%0 Journal Article
%T Total Absorption Spectroscopy Study of Rb-92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape
%A IGISOL Collaboration (Zakari-Issoufou, A. A. et al
%A Algora, A.
%A Tain, J. L.
%A Valencia, E.
%A Agramunt, J.
%A Estevez, E.
%A Gelletly, W.
%A Jordan, M. D.
%A Molina, F.
%A Perez-Cerdan, A. B.
%A Rubio, B.
%J Physical Review Letters
%D 2015
%V 115
%N 10
%I Amer Physical Soc
%@ 0031-9007
%G English
%F IGISOLCollaborationZakari-Issoufou_etal2015
%O WOS:000360603500002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2375), last updated on Fri, 28 Dec 2018 13:29:11 +0000
%X The antineutrino spectra measured in recent experiments at reactors are inconsistent with calculations based on the conversion of integral beta spectra recorded at the ILL reactor. Rb-92 makes the dominant contribution to the reactor antineutrino spectrum in the 5-8 MeV range but its decay properties are in question. We have studied Rb-92 decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed.
%R 10.1103/PhysRevLett.115.102503
%U http://arxiv.org/abs/1504.05812
%U https://doi.org/10.1103/PhysRevLett.115.102503
%P 102503-6pp