Title: Precise Determination of the Unperturbed 8B Neutrino Spectrum
Authors: Roger, Thomas ×
B├╝scher, Jeroen
Bastin, Beyhan
Kirsebom, O.S.
Raabe, Riccardo
Alcorta, M.
Aysto, J.
Borge, M.J.G.
Carmona-Gallardo, M.
Cocolios, Thomas Elias
Cruz, J.
Dendooven, P.
Fraile, L.M.
Fynbo, H.O.U.
Galaviz, D.
Gasques, L.R.
Giri, G.S.
Huyse, Mark
Hyldegaard, S.
Jungmann, K.
Kruithof, W.L.
Lantz, M.
Perea, A.
Riisager, K.
Saastamoinen, A.
Santra, B.
Shidling, P.D.
Sohani, M.
Sørensen, A.J.
Tengblad, O.
Traykov, Emil
van der Hoek, D.J.
Van Duppen, Piet
Versolato, O.O.
Wilschut, H.W. #
Issue Date: Apr-2012
Publisher: American Physical Society
Series Title: Physical Review Letters vol:108 issue:16
Article number: 162502
Abstract: A measurement of the final state distribution of the 8B decay, obtained by implanting a 8B beam in a double-sided silicon strip detector, is reported here. The present spectrum is consistent with a recent independent precise measurement performed by our collaboration at the IGISOL facility, Jyva¨skyla¨ [O. S. Kirsebom et al., Phys. Rev. C 83, 065802 (2011)]. It shows discrepancies with previously measured spectra, leading to differences in the derived neutrino spectrum. Thanks to a low detection threshold, the
neutrino spectrum is for the first time directly extracted from the measured final state distribution, thus avoiding the uncertainties related to the extrapolation of R-matrix fits. Combined with the IGISOL data, this leads to an improvement of the overall errors and the extension of the neutrino spectrum at high energy. The new unperturbed neutrino spectrum represents a benchmark for future measurements of the solar neutrino flux as a function of energy.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
ESAT - ELECTA, Electrical Energy Computer Architectures
× corresponding author
# (joint) last author

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