The energy spectrum of recoil electrons from solar neutrino scattering, as observed by Superkamiokande, is deformed with respect to that expected from SSM calculations. We considered nu - e scattering from neutrinos produced by the electron-capture on B-8 nuclei, e(-)+B-8 --> Be-8* + nu(e), as a possible explanation of the spectral deformation. A flux Phi(eB) similar or equal to 10(4) cm(-2) s(-1) could account for Superkamiokande solar neutrino data. However this explanation is untenable, since the theoretical prediction, Phi(eB) = (1.3 +/- 0.2) cm(-2) s(-1), is smaller by four orders of magnitude. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

Electron capture on B-8 nuclei and Superkamiokande results

VILLANTE, FRANCESCO LORENZO
1999-01-01

Abstract

The energy spectrum of recoil electrons from solar neutrino scattering, as observed by Superkamiokande, is deformed with respect to that expected from SSM calculations. We considered nu - e scattering from neutrinos produced by the electron-capture on B-8 nuclei, e(-)+B-8 --> Be-8* + nu(e), as a possible explanation of the spectral deformation. A flux Phi(eB) similar or equal to 10(4) cm(-2) s(-1) could account for Superkamiokande solar neutrino data. However this explanation is untenable, since the theoretical prediction, Phi(eB) = (1.3 +/- 0.2) cm(-2) s(-1), is smaller by four orders of magnitude. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/15569
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 3
social impact