Browsing by Subject "TRANSITIONS"
Now showing items 1-9 of 9
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(American Physical Society, 2006)We have measured the beta-decay branching ratio for the transition from Na-21 to the first excited state of Ne-21. A recently published test of the standard model, which was based on a measurement of the beta-nu correlation ...
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(American Physical Society, 2002)The measured ft values for superallowed 0(+)-->0(+) nuclear beta decay can be used to obtain the value of the vector coupling constant and thus to test the unitarity of the Cabibbo-Kobayashi-Maskawa matrix. An essential ...
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(American Physical Society, 2008)A simple formula is obtained for coupling electrons in a complex system to the electromagnetic field. It includes the effect of intra-atomic excitations and nuclear motion, and can be applied in, e.g., first-principles-based ...
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(American Physical Society, 1992)
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(American Physical Society, 1998)Ions with charge states as high as 80+, produced in the Lawrence Livermore National Laboratory electron beam ion trap were extracted and transferred to a Penning ion trap (RETRAP). RETRAP was operated at cryogenic temperature ...
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(American Physical Society, 2002)We present nonadiabatic simulations of the coherent response of crystalline GaAs irradiated by intense femtosecond-scale laser pulses. Above a threshold fluence, which corresponds to promotion of about 12% of the valence ...
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Improved calculation of the isospin-symmetry-breaking corrections to superallowed Fermi beta decay (American Physical Society, 2008)We report new shell-model calculations of the isospin-symmetry-breaking correction delta(C) to superallowed 0(+)-> 0(+) nuclear beta decay. The most important improvement is the inclusion of core orbitals, which are ...
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(American Physical Society, 1997)
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(American Physical Society, 2005)We have measured the total intensity of K x rays relative to 129.4-keV gamma rays from decay of the second excited state in Ir-191. This (M1+E2) transition was observed following the beta decay of 15.4-d Os-191. Our measured ...