New nucleosynthesis constraint on the variation of G -: art. no. 171301

被引：148

作者：

Copi, CJ ^{[1
]}

Davis, AN

Krauss, LM

机构：

[1] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA

[2] Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.92.171301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Big bang nucleosynthesis can provide, via constraints on the expansion rate at that time, limits on possible variations in Newton's constant, G. The original analyses were performed before an independent measurement of the baryon-to-photon ratio from the cosmic microwave background was available. Combining this with recent measurements of the primordial deuterium abundance in quasar absorption systems now allows one to derive a new tighter constraint on G without recourse to considerations of helium or lithium abundances. We find that, compared to today's value, G(0), G(BBN)/G(0)=1.01(-0.16)(+0.20) at the 68% confidence level.

引用

页码：171301 / 1

页数：3

共 27 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] A compilation of charged-particle induced thermonuclear reaction rates [J].

Angulo, C ;

Arnould, M ;

Rayet, M ;

Descouvemont, P ;

Baye, D ;

Leclercq-Willain, C ;

Coc, A ;

Barhoumi, S ;

Aguer, P ;

Rolfs, C ;

Kunz, R ;

Hammer, JW ;

Mayer, A ;

Paradellis, T ;

Kossionides, S ;

Chronidou, C ;

Spyrou, K ;

Degl'Innocenti, S ;

Fiorentini, G ;

Ricci, B ;

Zavatarelli, S ;

Providencia, C ;

Wolters, H ;

Soares, J ;

Grama, C ;

Rahighi, J ;

Shotter, A ;

Rachti, ML .

NUCLEAR PHYSICS A, 1999, 656 (01) :3-183

[3]

[Anonymous], 1937, Nature, DOI DOI 10.1038/139323A0

[4]

BRONNIKOV KA, 2002, GRAV COSMOL S, P18

[5]

BRONNIKOV KA, GRQC0208028

[6] Big bang nucleosynthesis predictions for precision cosmology [J].

Burles, S ;

Nollett, KM ;

Turner, MS .

ASTROPHYSICAL JOURNAL, 2001, 552 (01) :L1-L5

[7]

BURLES S, 2002, PHYS REV D, V63

[8]

COC A, ASTROPH0401008

[9] Primordial nucleosynthesis in light of WMAP [J].

Cyburt, RH ;

Fields, BD ;

Olive, KA .

PHYSICS LETTERS B, 2003, 567 (3-4) :227-234

[10] The NACRE thermonuclear reaction compilation and big bang nucleosynthesis [J].

Cyburt, RH ;

Fields, BD ;

Olive, KA .

NEW ASTRONOMY, 2001, 6 (04) :215-238

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