Browsing by Author "Blanpied, G.S."
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Item Reaction 58Ni(π+,2p) at 160 MeV(1986-07) Burger, W.J.; Beise, E.J.; Gilad, S.; Redwine, R.P.; Roos, P.G.; Chant, N.S.; Breuer, H.; Ciangaru, G.; Silk, J.D.; Blanpied, G.S.; Preedom, B.M.; Ritchie, B.G.; Blecher, M.; Gotow, K.; Lee, D.M.; Ziock, H.Data for the 58Ni(π+,2p) reaction at Tπ=160 MeV were obtained for a number of angle pairs. The resultant angular correlations for T1+T2>160 MeV (guaranteed pion absorption) peak at a separation angle corresponding to absorption on a deuteron at rest. However, simple estimates of initial- and final-state scatterings suggest that less than 50% of the absorption cross section arises from absorption on nucleon pairs. The data show little evidence for scattering of pions before absorption on nucleon pairs.