TY - JOUR
T1 - Pion absorption on nuclei at 65 MeV
AU - Nakayama, K.
AU - Yokota, H.
AU - Ichimaru, K.
AU - Takahata, Y.
AU - Suekane, F.
AU - Chiba, R.
AU - Nakai, K.
AU - Arai, I.
AU - En'yo, H.
AU - Sasaki, S.
AU - Nagae, T.
AU - Sekimoto, M.
PY - 1986/1/1
Y1 - 1986/1/1
N2 - Proton-proton and proton-neutron angular correlations as well as proton and deuteron inclusive spectra from pion absorption on C, Al, Cu, and Ta were measured at T=65 MeV. We compared the results with the prediction of the intranuclear cascade model, assuming that pion absorption proceeds only through two-nucleon absorption processes. The differential cross sections of the (+,p) and (+,pp) reactions were fairly well reproduced by the calculation in a wide angular range. Ratios R of the pion absorption cross section on a pn pair to that on a pp or nn pair, were in agreement between the inclusive and exclusive measurements for C and Al, but for Cu, the inclusive measurement gave a smaller R value. The internuclear cascade calculations for the (,pn) and (-,pp) reactions revealed the importance of the pion charge exchange process before absorption, even at T=65 MeV.
AB - Proton-proton and proton-neutron angular correlations as well as proton and deuteron inclusive spectra from pion absorption on C, Al, Cu, and Ta were measured at T=65 MeV. We compared the results with the prediction of the intranuclear cascade model, assuming that pion absorption proceeds only through two-nucleon absorption processes. The differential cross sections of the (+,p) and (+,pp) reactions were fairly well reproduced by the calculation in a wide angular range. Ratios R of the pion absorption cross section on a pn pair to that on a pp or nn pair, were in agreement between the inclusive and exclusive measurements for C and Al, but for Cu, the inclusive measurement gave a smaller R value. The internuclear cascade calculations for the (,pn) and (-,pp) reactions revealed the importance of the pion charge exchange process before absorption, even at T=65 MeV.
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U2 - 10.1103/PhysRevC.33.1002
DO - 10.1103/PhysRevC.33.1002
M3 - Article
AN - SCOPUS:35949022896
VL - 33
SP - 1002
EP - 1011
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 3
ER -