Observation of a time-reversal--like phase shift between competing multipoles in a nuclear gamma transition

Journal Article · Mon Feb 05 04:00:00 EST 1979 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.42.354· OSTI ID:6320740

Gimlett, J L; Henrikson, H E; Cheung, N K; Boehm, F

The ratio of the matrix elements for two competing multipoles (E2 and M1) for the 129-keV transition in /sup 191/Ir was found to have an imaginary part with a phase angle of (-4.7 +- 0.3) x 10/sup -3/ rad. This time-reversal--like phase shift may be attributed, at least in part, to quantum electrodynamical effects in the atomic final state. The observed phase shift, however, is somewhat larger than the atomic final-state phase calculated by Goldwire and Hannon.

• Research Organization: California Institute of Technology, Pasadena, California 91125
• OSTI ID: 6320740
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 42:6; ISSN PRLTA
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
DATA
DATA FORMS
DAYS LIVING RADIOISOTOPES
DECAY
E2-TRANSITIONS
ELECTRODYNAMICS
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FIELD THEORIES
GAMMA SPECTRA
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
INVARIANCE PRINCIPLES
IRIDIUM 191
IRIDIUM ISOTOPES
ISOLATED VALUES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIFETIME
M1-TRANSITIONS
MATRIX ELEMENTS
MINUTES LIVING RADIOISOTOPES
MIXING RATIO
MULTIPOLE TRANSITIONS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
OSMIUM 191
OSMIUM ISOTOPES
PHASE SHIFT
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTRA
STABLE ISOTOPES
T INVARIANCE