Nucleosynthesis constraints on a scale-dependent new intermediate range interaction

• Tipo: Artigo em Revista Científica Internacional
• Data: 1999

Autores

Bertolami, O (Autor) Outra; Nunes, FM (Autor) Outra

Revista

Título: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Vol. 452

Páginas: 108-114

ISSN: 0370-2693

Editora: Elsevier

Indexação

ISI Web of Knowledge - 17 Citações

Scopus - 16 Citações

Outras Informações

ID Authenticus: P-001-4M2

DOI: 10.1016/s0370-2693(99)00253-1

Abstract (EN): We derive constraints on the strength of a new intermediate range interaction that couples to baryon number from primordial nucleosynthesis yields. The nucleosysnthesis limits here used arise from matching observations and predictions of standard and inhomogeneous primordial scenarios. We show that the standard nucleosynthesis scenario is more restrictive (alpha(5) less than or similar to 0.2) when the range of the interaction is greater than about 1 m. We further discuss the implications of considering the scalar particle responsible for the new interaction as the main component of the dark matter in the galactic halo such that its decay can account for the ionization of hydrogen in the interstellar medium and the temperature of Lyman-alpha clouds.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7