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On the reactions p + p↦p + Λ + K+ and p + p↦p + Σ0 + K+ near thresholds

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Abstract:

The cross-sections for the reactions of the strange production p + p ↦ p + Λ + K+ and p + p ↦ p + Σ0 + K+ near thresholds of the final states pΛK+ and pΣ0K+ are calculated in the effective Lagrangian approach. Our approach is based on the dominant contribution of the one-pion exchange and strong interaction of the colliding protons in the initial state. The theoretical values of the cross-sections agree reasonably well with the experimental data. The polarization properties of the Λ- and Σ0-hyperons are discussed.

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Authors and Affiliations

  1. State Technical University of St. Petersburg, Department of Nuclear Physics,Polytechnicheskaya 29, 195251 St. Petersburg, Russian Federation, , , , , , RU

    A.Ya. Berdnikov, Ya.A. Berdnikov, A.N. Ivanov, V.F. Kosmach, M.D. Scadron & N.I. Troitskaya

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  1. A.Ya. Berdnikov
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  2. Ya.A. Berdnikov
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  3. A.N. Ivanov
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  4. V.F. Kosmach
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  5. M.D. Scadron
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  6. N.I. Troitskaya
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Received: 1 November 2000 / Accepted: 30 November 2000

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Berdnikov, A., Berdnikov, Y., Ivanov, A. et al. On the reactions p + p↦p + Λ + K+ and p + p↦p + Σ0 + K+ near thresholds. Eur Phys J A 9, 425–432 (2000). https://doi.org/10.1007/s100500070027

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  • DOI: https://doi.org/10.1007/s100500070027

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