Radiative electron capture in the first-forbidden unique decay of {sup 81}Kr

Journal Article · Fri Oct 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.044308· OSTI ID:21421324

Mianowski, S; Werner-Malento, E; Korgul, A; Pomorski, M; Pachucki, K; Pfuetzner, M; Szweryn, B; Zylicz, J ^[1]; Hornshoej, P ^[2]; Nilsson, T ^[3]; Rykaczewski, K ^[4]

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1. Faculty of Physics, University of Warsaw, Hoza 69, 00-681 Warsaw (Poland)
2. Institute of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C (Denmark)
3. Fundamental Physics, Chalmers University of Technology, Gothenburg (Sweden)
4. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

The photon spectrum accompanying the orbital K-electron capture in the first-forbidden unique decay of {sup 81}Kr was measured. The total radiation intensity for photon energies larger than 50 keV was found to be 1.42(22)x10{sup -4} per K capture. Both the shape of the spectrum and its intensity relative to the ordinary, nonradiative capture rate are compared to theoretical predictions. The best agreement is found for the recently developed model that employs the length gauge for the electromagnetic field.

• OSTI ID: 21421324
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BETA DECAY RADIOISOTOPES
BOSONS
CAPTURE
DECAY
ELECTROMAGNETIC FIELDS
ELECTRON CAPTURE
ELECTRON CAPTURE DECAY
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-ODD NUCLEI
FORECASTING
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
K CAPTURE
KEV RANGE
KEV RANGE 10-100
KRYPTON 81
KRYPTON ISOTOPES
MASSLESS PARTICLES
NUCLEAR DECAY
NUCLEI
PHOTONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHAPE
SPECTRA
YEARS LIVING RADIOISOTOPES