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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents

ID: 544498.0, MPI für Physik / MPI für Physik
Complete Results for Five Years of GNO Solar Neutrino Observations
Authors:Altmann, M.; Balata, M.; Belli, P.; Bellotti, E.; Bernabei, R.; Burkert, E.; Cattadori, C.; Cerulli, R.; Chiarini, M.; Cribier, M.; d'Angelo, S.; Del Re, G.; Ebert, K. H.; Feilitzsch, F. v.; Ferrari, N.; Hampel, W.; Hartmann, F. X.; Henrich, E.; Heusser, G.; Kaether, F.; Kiko, J.; Kirsten, T.; Lachenmaier, T.; Lanfranchi, J.; Laubenstein, M.; Luetzenkirchen, K.; Mayer, K.; Moegel, P.; Motta, D.; Nisi, S.; Oehm, J.; Pandola, L.; Petricca, F.; Potzel, W.; Richter, H.; Schoenert, S.; Wallenius, M.; Wojcik, M.; Zanotti, L.
Date of Publication (YYYY-MM-DD):2005
Title of Journal:Physics Letters B
Journal Abbrev.:Phys.Lett.B
Issue / Number:616
Start Page:174
End Page:190
Audience:Not Specified
Intended Educational Use:No
Abstract / Description: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.
Classification / Thesaurus:Experimental Physics
Comment of the Author/Creator: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
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
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