Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/12518
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | González García, Ma. Concepción | cat |
dc.contributor.author | Maltoni, Michele | cat |
dc.contributor.author | Smirnov, Alexei Yu | cat |
dc.date.accessioned | 2010-05-06T12:37:36Z | - |
dc.date.available | 2010-05-06T12:37:36Z | - |
dc.date.issued | 2004 | cat |
dc.identifier.issn | 0556-2821 | cat |
dc.identifier.uri | http://hdl.handle.net/2445/12518 | - |
dc.description.abstract | The measurement of the deviation of the 2-3 leptonic mixing from maximal, D_23 = 1/2 - sin^2(theta_23), is one of the key issues for understanding the origin of the neutrino masses and mixing. In the three-neutrino context we study the dependence of various observables in the atmospheric neutrinos on D_23. We perform a global three-neutrino analysis of the atmospheric and reactor neutrino data taking into account the effects of both the oscillations driven by the "solar" parameters (Delta_m_21^2 and theta_12) and the 1-3 mixing. The departure from the one-dominant mass scale approximation results into the shift of the 2-3 mixing from maximal by Delta_sin^2(theta_23) ~ 0.04, so that D_23 ~ 0.04 +- 0.07 (1 sigma). Though value of the shift is not statistically significant, the tendency is robust. The shift is induced by the excess of the e-like events in the sub-GeV sample. We show that future large scale water Cherenkov detectors can determine D_23 with accuracy of a few percent, comparable with the sensitivity of future long baseline experiments. Moreover, the atmospheric neutrinos will provide unique information on the sign of the deviation (octant of theta_23). | - |
dc.format.extent | 10 p. | cat |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.70.093005 | cat |
dc.relation.ispartof | Physical Review D, 2004, vol. 70, núm. 9, p. 093005-1-093005-10 | cat |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevD.70.093005 | - |
dc.rights | (c) The American Physical Society, 2004 | eng |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Partícules (Física nuclear) | cat |
dc.subject.classification | Astrofísica nuclear | cat |
dc.subject.classification | Astronomia | cat |
dc.subject.other | Particles (Nuclear physics) | eng |
dc.subject.other | Nuclear astrophysics | eng |
dc.subject.other | Astronomia | eng |
dc.title | Measuring the deviation of the 2-3 lepton mixing from maximal with atmospheric neutrinos | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 551572 | cat |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
551572.pdf | 1.01 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.