Baryon Synthesis

  • Gerhard Börner
Part of the Texts and Monographs in Physics book series (TMP)


One of the fundamental questions of cosmology is how the small baryon-asymmetry of

$$ {n_B}/s \simeq {10^{ - 10}} $$
that we observe in our present universe has been created. In classical cosmology — within the standard big-bang model — this number is imprinted on the universe as an initial condition — “Heaven-sent” and unexplainable. Another answer is given by the GUT theories of elementary particle interactions: the B-violating interactions — i.e. interactions that do not conserve the baryon number — in those theories can produce a small net baryon asymmetry in an expanding universe that was initially completely symmetric in baryons and antibaryons. The number n B/s turns out to be small, because the masses of the particles responsible for B-violating interactions are extremely large.


Higgs Boson Gauge Boson Early Universe Baryon Number Grand Unify Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • Gerhard Börner
    • 1
  1. 1.Max-Planck-Institut für Physik und AstrophysikInstitut für AstrophysikGarchingGermany

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