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SubthresholdK + production on nuclei byπ + mesons

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The inclusiveK + mesons production inπ +-nucleus reactions in the subthreshold energy regime is analyzed with respect to the one-step (π + n→K + Λ) and the two-step (π + n→ηp 1,ηp 2→K + Λ) incoherent production processes on the basis of an appropriate folding model, which allows one to take into account the various forms of an internal nucleon momentum distribution as well as on- and off-shell propagation of the struck target nucleon. Contrary to proton-nucleus reactions primary reaction channel is found to be significant practically at all considered energies. Detailed predictions for theK + total and invariant differential cross sections fromπ +C12- andπ +Pb208-collisions at subthreshold energies are provided.

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Authors and Affiliations

  1. Bonner Nuclear Laboratory, Rice University, P.O. Box 1892, 77251-1892, Houston, TX, USA

    S. V. Efremov

  2. Institute for Nuclear Research, Russian Academy of Sciences, 117312, Moscow, Russia

    E.Ya. Paryev

Authors
  1. S. V. Efremov
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  2. E.Ya. Paryev
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Communicated by W. Weise

One of us (E.Ya.P.) was supported in part by Grant No. N6K000 from the International Science Foundation as well as by Grant No. N6K300 from the International Science Foundation dation and Russian Government.

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Efremov, S.V., Paryev, E. SubthresholdK + production on nuclei byπ + mesons. Z. Phys. A — Hadrons and Nuclei 354, 219–228 (1996). https://doi.org/10.1007/BF02769516

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  • DOI: https://doi.org/10.1007/BF02769516

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