Abele H, Baeßler S, Deissenroth M, Glück F, Krempel J, Kreuz M, Märkisch B, Mund D, Schumann M, Soldner T
Physikalisches Institut der Universität Heidelberg, 69120 Heidelberg, Germany.
Physikalisches Institut der Universität Mainz, Staudingerweg 7, D-55128 Mainz, Germany.
J Res Natl Inst Stand Technol. 2005 Aug 1;110(4):377-81. doi: 10.6028/jres.110.056. Print 2005 Jul-Aug.
This article describes measurements of angular-correlation coefficients in the decay of free neutrons with the superconducting spectrometer PERKEO II. A method for measuring the β-asymmetry coefficient A is presented, as well as a new method for determining the neutrino-asymmetry coefficient B, which allows a value for the proton-asymmetry coefficient C to be obtained for the first time. An ongoing experiment is trying to improve the accuracy of these quantities.
本文描述了利用超导光谱仪PERKEO II对自由中子衰变中的角关联系数进行的测量。文中介绍了一种测量β不对称系数A的方法,以及一种确定中微子不对称系数B的新方法,该方法首次使获取质子不对称系数C的值成为可能。一项正在进行的实验正致力于提高这些量的测量精度。