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- Title
COSMOLOGICAL PROMISING PARAMETERS OF STAU IN THE MINIMAL SUPERSYMMETRIC STANDARD MODEL.
- Authors
Jittoh, Toshifumi; Kohri, Kazunori; Koike, Masafumi; Sato, Joe; Shimomura, Takashi; Yamanaka, Masato
- Abstract
We find that we can account for the possible descrepancy of the primordial abundance of 7Li between the observation and the prediction of the Big-Bang Nucleosynthesis in a scenario of the Big-Bang Nucleosynthesis with the Minimal Supersymmetric Standard Model. This scenario is consistent with a stau-neutralino coannihilation scenario to explain the relic abundance of dark matter. The solution to the discrepancy is given by taking the values of parameters; the mass of the neutralino as 300 GeV and the mass difference between the stau and the neutralino as (100 – 120) MeV.
- Subjects
SUPERSYMMETRY; HADRON colliders; NUCLEOSYNTHESIS; STANDARD model (Nuclear physics); INTERNAL conversion (Nuclear physics)
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2009, Vol 24, Issue 18/19, p3501
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X09047119