EFFECTS OF NEUTRINO DEGENERACY ON THE PRIMORDIAL ABUNDANCES OF BE-9 AND B-11

被引：9

作者：

KIM, JB

LEE, HK

机构：

[1] Department of Physics, Hanyang University

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 448卷 / 02期

关键词：

EARLY UNIVERSE; ELEMENTARY PARTICLES; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; ABUNDANCES;

D O I：

10.1086/175982

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The primordial abundances of Be-9 and B-11 are calculated to investigate the effects of the lepton number asymmetry due to nonzero neutrino degeneracy. Within the permitted ranges of parameters obtained from the analyses of primordial abundances of light elements, the Be-9 abundance is found to be indistingishable from that of the standard big bang nucleosynthesis. However, the primordial B-11 abundance is found to be sensitive on the neutrino degeneracy.

引用

页码：510 / 513

页数：4

共 35 条

[1] NEW LIMITS ON THE VARIABILITY OF G FROM BIG-BANG NUCLEOSYNTHESIS [J].

ACCETTA, FS ;

KRAUSS, LM ;

ROMANELLI, P .

PHYSICS LETTERS B, 1990, 248 (1-2) :146-150

[2]

BOESGAARD AM, 1985, ANNU REV ASTRON ASTR, V23, P319

[3] BE-9(ALPHA, P)B-12 REACTION AND PRIMORDIAL NUCLEOSYNTHESIS [J].

BOYD, RN ;

KUBONO, S ;

IKEDA, N ;

TANAKA, MY ;

NOMURA, T ;

FUCHI, Y ;

KAWASHIMA, H ;

OHURA, M ;

ORIHARA, H ;

YUN, S ;

TOKYOKAWA, H ;

YOSOI, M ;

OHNUMA, H .

NUCLEAR PHYSICS A, 1992, 542 (01) :97-107

[4] CAN BE-9 PROVIDE A TEST OF COSMOLOGICAL THEORIES [J].

BOYD, RN ;

KAJINO, T .

ASTROPHYSICAL JOURNAL, 1989, 336 (02) :L55-L58

[5] MACHS PRINCIPLE AND A RELATIVISTIC THEORY OF GRAVITATION [J].

BRANS, C ;

DICKE, RH .

PHYSICAL REVIEW, 1961, 124 (03) :925-&

[6] CROSS-SECTIONS FOR H-3(LI-7, N0)9BE AND H-3(LI-7,NTOT) [J].

BRUNE, CR ;

KAVANAGH, RW ;

KELLOGG, SE ;

WANG, TR .

PHYSICAL REVIEW C, 1991, 43 (02) :875-882

[7] LIMITS ON THE VARIABILITY OF G USING BINARY-PULSAR DATA [J].

DAMOUR, T ;

GIBBONS, GW ;

TAYLOR, JH .

PHYSICAL REVIEW LETTERS, 1988, 61 (10) :1151-1154

[8] THE ABUNDANCE OF BORON IN 3 HALO STARS [J].

DUNCAN, DK ;

LAMBERT, DL ;

LEMKE, M .

ASTROPHYSICAL JOURNAL, 1992, 401 (02) :584-595

[9] 1ST DETECTION OF BERYLLIUM IN A VERY METAL POOR STAR - A TEST OF THE STANDARD BIG-BANG MODEL [J].

GILMORE, G ;

EDVARDSSON, B ;

NISSEN, PE .

ASTROPHYSICAL JOURNAL, 1991, 378 (01) :17-21

[10]

HIKASA K, 1992, PHYS REV D, P45

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