Constraint on anomalous 4ν interaction

被引：21

作者：

Belotsky, KM ^{[1
]}

Sudarikov, AL ^{[1
]}

Khlopov, MY ^{[1
]}

机构：

[1] Russian Acad Sci, MV Keldysh Appl Math Inst, Moscow 125047, Russia

来源：

PHYSICS OF ATOMIC NUCLEI | 2001年 / 64卷 / 09期

关键词：

Elementary Particle; Dark Matter; Weak Interaction; Gauge Boson; Cosmological Scenario;

D O I：

10.1134/1.1409505

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：

The features of a hypothetical 4 interaction considered as the possible reason for massive-neutrino instability required in the cosmological scenario that involve neutrino dark matter ire discussed. New constraints on the 4 nu -interaction constant G chi are obtained: G chi < (15-42) G(F) for m<chi> > m(Z) (G(F) is the Fermi constant of weak interaction; m chi is the mass of the 4 nu -interaction gauge boson, also known as chi boson; and m(Z) is the Z-boson mass)and G chi < (2.8-5.6) G(F) for m<chi> < m(Z). These constraints virtually rule out the 4<nu> interaction as a possible version of solution to the cosmological neutrino-instability problem. (C) 2001 MAIK "Nauka/Interperiodica".

引用

页码：1637 / 1642

页数：6

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