Low-energy pion-nucleus potential in the extended tree-level model for the pion-nucleon interaction |
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| Authors: | B L Birbrair T M Avdeeva Yu A Kalashnikov |
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| Institution: | 1. Petersburg Nuclear Physics Institute, 188350, Gatchina, St.Petersburg, Russia
2. St.Petersburg State University, St. Petersburg, Russia
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| Abstract: | Starting from the extended tree-level model for theπN interaction 1] (hereafter ETLM) we demonstrated that the observed local pion-nucleus repulsion arises from the reduction
of baryon masses in nucleus due to strong scalar nuclear field 2]. This is rather convincing argument in favour of nuclear
relativism because such repulsion has no explanation within the traditional nonrelativistic approach to nucleus.
Communicated by V.V. Anisovich |
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| Keywords: | PACS" target="_blank">PACS 13 75 Gx 36 10 Gv |
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