TY  - JOUR
AU  - IGISOL Collaboration (Zakari-Issoufou, A. A. et al
AU  - Algora, A.
AU  - Tain, J. L.
AU  - Valencia, E.
AU  - Agramunt, J.
AU  - Estevez, E.
AU  - Gelletly, W.
AU  - Jordan, M. D.
AU  - Molina, F.
AU  - Perez-Cerdan, A. B.
AU  - Rubio, B.
PY  - 2015
DA  - 2015//
TI  - Total Absorption Spectroscopy Study of Rb-92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 102503
EP  - 6pp
VL  - 115
IS  - 10
PB  - Amer Physical Soc
AB  - 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.
SN  - 0031-9007
UR  - http://arxiv.org/abs/1504.05812
UR  - https://doi.org/10.1103/PhysRevLett.115.102503
DO  - 10.1103/PhysRevLett.115.102503
LA  - English
N1  - WOS:000360603500002
ID  - IGISOLCollaborationZakari-Issoufou_etal2015
ER  -