Big bang nucleosynthesis in the Brans-Dicke cosmology with a decaying Λ term

M. Hashimoto; R. Nakamura; S. Gamow; K. Arai

doi:10.1016/j.nuclphysa.2005.05.193

Big bang nucleosynthesis in the Brans-Dicke cosmology with a decaying Λ term

M. Hashimoto, R. Nakamura, S. Gamow, K. Arai

Experimental Particle Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate primordial nucleosynthesis in a Brans-Dicke model with a decaying Λ term using the Monte-Carlo method and likelihood analysis. The produced abundances of ⁴He and D are consistent with the observations when the baryon to photon ratio η₁₀ = 5.47 - 6.64, which is in agreement with the value deduced from WMAP.

Original language	English
Pages (from-to)	779-782
Number of pages	4
Journal	Nuclear Physics A
Volume	758
Issue number	1-4 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nuclphysa.2005.05.193
Publication status	Published - Jul 25 2005

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2005.05.193

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abstract = "We investigate primordial nucleosynthesis in a Brans-Dicke model with a decaying Λ term using the Monte-Carlo method and likelihood analysis. The produced abundances of 4He and D are consistent with the observations when the baryon to photon ratio η10 = 5.47 - 6.64, which is in agreement with the value deduced from WMAP.",

author = "M. Hashimoto and R. Nakamura and S. Gamow and K. Arai",

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AU - Arai, K.

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AB - We investigate primordial nucleosynthesis in a Brans-Dicke model with a decaying Λ term using the Monte-Carlo method and likelihood analysis. The produced abundances of 4He and D are consistent with the observations when the baryon to photon ratio η10 = 5.47 - 6.64, which is in agreement with the value deduced from WMAP.

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Big bang nucleosynthesis in the Brans-Dicke cosmology with a decaying Λ term

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