Pion production, nuclear Dirac phenomenology, and the. pi. NN vertex

Journal Article · Mon Sep 21 04:00:00 EDT 1981 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.47.818· OSTI ID:6265204

Cooper, E D; Sherif, H S

The amplitude for the ( p,..pi../sup +/) reaction is calculated in a relativistic one-nucleon model with use of a distorted-wave Born-approximation approach. The nucleon continuum and bound-state wave functions are solutions of Dirac equations with appropriate vector and scalar nuclear potentials. Calculations with the pseudovector ..pi..NN coupling, which satisfies the constraints of partial conservation of the axial-vector current, are in much better agreement with the data than calculations with the simple pseudoscalar coupling.

• Research Organization: Nuclear Research Center, University of Alberta, Edmonton, Alberta T6G 2N5, Canada
• OSTI ID: 6265204
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 47:12; ISSN PRLTA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
AMPLITUDES
ANALYZING POWER
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BORN APPROXIMATION
BOSONS
CALCIUM 40 TARGET
CALCIUM 41
CALCIUM ISOTOPES
CAPTURE
CARBON 12 TARGET
CARBON 13
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
COUPLING CONSTANTS
CROSS SECTIONS
DIFFERENTIAL EQUATIONS
DIRAC EQUATION
DWBA
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
EQUATIONS
EVEN-ODD NUCLEI
FUNCTIONS
HADRON REACTIONS
HADRONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIGHT NUCLEI
MATRICES
MESONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
OXYGEN 16 TARGET
OXYGEN 17
OXYGEN ISOTOPES
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE PRODUCTION
PIONS
PIONS PLUS
PROTON REACTIONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
S MATRIX
SCATTERING AMPLITUDES
STABLE ISOTOPES
TARGETS
WAVE EQUATIONS
WAVE FUNCTIONS
YEARS LIVING RADIOISOTOPES