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Status of four-neutrino mass schemes: A global and unified approach to current neutrino oscillation data
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Status of four-neutrino mass schemes: A global and unified approach to current neutrino oscillation data
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| dc.contributor.author | Maltoni, Michele | |
| dc.contributor.author | Schwetz, Thomas | |
| dc.contributor.author | Furtado Valle, José Wagner | |
| dc.date.accessioned | 2015-10-22T10:23:00Z | |
| dc.date.available | 2015-10-22T10:23:00Z | |
| dc.date.issued | 2002 | |
| dc.identifier.citation | Maltoni, Michele Schwetz, Thomas Furtado Valle, José Wagner 2002 Status of four-neutrino mass schemes: A global and unified approach to current neutrino oscillation data Physical Review D 65 9 093004 | |
| dc.identifier.uri | http://hdl.handle.net/10550/47846 | |
| dc.description.abstract | We present a unified global analysis of neutrino oscillation data within the framework of the four-neutrino mass schemes (3+1) and (2+2). We include all data from solar and atmospheric neutrino experiments, as well as information from short-baseline experiments including LSND. If we combine only solar and atmospheric neutrino data, (3+1) schemes are clearly preferred, whereas short-baseline data in combination with atmospheric data prefers (2+2) models. When combining all data in a global analysis the (3+1) mass scheme gives a slightly better fit than the (2+2) case, though all four-neutrino schemes are presently acceptable. The LSND result disfavors the three-active neutrino scenario with only Δm2sol and Δm2atm at 99.9% CL with respect to the four-neutrino best fit model. We perform a detailed analysis of the goodness of fit to identify which sub-set of the data is in disagreement with the best fit solution in a given mass scheme. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D, 2002, vol. 65, num. 9, p. 093004 | |
| dc.subject | Física | |
| dc.title | Status of four-neutrino mass schemes: A global and unified approach to current neutrino oscillation data | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-10-22T10:23:00Z | |
| dc.identifier.doi | 10.1103/PhysRevD.65.093004 | |
| dc.identifier.idgrec | 031777 | |
| dc.rights.accessRights | open access | es_ES |
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