2024-03-29T02:32:22Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/206092019-11-15T08:28:57Zcom_10261_49com_10261_4col_10261_175
Updated global fit to three neutrino mixing: status of the hints of theta13 > 0
González García, M.ª Concepción
Maltoni, Michele
Salvado, Jordi
Neutrino oscillations
Solar and atmospheric neutrinos
19 pages, 9 figures.
We present an up-to-date global analysis of solar, atmospheric, reactor and accelerator neutrino data in the framework of three-neutrino oscillations. We discuss in detail the statistical significance of the observed "hint" of non-zero theta13 in the solar sector at the light of the latest experimental advances, such as the Borexino spectral data, the lower value of Gallium rate recently measured in SAGE, and the low energy threshold analysis of the combined SNO phase I and phase II. We also study the robustness of the results under changes of the inputs such as the choice of solar model fluxes and a possible modification of the Gallium capture cross-section as proposed by SAGE. In the atmospheric sector we focus on the latest results for nu_e appearance from MINOS, and we discuss their impact on the determination of theta13. Finally, we combine all the data into a global analysis and determine the presently allowed ranges of masses and mixing.
This work is supported by Spanish MICINN grants 2007-66665-C02-01, FPA-2009-08958
and FPA-2009-09017 and consolider-ingenio 2010 grant CSD-2008-0037, by CUR Gener-
alitat de Catalunya grant 2009SGR502, by Comunidad Autonoma de Madrid through the HEPHACOS project P-ESP-00346, by USA-NSF grant PHY-0653342 and by EU grant
EURONU.
Peer reviewed
2010-02-02T13:46:56Z
2010-02-02T13:46:56Z
2010-02-02T13:46:56Z
artículo
http://purl.org/coar/resource_type/c_6501
http://hdl.handle.net/10261/20609
en
http://arxiv.org/abs/1001.4524
open
772545 bytes
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