منابع مشابه
High-precision measurement of the half-life of 62Ga
B. Blank, G. Savard, J. Döring, A. Blazhev, G. Canchel, M. Chartier, D. Henderson, Z. Janas, R. Kirchner, I. Mukha, E. Roeckl, K. Schmidt, and J. Żylicz Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA; Centre d’Etudes Nucléaires de Bordeaux-Gradignan, Le Haut-Vigneau, B.P. 120, F-33175 Gradignan, France; GSI Darmstadt, Planckstrasse 1, D-64291 Darmstadt, Germany; Universit...
متن کاملHigh precision half - life measurement of the superallowed β - emitter 38 Ca
We have now analyzed the results obtained from our half-life measurement of Ca. In that measurement, we produced Ca via the H(K, 2n) reaction at a primary beam energy of 30A MeV. A 99%-pure Ca beam was obtained at the focal plane of the MARS spectrometer, from which it exited the vacuum system through a 50-μm thick Kapton window, passed through a 0.3-mm-thick BC404 scintillator and a stack of a...
متن کاملPrecision measurement of the 6He half-life and the weak axial current in nuclei.
Studies of 6He beta decay along with tritium can play an important role in testing ab initio nuclear wave-function calculations and may allow for fixing low-energy constants in effective-field theories. Here, we present an improved determination of the 6He half-life to a relative precision of 3×10(-4). Our value of 806.89±0.11(stat)(-0.19syst)(+0.23) ms resolves a major discrepancy between pre...
متن کاملHalf - life of the electron - capture decay of 97 Ru : Precision measurement shows no temperature dependence
We have measured the half-life of the electron-capture (ec) decay of 97Ru 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 same within 0.1%. This demonstrates that a recent claim that the ec decay half-life for 7Be changes by 0.9% ± 0.2% under similar circumstances certainly cannot be generalized to ot...
متن کاملPrecise Half-Life Measurement of Ga
In last year’s Progress Report we reported on measurements of the β-decay of Ga, including a preliminary value for its halflife [1]. We report here on an additional measurement of the half-life focused on exposing systematic effects that could affect the result. We obtained Ga from the MARS recoil spectrometer by bombarding a cooled hydrogen gas target with Zn at 42A MeV. Special care was taken...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2016
ISSN: 2469-9985,2469-9993
DOI: 10.1103/physrevc.93.025503