Particle physics catalysis of thermal big bang nucleosynthesis.

@article{Pospelov2007ParticlePC,
  title={Particle physics catalysis of thermal big bang nucleosynthesis.},
  author={Maxim Pospelov},
  journal={Physical review letters},
  year={2007},
  volume={98 23},
  pages={
          231301
        }
}
  • M. Pospelov
  • Published 19 May 2006
  • Physics, Medicine
  • Physical review letters
We point out that the existence of metastable, tau>10(3) s, negatively charged electroweak-scale particles (X-) alters the predictions for lithium and other primordial elemental abundances for A>4 via the formation of bound states with nuclei during big bang nucleosynthesis. In particular, we show that the bound states of X- with helium, formed at temperatures of about T=10(8) K, lead to the catalytic enhancement of 6Li production, which is 8 orders of magnitude more efficient than the standard… 

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