Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP05(2011)075
Keywords
Solar and Atmospheric Neutrinos; Neutrino Physics; Beyond Standard Model
Categories
Funding
- Spanish MICINN [2007-66665-C02-01, FPA-2009-08958, FPA-2009-09017]
- consolider-ingenio [CSD-2008-0037]
- CUR Generalitat de Catalunya [2009SGR502]
- Comunidad Autonoma de Madrid through the HEPHACOS [S2009/ESP-1473]
- USA-NSF [PHY-0969739]
- EU [EURONU]
- Division Of Physics
- Direct For Mathematical & Physical Scien [969739] Funding Source: National Science Foundation
- ICREA Funding Source: Custom
Ask authors/readers for more resources
We quantify our current knowledge of the size and flavor structure of the matter effects in the evolution of atmospheric and long-baseline neutrinos based solely on the analysis of the corresponding neutrino data. To this aim we generalize the matter potential of the Standard Model by rescaling its strength, rotating it away from the e e sector, and rephasing it with respect to the vacuum term. This phenomenological parametrization can be easily translated in terms of non-standard neutrino interactions in matter. We show that in the most general case, the strength of the potential cannot be determined solely by atmospheric and long-baseline data. However its flavor composition is very much constrained and the present determination of the neutrino masses and mixing is robust under its presence. We also present an update of the constraints arising from this analysis in the particular case in which no potential is present in the e mu and e tau sectors. Finally we quantify to what degree in this scenario it is possible to alleviate the tension between the oscillation results for neutrinos and antineutrinos in the MINOS experiment and show the relevance of the high energy part of the spectrum measured at MINOS.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available