Nonequilibrium neutrino oscillations in the early Universe with an inverted neutrino-mass hierarchy

被引：20

作者：

Kostelecky, VA ^{[1
]}

Samuel, S ^{[1
]}

机构：

[1] CUNY CITY COLL, DEPT PHYS, NEW YORK, NY 10031 USA

来源：

PHYSICS LETTERS B | 1996年 / 385卷 / 1-4期

关键词：

D O I：

10.1016/0370-2693(96)00856-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The annihilation of electron-positron pairs around one second after the big bang distorts the Fermi-Dirac spectrum of neutrino energies. We determine the distortions assuming neutrino mixing with an inverted neutrino-mass hierarchy. Nonequilibrium thermodynamics, the Boltzmann equation, and numerical integration are used to achieve the results. The various types of neutrino behavior are established as a function of masses and mixing angles.

引用

收藏

页码：159 / 168

页数：10

相关论文

共 23 条

[1] AN INVERTED NEUTRINO MASS HIERARCHY FOR HOT DARK-MATTER AND THE SOLAR-NEUTRINO DEFICIT [J].

CALDWELL, DO ;

MOHAPATRA, RN .

PHYSICS LETTERS B, 1995, 354 (3-4) :371-375

[2] NONEQUILIBRIUM NEUTRINO STATISTICAL-MECHANICS IN THE EXPANDING UNIVERSE [J].

DODELSON, S ;

TURNER, MS .

PHYSICAL REVIEW D, 1992, 46 (08) :3372-3387

[3]

DOLGOV AD, 1981, SOV J NUCL PHYS+, V33, P700

[4] NONEQUILIBRIUM EFFECT OF THE NEUTRINO DISTRIBUTION ON PRIMORDIAL HELIUM SYNTHESIS [J].

DOLGOV, AD ;

FUKUGITA, M .

PHYSICAL REVIEW D, 1992, 46 (12) :5378-5382

[5] REFRACTION AND OSCILLATIONS OF NEUTRINOS IN THE EARLY UNIVERSE [J].

ENQVIST, K ;

KAINULAINEN, K ;

MAALAMPI, J .

NUCLEAR PHYSICS B, 1991, 349 (03) :754-790

[6] STRINGENT COSMOLOGICAL BOUNDS ON INERT NEUTRINO MIXING [J].

ENQVIST, K ;

KAINULAINEN, K ;

THOMSON, M .

NUCLEAR PHYSICS B, 1992, 373 (02) :498-528

[7] EFFECT OF NEUTRINO HEATING ON PRIMORDIAL NUCLEOSYNTHESIS [J].

FIELDS, BD ;

DODELSON, S ;

TURNER, MS .

PHYSICAL REVIEW D, 1993, 47 (10) :4309-4314

[8] DO EXPERIMENTS AND ASTROPHYSICAL CONSIDERATIONS SUGGEST AN INVERTED NEUTRINO MASS HIERARCHY [J].

FULLER, GM ;

PRIMACK, JR ;

QIAN, YZ .

PHYSICAL REVIEW D, 1995, 52 (02) :1288-1291

[9]

Kolb EW, 1990, The Early Universe, V69, P1, DOI DOI 10.1201/9780429492860

[10] NEUTRINO OSCILLATIONS IN THE EARLY UNIVERSE WITH NONEQUILIBRIUM NEUTRINO DISTRIBUTIONS [J].

KOSTELECKY, VA ;

SAMUEL, S .

PHYSICAL REVIEW D, 1995, 52 (06) :3184-3201