Importance of quadrupole coupling for low energy pion charge exchange reactions

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.34.353· OSTI ID:5646335

Gerace, W J; Leonard, W J; Sparrow, D A

Pion single and double charge exchange reactions at 50 MeV on /sup 14/C are studied using a conventional coupled channels approach. Inclusion of quadrupole transitions through the 2/sup +/ T-italic = 1 state in /sup 14/N is essential for understanding these reactions. Fitting the single charge exchange data and including quadrupole contributions lead directly to a reasonable description of the double charge exchange data. It is the deep forward minimum of the single charge exchange data, not the forward peaking of the double charge exchange data, that is more likely to have new implications for the pion-nucleus interactions. Investigation of the /sup 18/O double charge exchange data supports these conclusions.

• Research Organization: Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01003
• OSTI ID: 5646335
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 34:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CARBON 14 TARGET
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL THEORY
DISTRIBUTION
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
HADRON REACTIONS
ISOTOPES
LIGHT NUCLEI
MESON REACTIONS
MEV RANGE
MEV RANGE 10-100
NITROGEN 14
NITROGEN ISOTOPES
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
OXYGEN 18
OXYGEN ISOTOPES
PARITY
PARTICLE PROPERTIES
PION PLUS REACTIONS
PION REACTIONS
SPIN
STABLE ISOTOPES
TARGETS