NEW COSMOLOGICAL LIMIT ON NEUTRINO MASS

被引：27

作者：

FULLER, GM ^{[1
]}

MALANEY, RA ^{[1
]}

机构：

[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB,INST GEOPHYS & PLANETARY PHYS,LIVERMORE,CA 94550

来源：

PHYSICAL REVIEW D | 1991年 / 43卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.43.3136

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that considerations of the equilibration of right- and left-handed neutrino seas in the early Universe and the well-known He-4 constraint on the number of relativistic degrees of freedom extant at the nucleosynthesis epoch lead to a new limit on the Dirac neutrino mass of m-mu <<300 keV. This constraint would apply to any neutrino so long as it had a purely Dirac mass and a life-time exceeding the nucleosynthesis time scale.

引用

页码：3136 / 3139

页数：4

共 39 条

[1] BOUNDS ON STERILE NEUTRINOS FROM NUCLEOSYNTHESIS [J].

BARBIERI, R ;

DOLGOV, A .

PHYSICS LETTERS B, 1990, 237 (3-4) :440-445

[2]

BOND JR, 1980, PHYS REV LETT, V45, P1980, DOI 10.1103/PhysRevLett.45.1980

[3] UPPER LIMIT ON NEUTRINO REST MASS [J].

COWSIK, R ;

MCCLELLAND, J .

PHYSICAL REVIEW LETTERS, 1972, 29 (10) :669-+

[4] LIMITS ON RADIATIVE DECAY OF NEUTRINOS [J].

COWSIK, R .

PHYSICAL REVIEW LETTERS, 1977, 39 (13) :784-787

[5]

DICUS D, 1977, PHYS REV LETT, V39, P169

[6] COSMOLOGICAL IMPLICATIONS OF MASSIVE, UNSTABLE NEUTRINOS [J].

DICUS, DA ;

KOLB, EW ;

TEPLITZ, VL .

ASTROPHYSICAL JOURNAL, 1978, 221 (01) :327-341

[7] QUARK-HADRON PHASE-TRANSITION IN THE EARLY UNIVERSE - ISOTHERMAL BARYON-NUMBER FLUCTUATIONS AND PRIMORDIAL NUCLEOSYNTHESIS [J].

FULLER, GM ;

MATHEWS, GJ ;

ALCOCK, CR .

PHYSICAL REVIEW D, 1988, 37 (06) :1380-1400

[8] MASSIVE DIRAC NEUTRINOS AND THE SN1987A SIGNAL [J].

GANDHI, R ;

BURROWS, A .

PHYSICS LETTERS B, 1990, 246 (1-2) :149-155

[9]

GELMINI G, 1982, PHYS LETT B, V99, P411

[10] UNCONVENTIONAL MODEL OF NEUTRINO MASSES [J].

GEORGI, HM ;

GLASHOW, SL ;

NUSSINOV, S .

NUCLEAR PHYSICS B, 1981, 193 (02) :297-316

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