SO(10)-inspired seesaw mechanism

被引:9
作者
Abud, M
Buccella, F
机构
[1] Univ Naples, Dipartimento Sci Fisiche, I-80126 Naples, Italy
[2] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy
[3] CERN, Div Theory, CH-1211 Geneva, Switzerland
[4] Univ Naples, Ist Fis Teor, I-80126 Naples, Italy
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2001年 / 16卷 / 04期
关键词
D O I
10.1142/S0217751X01003056
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We determine the nu (R) Majorana mass matrix from the experimental data on neutrino oscillations in the framework of a see-saw SO(10) model, where we impose the condition (M-R)(33) = 0 to avoid too large fine-tunings in the see-saw formula. We find a class of solutions with the two lowest neutrino masses almost degenerate and the scale of the matrix elements of M-R in the range 10(11)-10(12) GeV in agreement with Pati-Salam intermediate symmetry. We find also solutions with smaller neutrino masses, for which the scale of M-R depends on the solution to the "solar neutrino problem" and on the value of the component of nu (e) along the highest mass eigenstate, U-e3.
引用
收藏
页码:609 / 623
页数:15
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