Cosmological constraints on neutrino masses

被引：0

作者：

Melchiorri, Alessandro ^{[1
,2
]}

De Bernardis, Francesco ^{[1
,2
]}

Pagano, Luca ^{[1
,2
]}

Serra, Paolo ^{[1
,2
]}

机构：

[1] Univ Roma La Sapienza, Dept Phys, Ple Aldo Moro 2, I-00185 Rome, Italy

[2] Univ Roma La Sapienza, INFN, I-00185 Rome, Italy

来源：

IFAE 2007: ITALIAN MEETING ON HIGH ENERGY PHYSICS | 2008年

关键词：

D O I：

10.1007/978-88-470-0747-5_42

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：

Using recent cosmological data, we derive upper limits on the sum of neutrino masses of Sigma m nu < 0.17 eV at 95% c.l. We then constrain the hypothesis of a fourth, sterile, massive neutrino. For the 3 massless + 1 massive neutrino case we bound the mass of the sterile neutrino to m, < 0.26 eV at 95% c.l. These results exclude at high significance the sterile neutrino hypothesis as an explanation of the LSND anomaly.

引用

页码：265 / +

页数：3

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