= Maurice Goldhaber
{c}
{tag=Physicist}
{title2=1911-2011}
{wiki}
<Maurice Goldhaber>, <L. Grodzins> and <A. W. Sunyar> inferred <neutrino helicity> indirectly from a nuclear-decay sequence. After <electron capture>, the recoiling excited nucleus emits a <gamma ray>; selecting resonantly scattered <gamma rays> preferentially selects a recoil direction. A magnetized absorber analyzes the <circular polarization> of that selected radiation. Combining the angular-momentum relation with the measured polarization gave evidence for negative <neutrino helicity>, rather than requiring a direct spin measurement on a detected <neutrino>.<Helicity of Neutrinos by Maurice Goldhaber and others>[Experimental arrangement, recoil/resonance selection and polarization analysis, pp. 1015–1017]{ref}
\Image[https://upload.wikimedia.org/wikipedia/commons/3/33/2000_BNL_Maurice_Goldhaber.jpg]
{title=Maurice Goldhaber in 2000}
{description=Photograph by CA2MI, dedicated under CC0; https://commons.wikimedia.org/wiki/File:2000_BNL_Maurice_Goldhaber.jpg[file source and credit].}
{source=https://commons.wikimedia.org/wiki/File:2000_BNL_Maurice_Goldhaber.jpg}
{width=250}
Back to article page
