Two-nucleon pion absorption in 3,4He |
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| Authors: | J Källne J Davis RC Minehart RR Whitney RL Boudrie J McClelland AW Stetz |
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| Institution: | University of Virginia, Charlottesville, VA 22901, USA;Los Alamos Scientific Laboratory, Los Alamos, NM 87545, USA;University of California, Los Angeles, CA 97331, USA;Oregon State University, Corvallis, OR, USA |
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| Abstract: | Results are presented for π+NN → Np yields in 3,4He relative to πd → pp from (π, p) measurements at energies between 50 and 295 MeV and estimates are given for total cross sections. These yields are nearly proportional to the number of target NN pairs, which is not true for 6Li and heavier nuclei. This is believed to indicate that πNN → Np is sensitive to the NN short-range behavior which is deuteron-like for 3,4He but not always so for NN pairs in other nuclei. |
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