Cosmological variation of the deuteron binding energy, strong interaction, and quark masses from big bang nucleosynthesis

2004 ◽  
Vol 69 (6) ◽  
Author(s):  
V. F. Dmitriev ◽  
V. V. Flambaum ◽  
J. K. Webb
Keyword(s):  
Binding Energy ◽  
Strong Interaction ◽  
Big Bang ◽  
Deuteron Binding Energy ◽  
Big Bang Nucleosynthesis ◽  
Quark Masses

Reinvestigation of Quark Masses Variations on Big Bang Nucleosynthesis

2012 ◽  
Vol 54 (1-4) ◽  
pp. 495-499
Author(s):  
Myung-Ki Cheoun ◽  
C. Y. Ryu ◽  
Toshitaka Kajino ◽  
Motohiko Kusakabe ◽  
Grant J. Mathews
Keyword(s):  
Big Bang ◽  
Big Bang Nucleosynthesis ◽  
Quark Masses

scholarly journals The effects of coupling variations on BBN

2009 ◽  
Vol 5 (H15) ◽  
pp. 305-305
Author(s):  
Keith A. Olive
Keyword(s):  
Binding Energy ◽  
Mass Difference ◽  
Big Bang ◽  
Neutron Lifetime ◽  
Big Bang Nucleosynthesis ◽  
Fundamental Parameters ◽  
Proton Mass ◽  
Unified Theories

AbstractThe effect of variations of the fundamental nuclear parameters on big-bang nucleosynthesis are modeled and discussed in detail taking into account the interrelations between the fundamental parameters arising in unified theories. Considering only 4He, strong constraints on the variation of the neutron lifetime, neutron-proton mass difference are set. We show that a variation of the deuterium binding energy is able to reconcile the 7Li abundance deduced from the WMAP analysis with its spectroscopically determined value while maintaining concordance with D and 4He.

scholarly journals Time-dependent quark masses and big bang nucleosynthesis revisited

2011 ◽  
Vol 84 (4) ◽  
Author(s):  
Myung-Ki Cheoun ◽  
Toshitaka Kajino ◽  
Motohiko Kusakabe ◽  
Grant J. Mathews
Keyword(s):  
Big Bang ◽  
Time Dependent ◽  
Big Bang Nucleosynthesis ◽  
Quark Masses

Refined big bang nucleosynthesis constraints onΩBandNν

1994 ◽  
Vol 72 (21) ◽  
pp. 3309-3312 ◽  
Author(s):  
Peter J. Kernan ◽  
Lawrence M. Krauss
Keyword(s):  
Big Bang ◽  
Big Bang Nucleosynthesis

scholarly journals Searching for space-time variation of the fine structure constant using QSO spectra: overview and future prospects

2009 ◽  
Vol 5 (H15) ◽  
pp. 304-304
Author(s):  
J. C. Berengut ◽  
V. A. Dzuba ◽  
V. V. Flambaum ◽  
J. A. King ◽  
M. G. Kozlov ◽  
...  
Keyword(s):  
Nuclear Reactor ◽  
Structure Constant ◽  
Big Bang ◽  
The Other ◽  
Fine Structure Constant ◽  
Spatial And Temporal Variation ◽  
Fundamental Constants ◽  
Future Prospects ◽  
Big Bang Nucleosynthesis ◽  
The Universe

Current theories that seek to unify gravity with the other fundamental interactions suggest that spatial and temporal variation of fundamental constants is a possibility, or even a necessity, in an expanding Universe. Several studies have tried to probe the values of constants at earlier stages in the evolution of the Universe, using tools such as big-bang nucleosynthesis, the Oklo natural nuclear reactor, quasar absorption spectra, and atomic clocks (see, e.g. Flambaum & Berengut (2009)).

Big Bang nucleosynthesis as a probe of varying fundamental “constants”

2007 ◽  
Author(s):  
Thomas Dent ◽  
Steffen Stern ◽  
Christof Wetterich ◽  
Arttu Rajantie ◽  
Carlo Contaldi ◽  
...  
Keyword(s):  
Big Bang ◽  
Fundamental Constants ◽  
Big Bang Nucleosynthesis

scholarly journals Big-bang nucleosynthesis in a Brans-Dicke cosmology with a varying $\mathsf{\Lambda}$ term related to WMAP

2006 ◽  
Vol 448 (1) ◽  
pp. 23-27 ◽  
Author(s):  
R. Nakamura ◽  
M. Hashimoto ◽  
S. Gamow ◽  
K. Arai
Keyword(s):  
Big Bang ◽  
Big Bang Nucleosynthesis
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