NEW CONSTRAINTS ON NEUTRINO OSCILLATIONS IN VACUUM AS A POSSIBLE SOLUTION OF THE SOLAR-NEUTRINO PROBLEM

被引：64

作者：

KRASTEV, PI

PETCOV, ST

机构：

[1] SCUOLA INT SUPER STUDI AVANZATI,I-34013 TRIESTE,ITALY

[2] IST NAZL FIS NUCL,I-34013 TRIESTE,ITALY

[3] BULGARIAN ACAD SCI,INST NUCL RES & NUCL ENERGY,BU-1784 SOFIA,BULGARIA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.72.1960

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Two-neutrino oscillations in vacuum are studied as a possible solution of the solar neutrino problem. New constraints on the parameter sin(2)2theta, characterizing the mixing of the electron neutrino with another active or sterile neutrino, as well as on the mass-squared difference DELTAm2 of their massive neutrino components, are derived using the latest results from the four solar neutrino experiments. Oscillations into a sterile neutrino are ruled out at 98% C.L. by the observed mean event rates even if one includes the uncertainties of the standard solar model predictions in the analysis.

引用

页码：1960 / 1963

页数：4

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