DEUTERON PHOTODISINTEGRATION AND N-P CAPTURE BELOW PION PRODUCTION THRESHOLD

Journal Article · Sun Mar 01 04:00:00 EST 1964 · Annals of Physics (New York) (U.S.)

DOI:https://doi.org/10.1016/0003-4916(64)90084-3· OSTI ID:4050422

Partovi, F

A nonrelativistic, phenomenological treatment of deuteron photodisintegration and radiative n-p capture is presented. The only approximations made are the neglect of nucleon structure, pion exchange currents, and multipoles higher than the octupole. In addition to the total and differential cross section, all parameters necessary to specify the final polarization with an arbitrarily polarized incident beam are calculated. Photodisintegration is calculated at laboratory photon energies of 10, 20, 40, 60, 80, 100, 120, and 140 Mev, and n-p capture of laboratory neutron energies of 0.1 and 0.548 Mev. Hamada's potential is used for computation of the wave functions. Photodisintegration calculations are done in several approximations to exhibit the effect of various terms. It was found that spin E1 and spin M2 transitions to triplet states, usually omitted, are important. The thermal neutron capture cross section found from exact wave functions shows an improvement of 2% over the zero-range approximation, thus accounting for some of the discrepancy with experiment. It is hoped that this improvement will close the 5% gap between experiment and zero-range theory when a potential that fits the singlet scattering length better than Hamada's is used. Results are compared to experiment where possible. 34 references. (auth)

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• NSA Number: NSA-18-018891
• OSTI ID: 4050422
• Journal Information: Annals of Physics (New York) (U.S.), Journal Name: Annals of Physics (New York) (U.S.) Vol. Vol: 27; ISSN APNYA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BIBLIOGRAPHY
CAPTURE
CROSS SECTIONS
DEUTERONS
ENERGY LEVELS
ENERGY RANGE
MEV RANGE
NEUTRONS
NUCLEAR MODELS
NUMERICALS
PHOTOFISSION
PHYSICS
PIONS
POLARIZATION
PROTONS
QUANTUM MECHANICS
REACTION KINETICS
SCATTERING
SPIN
THERMAL NEUTRONS
TRANSIENTS
ZERO-RANGE APPROXIMATION