Big-bang nucleosynthesis limit on the neutral fermion decays into neutrinos

被引：20

作者：

Kusakabe, Motohiko ^{[1
,2
]}

Balantekin, A. B. ^{[3
,4
]}

Kajino, Toshitaka ^{[4
,5
]}

Pehlivan, Y. ^{[4
,6
]}

机构：

[1] Korea Aerosp Univ, Sch Liberal Arts & Sci, Goyang 412791, South Korea

[2] Soongsil Univ, Dept Phys, Seoul 156743, South Korea

[3] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[4] Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[5] Univ Tokyo, Grad Sch Sci, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan

[6] Mimar Sinan Fine Arts Univ, TR-34380 Istanbul, Turkey

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 08期

基金：

美国国家科学基金会;

关键词：

PROBE WMAP OBSERVATIONS; PRIMORDIAL ABUNDANCE; MAGNETIC-MOMENT; UNIVERSE; LITHIUM; CONSTRAINTS; BARYONS; TIME;

D O I：

10.1103/PhysRevD.87.085045

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the primordial helium abundance, an upper limit to the magnetic moments for Dirac neutrinos had been provided by imposing restrictions on the number of the additional helicity states. Considering nonthermal photons produced in the decay of the heavy sterile mass eigenstates due to the neutrino magnetic moment, we explore the constraints imposed by the observed abundances of all the light elements produced during the big-bang nucleosynthesis.

引用

页数：7

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