REFINED BIG-BANG NUCLEOSYNTHESIS CONSTRAINTS ON OMEGA-B AND NV

被引：93

作者：

KERNAN, PJ ^{[1
]}

KRAUSS, LM ^{[1
]}

机构：

[1] CASE WESTERN RESERVE UNIV,DEPT ASTRON,CLEVELAND,OH 44106

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.72.3309

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We include correlations between elemental abundances in a Monte Carlo statistical analysis of big bang nucleosynthesis (BBN) predictions, which, along with updated reaction rates and an improved BBN code, lead to tightened constraints on OMEGA(B) and N(v). Observational upper limits on the respective primordial He-4 and D+He-3 fractions of 24% (by mass) and 10(-4) lead to the limits 0.0097h-2 less-than-or-equal-to OMEGA(B) less-than-or-equal-to 0.011h-2 and N(v) less-than-or-equal-to 3.04. The former argues against purely baryonic galactic halo dark matter, while the latter could put qualitatively new constraints on neutrinos and new physics. Systematic uncertainties in the inferred primordial abundances of He-4 and D+He-3 are required to relax these constraints.

引用

页码：3309 / 3312

页数：4

共 25 条

[1] PRIMORDIAL LITHIUM AND THE STANDARD MODEL(S)
DELIYANNIS, CP
DEMARQUE, P
KAWALER, SD
KRAUSS, LM
ROMANELLI, P
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (14) : 1583 - 1586
[2] PRIMORDIAL NUCLEOSYNTHESIS INCLUDING RADIATIVE, COULOMB, AND FINITE-TEMPERATURE CORRECTIONS TO WEAK RATES
DICUS, DA
KOLB, EW
GLEESON, AM
SUDARSHAN, ECG
TEPLITZ, VL
TURNER, MS
[J]. PHYSICAL REVIEW D, 1982, 26 (10): : 2694 - 2706
[3] STERILE NEUTRINOS AS DARK-MATTER
DODELSON, S
WIDROW, LM
[J]. PHYSICAL REVIEW LETTERS, 1994, 72 (01) : 17 - 20
[4] NONEQUILIBRIUM NEUTRINO STATISTICAL-MECHANICS IN THE EXPANDING UNIVERSE
DODELSON, S
TURNER, MS
[J]. PHYSICAL REVIEW D, 1992, 46 (08): : 3372 - 3387
[5] EFFECT OF NEUTRINO HEATING ON PRIMORDIAL NUCLEOSYNTHESIS
FIELDS, BD
DODELSON, S
TURNER, MS
[J]. PHYSICAL REVIEW D, 1993, 47 (10): : 4309 - 4314
[6] NEW COSMOLOGICAL LIMIT ON NEUTRINO MASS
FULLER, GM
MALANEY, RA
[J]. PHYSICAL REVIEW D, 1991, 43 (10): : 3136 - 3139
[7] JEDAMZIK K, 1994, ASTROPH9312066 REP
[8] KAWANO L, 1992, 9204A REP
[9] KAWANO L, 1988, FERMILABPUB8834A REP
[10] KAWASAKI M, 1993, OSUTA593 REP

← 1 2 3 →