Limits on cosmological variation of strong interaction and quark masses from big bang nucleosynthesis, cosmic, laboratory and Oklo data

Jan, 2002
10 pages
Published in:
  • Phys.Rev.D 65 (2002) 103503
e-Print:

Citations per year

2002200820142020202402468101214
Abstract:
Recent data on cosmological variation of the electromagnetic fine structure constant from distant quasar (QSO) absorption spectra have inspired a more general discussion of possible variation of other constants. We discuss variation of strong scale and quark masses. We derive the limits on their relative change from (i) primordial Big-Bang Nucleosynthesis (BBN): (ii) Oklo natural nuclear reactor, (iii) quasar absorption spectra, and (iv) laboratory measurements of hyperfine intervals.
Note:
  • 10 pages 2 figurs: second version have several references added and some new comments
  • 98.80.Cq
  • cosmological model
  • fundamental constant: time dependence
  • quantum chromodynamics: Lambda parameter
  • heavy quark
  • mass: strangeness
  • nucleus nucleus: nuclear reaction
  • quasar
  • spectrum: absorption
  • fundamental constant: hyperfine structure
Loading ...