Complete results for five years of GNO solar neutrino observations
Abstract
We report the complete GNO solar neutrino results for the measuring periods GNO III, GNO II, and GNO I. The result for GNO III (last 15 solar runs) is [54.3 + 9.9 - 9.3 (stat.)+- 2.3 (syst.)] SNU (1 sigma) or [54.3 + 10.2 - 9.6 (incl. syst.)] SNU (1 sigma) with errors combined. The GNO experiment is now terminated after altogether 58 solar exposure runs that were performed between May 20, 1998 and April 9, 2003. The combined result for GNO (I+II+III) is [62.9 + 5.5 - 5.3 (stat.) +- 2.5 (syst.)] SNU (1 sigma) or [62.9 + 6.0 - 5.9] SNU (1 sigma) with errors combined in quadrature. Overall, gallium based solar observations at LNGS (first in GALLEX, later in GNO) lasted from May 14, 1991 through April 9, 2003. The joint result from 123 runs in GNO and GALLEX is [69.3 +- 5.5 (incl. syst.)] SNU (1 sigma). The distribution of the individual run results is consistent with the hypothesis of a neutrino flux that is constant in time. Implications from the data in particle- and astrophysics are reiterated.
Cite
@article{arxiv.hep-ex/0504037,
title = {Complete results for five years of GNO solar neutrino observations},
author = {GNO COLLABORATION and M. Altmann and M. Balata and P. Belli and E. Bellotti and R. Bernabei and E. Burkert and C. Cattadori and R. Cerulli and M. Chiarini and M. Cribier and S. d'Angelo and G. Del Re and K. H. Ebert and F. v. Feilitzsch and N. Ferrari and W. Hampel and F. X. Hartmann and E. Henrich and G. Heusser and F. Kaether and J. Kiko and T. Kirsten and T. Lachenmaier and J. Lanfranchi and M. Laubenstein and K. Luetzenkirchen and K. Mayer and P. Moegel and D. Motta and S. Nisi and J. Oehm and L. Pandola and F. Petricca and W. Potzel and H. Richter and S. Schoenert and M. Wallenius and M. Wojcik and L. Zanotti},
journal= {arXiv preprint arXiv:hep-ex/0504037},
year = {2008}
}
Comments
22 pages incl. 9 Figures and 8 Tables. to appear in: Physics Letters B (accepted April 13, 2005) PACS: 26.65.+t ; 14.60.Pq