How precisely can we reduce the three-flavor neutrino oscillation to the two-flavor one only from δm122/δm132≲1/15? -: art. no. 033007

被引：2

作者：

Lim, CS ^{[1
]}

Ogure, K ^{[1
]}

Tsujimoto, H ^{[1
]}

机构：

[1] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.67.033007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive a reduction formula that expresses the survival rate for the three-flavor neutrino oscillation using the two-flavor one to next-to-leading order when there is one resonance due to the matter effect. We numerically find that the next-to-leading reduction formula is extremely accurate and the improvement is relevant for the precision test of solar neutrino oscillation and the indirect measurment of CP violation in the leptonic sector. We also derive a reduction formula, which is slightly different from that previously obtained, in the case when there are two resonances. We numerically verify that this reduction formula is quite accurate and is valid for a wider parameter region than are those previously obtained.

引用

页数：14