Parameter limits for neutrino oscillation with decoherence in KamLAND

被引：32
|
作者：
Balieiro Gomes, G. [1 ]
Guzzo, M. M. [1 ]
de Holanda, P. C. [1 ]
Oliveira, R. L. N. [1 ,2 ]
机构：
[1] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, Rua Sergio Buarque de Holanda 777, BR-13083970 Campinas, SP, Brazil
[2] Univ Fed Abc, Santo Andre, SP, Brazil
来源：
PHYSICAL REVIEW D | 2017年 / 95卷 / 11期
基金：
巴西圣保罗研究基金会;
关键词：
DYNAMICAL SEMIGROUPS; DISSIPATION;
D O I：
10.1103/PhysRevD.95.113005
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the framework of open quantum systems, we analyze data from KamLAND by using a model that considers neutrino oscillation in a three-family approximation with the inclusion of the decoherence effect. Using chi(2) test, we find new limits for the decoherence parameter, which we call gamma, considering the most recent data by KamLAND. Assuming an energy dependence of the type gamma=gamma(0) (E/E-0)(n), at a 95% C.L., the limits found are 3.7 x 10(-24) GeV for n=-1, 6.8 x 10(-22) GeV for n=0, and 1.5 x 10(-19) GeV for n=1 on the energy dependence.
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页数：7
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