Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis

Details Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis

2004-02-20

arxiv.org/abs/astro-ph/0402490v3

Phys.Lett. B625 (2005) 7-12

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures. We corrected the ionization energy-loss rate. As a result, the constraint on Li6 becomes milder by a facto

Scientific paper

10.1016/j.physletb.2005.08.045

We study the big-bang nucleosynthesis (BBN) scenario with late-decaying exotic particles with lifetime longer than $\sim 1$ sec. With a late-decaying particle in the early universe, predictions of the standard BBN scenario can be significantly altered. Therefore, we derive constraints on its primordial abundance. We pay particular attention to hadronic decay modes of such particles. We see that the non-thermal production process of D, ${\rm ^{3}He}$ and ${\rm ^6Li}$ provides a stringent upper bound on the primordial abundance oflate-decaying particles with hadronic branching ratio.

Affiliated with

Also associated with

No associations

Rating

Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-709085