Status of three-neutrino oscillation parameters, circa 2013

被引:333
作者
Capozzi, F. [1 ,2 ]
Fogli, G. L. [1 ,2 ]
Lisi, E. [2 ]
Marrone, A. [1 ,2 ]
Montanino, D. [3 ,4 ]
Palazzo, A. [5 ]
机构
[1] Dipartimento Interateneo Fis Michelangelo Merlin, Via Amendola 173, I-70126 Bari, Italy
[2] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[3] Dipartimento Matemat & Fis Ennio De Giorgi, I-73100 Lecce, Italy
[4] Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy
[5] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany
来源
PHYSICAL REVIEW D | 2014年 / 89卷 / 09期
关键词
NEUTRINO; SIMULATION;
D O I
10.1103/PhysRevD.89.093018
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The standard three-neutrino (3v) oscillation framework is being increasingly refined by results coming from different sets of experiments, using neutrinos from solar, atmospheric, accelerator and reactor sources. At present, each of the known oscillation parameters [the two squared mass gaps (8m(2), triangle m(2) _ and the three mixing angles d. 12;. 13;. 23 is dominantly determined by a single class of experiments. Conversely, the unknown parameters (the mass hierarchy, the. 23 octant and the CP- violating phase d) can currently be constrained only through a combined analysis of various (eventually all) classes of experiments. In the light of recent new results coming from reactor and accelerator experiments, and of their interplay with solar and atmospheric data, we update the estimated Ns ranges of the known 3. parameters and revisit the status of the unknown ones. Concerning the hierarchy, no significant difference emerges between normal and inverted mass ordering. A slight overall preference is found for. 23 in the first octant and for nonzero CP violation with sin d < 0; however, for both parameters, such preference exceeds 1s only for normal hierarchy. We also discuss the correlations and stability of the oscillation parameters within different combinations of data sets.
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页数:9
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