Dramatic nuclear structure effects in (. pi. ,. pi. N) reactions

Journal Article · Sat Jan 01 04:00:00 EST 1977 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.15.371· OSTI ID:7325421

Silbar, R R; Ginocchio, J N; Sternheim, M M

Ratios of pion-induced nucleon knockout cross sections are discussed utilizing a modified nucleon charge exchange model which takes into account nuclear structure effects on the effective number of nucleons and on the various probabilities for charge exchange. The availability of particle-stable analog states in the charge exchange transitions can give factor of 2 differences in the neutron knockout ratio between isotopes for a given Z. On the other hand, proton knockout ratios are largely independent of nuclear structure. Predictions of the model are in reasonable semiquantitative agreement with all experimental data. (AIP)

• Research Organization: Theoretical Division, Los Alamos Scientific Laboratory, University of California, Los Alamos, New Mexico 87545
• OSTI ID: 7325421
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORON 11 TARGET
CARBON 12 TARGET
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIRECT REACTIONS
FLUORINE 19 TARGET
HADRON REACTIONS
KNOCK-OUT REACTIONS
MESON REACTIONS
NICKEL ISOTOPES
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
OXYGEN ISOTOPES
PHOSPHORUS 31 TARGET
PION REACTIONS
TARGETS
ZINC ISOTOPES