A Redetermination of the Neutrino Mass-Squared Difference in Trimaximal Mixing with Terrestrial Matter Effects

ePubs

The open archive for STFC research publications

Persistent URL	http://purl.org/net/epubs/work/29629
Record Status	Checked
Record Id	29629
Title	A Redetermination of the Neutrino Mass-Squared Difference in Trimaximal Mixing with Terrestrial Matter Effects
Contributors	PF Harrison, DH Perkins, W G Scott
Abstract	We re-fit for the neutrino mass-squared difference delta m squared in the threefold maximal (i.e. tri-maximal) mixing scenario using recent CHOOZ and SUPER-K data, taking account of matter effects in the Earth. While matter effects have little influence on reactor experiments and proposed long-baseline accelerator experiments with L equal to or less than 1000Km, they are highly significant for atmospheric experiments, suppressing naturally neutrino-electron mixing and enhancing neutrino-muon - neutrino-tauon mixing, so as to effectively remove the experimental distinction between threefold maximal and twofold maximal neutino-muon - neutrino-tauon mixing. Threefold maximal mixing is fully consistent with the CHOOZ and SUPER-K data, and the best-fit value for the neutrino mass-squared difference is delta m squared ~bar (0.98 +bar 0.30 over 0.23) x 10 to the minus three eV squared.
Organisation	CCLRC , PPD
Keywords
Funding Information
Related Research Object(s):
Licence Information:
Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Report	RAL Technical Reports RAL-TR-1999-026. 1999.		raltr-1999026.pdf	1999