Positive-pion photoproduction on /sup 12/C near threshold

Journal Article · Sun Apr 01 04:00:00 EST 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.19.1416· OSTI ID:6078107

Milder, F L; Booth, E C; Chasan, B; Bernstein, A M; Comuzzi, J; Franklin, G; Nagl, A; Uberall, H

The ..pi../sup +/ photoproduction on /sup 12/C has been measured relative to the proton from 0--20 MeV above threshold. Total cross sections from 0--12 MeV, summed over states in /sup 12/B have been extracted with accuracies between 5% and 8% relative to the proton photoproduction cross section. Distorted wave impulse approximation calculations have been performed and show good agreement with the data. The yield from 0--3 MeV above threshold is well described by a one parameter fit for the ground state cross section using only the sigma-arrow-right x epsilon-arrow-right term of the Hamiltonian.

• Research Organization: Department of Physics, Boston University, Boston, Massachusetts 02215
• OSTI ID: 6078107
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 19:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BASIC INTERACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORON 12
BORON ISOTOPES
BOSONS
BREMSSTRAHLUNG
CARBON 12 TARGET
CROSS SECTIONS
DISTORTED WAVE THEORY
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
HADRONS
HAMILTONIANS
IMPULSE APPROXIMATION
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL OPERATORS
MATRIX ELEMENTS
MESONS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
OPTICAL MODELS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTONUCLEAR REACTIONS
PHOTOPRODUCTION
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
QUANTUM OPERATORS
RADIATIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
TARGETS
THRESHOLD ENERGY
TOTAL CROSS SECTIONS