Browsing by Subject "LIVES"

Now showing items 1-5 of 5

    • Half-life of the electron-capture decay of (97)Ru: Precision measurement shows no temperature dependence 
      Goodwin, J. R.; Golovko, V. V.; Iacob, V. E.; Hardy, John C. (American Physical Society, 2009)
      We have measured the half-life of the electron-capture (ec) decay of (97)Ru in a metallic environment, both at low temperature (19 K), and also at room temperature. We find the half-lives at both temperatures to be the ...
    • Precise half-life measurement of the superallowed beta(+) emitter (10)C 
      Iacob, V. E.; Hardy, John C.; Golovko, V.; Goodwin, J.; Nica, N.; Park, H. I.; Trache, L.; Tribble, Robert E. (American Physical Society, 2008)
      The half-life of (10)C has been measured to be 19.310(4) s, a result with 0.02% precision, which is a factor of three improvement over the best previous result. Since (10)C is the lightest superallowed 0(+)-> 0(+) beta(+) ...
    • Precise half-life measurement of the superallowed beta(+) emitter (26)Si 
      Iacob, V. E.; Hardy, John C.; Banu, A.; Chen, L.; Golovko, V. V.; Goodwin, J.; Horvat, V.; Nica, N.; Park, H. I.; Trache, L.; Tribble, Robert E. (American Physical Society, 2010)
      We measured the half-life of the superallowed 0(+) -> 0(+) beta(+) emitter (26)Si to be 2245.3(7) ms. We used pure sources of (26)Si and employed a high-efficiency gas counter, whichwas sensitive to positrons from both ...
    • Precise half-life measurement of the superallowed beta(+) emitter (38)K(m) 
      Ball, G. C.; Boisvert, G.; Bricault, P.; Churchman, R.; Dombsky, M.; Lindner, T.; Macdonald, J. A.; Vandervoort, E.; Bishop, S.; D'Auria, J. M.; Hardy, John C.; Iacob, V. E.; Leslie, J. R.; Mak, H. -B. (American Physical Society, 2010)
      The half-life of (38)K(m) has been measured to be 924.46(14) ms, a result that is a factor of two more precise than any of the five previous measurements of this quantity. The previous results are not consistent with one ...
    • Precise half-life measurements for the superallowed beta(+) emitters Ar-34 and Cl-34 
      Iacob, V. E.; Hardy, John C.; Brinkley, J. F.; Gagliardi, Carl A.; Mayes, V. E.; Nica, N.; Sanchez-Vega, M.; Tabacaru, G.; Trache, L.; Tribble, Robert E. (American Physical Society, 2006)
      To contribute meaningfully to any test of the unitarity of the Cabibbo-Kobayashi-Maskawa (CKM) matrix, the measured ft value of a superallowed 0(+)-> 0(+) beta(+) transition must be obtained to a precision of 0.1% or better. ...