Positive-pion double-charge-exchange reaction: experiments on the isotopic pairs oxygen-16,18 and magnesium-24,26
Creators
Description
The (π+,π-) double-exchange (DCX) reaction has been performed on targets of T = 0,1 isospin (and isotopic) pairs 1618O and 2426Mg. Energy excitation functions of dsigma/dΩ, across the (3,3) π-N resonance, are presented for transitions to double-isobaric analog state (DIAS) and non-DIAS ground-state residual nuclei. Angular distributions in the region of 50 to 330 are presented for the DIAS from the T - 1 nuclei. The simularities and differences of DIAS and non-DIAS distributions are discussed in relation to reaction-mechanism and nuclear-structure effects. Also, a simple, two-amplitude model for the 18O excitation function, consistent with the data, is presented. The utility of DCX in nuclear mass measurements is discussed, with some examples
Availability note (English)
University Microfilms Order No. 82-17,958.Additional details
Publishing Information
- Imprint Pagination
- 144 p.
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14782284
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data, Thesis, Non-conventional Literature
- Descriptors DEI
- ANGULAR DISTRIBUTION; CHARGE-EXCHANGE REACTIONS; EXCITATION FUNCTIONS; EXPERIMENTAL DATA; ISOBARIC ANALOGS; MAGNESIUM 24 TARGET; MAGNESIUM 26 TARGET; NUCLEAR MODELS; OXYGEN 16 TARGET; OXYGEN 18 TARGET; PION PLUS REACTIONS; PIONS MINUS
- Descriptors DEC
- ANTIMATTER; ANTIMESONS; ANTIPARTICLES; BOSONS; DATA; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY LEVELS; HADRON REACTIONS; HADRONS; INFORMATION; MATHEMATICAL MODELS; MATTER; MESON REACTIONS; MESONS; NUCLEAR REACTIONS; NUMERICAL DATA; PION REACTIONS; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; TARGETS