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ELECTRIC-MONOPOLE DIRECTIONAL-CORRELATION EXPERIMENTS

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
Angular-correlation experiments involving conversion electrons are sensitive to a small admixture of electricmonopole (E0) transitions. The coefficient of P/sub 2/(cos theta ) in the correlation function involving a mixed E0 + M1 + E2 transition contains an interference term between the E0 and E2 electrons, which is proportional to the ratio of the E0 and E2 matrix elements. Measurement of this coefficient provides a sensitive means for determining both the magnitude of the monopole matrix element and its phase relative to the E2 gamma-ray matrix element. The effect on the directional-correlation function between such K-conversion electrons and a coincident gamma ray is calculated explicitiy. Specific numerical results are given for Pt (Z = 78) over a range of energies, and the feasibility of the method is illustrated with reference to the particular case of the 2+ yields 2+ 0+ cascade in P/sup 196/. (auth)
Research Organization:
Frankford Arsenal, Philadelphia; Oak Ridge National Lab., Tenn.; Brookhaven National Lab., Upton, N.Y.
NSA Number:
NSA-12-006778
OSTI ID:
4308723
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 109; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English