65 MeV/c have masses below 1540 MeV/c. The ANKE spectrometer allows the simultaneous observation of different decay modes: Y 0∗ → πΣ, π∓Σ±, π0Λ,K−p by measuring kaons and pions of either charge in coincidence with protons. We have found indications for a neutral excited hyperon resonance Y 0∗ with ...
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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...
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The near threshold total cross section and angular distributions of KK pair production via the reaction pp −→ ppKK have been studied at an excess energy of Q = 17 MeV using the COSY-11 facility at the cooler synchrotron COSY. The obtained cross section as well as an upper limit at an excess energy of Q = 3 MeV represent the first measurements on the KK production in the region of small excess e...
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Recent results obtained by the COSY – 11 collaboration concerning the production of η and η mesons in the pp → ppMeson reaction are presented. A comparison of the production amplitude for the π, η and η mesons at the same phase space volume allows to conclude that the proton η interaction is in the order of, or smaller than, the proton-π one. A total cross section determined in a preliminary an...
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ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2012
ISSN: 2100-014X
DOI: 10.1051/epjconf/20123706003