Large resonance effect in K-shell ionization probability in elastic proton backscattering on /sup 138/Ba

Journal Article · Mon Jan 26 00:00:00 EST 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.58.341· OSTI ID:6639006

Spooner, D W; Stoller, C; Chemin, J; Meyerhof, W E; Scheurer, J; Xu, X

We have measured the K-shell ionization probability P/sub K/ at 172/sup 0/ across the 10.00-MeV isobaric analog resonance in the reaction /sup 138/Ba(p,p) /sup 138/Ba. An excursion of more than 200% from the off-resonance P/sub K/ value permits a sensitive comparison with recently calculated atomic-ionization amplitudes. The effects of nonresonant background nuclear scattering and compound-elastic nuclear scattering are considered. The experimental results are found to be consistent with a negligible compound-elastic contribution.

• Research Organization: Department of Physics, Stanford University, Stanford, California 94305
• OSTI ID: 6639006
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 58:4
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BARIUM 138
INNER-SHELL IONIZATION
ION-ATOM COLLISIONS
PROTONS
ELASTIC SCATTERING
EXPERIMENTAL DATA
K SHELL
MEV RANGE 01-10
NUCLEAR REACTIONS
PROBABILITY
RESONANCE
ALKALINE EARTH ISOTOPES
ATOM COLLISIONS
BARIUM ISOTOPES
BARYONS
COLLISIONS
DATA
ELECTRONIC STRUCTURE
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
FERMIONS
HADRONS
INFORMATION
INTERMEDIATE MASS NUCLEI
ION COLLISIONS
IONIZATION
ISOTOPES
MEV RANGE
NUCLEI
NUCLEONS
NUMERICAL DATA
SCATTERING
STABLE ISOTOPES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena