Positive pion photoproduction from boron-10 and oxygen-16

Thesis/Dissertation · Fri Dec 31 23:00:00 EST 1982

OSTI ID:6567652

DeCarlo, V A

Differential and total cross sections for the reactions /sup 10/B(..gamma..,..pi../sup +/)/sup 10/Be and /sup 16/O(..gamma..,..pi../sup +/)/sup 16/N are calculated from pion threshold through the (3,3) resonance within the framework of the distorted wave impulse approximation (DWIA). Nuclear wave functions are employed which are consistent with, among other data, transverse (e,e') scattering and pion distortions are included via an optical potential which reproduces low energy ..pi..-nucleus scattering information. Results are compared to experiment and to recent DWIA calculations which differ in their treatment of the elementary photoproduction operator, nuclear wave functions, and ..pi..-nucleus optical potential. Generally, calculated results are in much better agreement with each other than with experiment. Reasons for the discrepancies between theory and experiment are offered and suggestions for future investigations are outlined.

• Research Organization: Pennsylvania State Univ., University Park (USA)
• OSTI ID: 6567652
• Country of Publication: United States
• Language: English

Related Subjects

651315* -- Nuclear Properties & Reactions
A=6-19
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
BASIC INTERACTIONS
BERYLLIUM 10
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORON 10 TARGET
BOSONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISTORTED WAVE THEORY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FUNCTIONS
HADRONS
IMPULSE APPROXIMATION
INFORMATION
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MASSLESS PARTICLES
MESONS
NITROGEN 16
NITROGEN ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
OPTICAL MODELS
OXYGEN 16 TARGET
PARTICLE PRODUCTION
PHOTONS
PHOTONUCLEAR REACTIONS
PHOTOPRODUCTION
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
RADIOISOTOPES
SCATTERING
SECONDS LIVING RADIOISOTOPES
TARGETS
THEORETICAL DATA
TOTAL CROSS SECTIONS
WAVE FUNCTIONS
YEARS LIVING RADIOISOTOPES