1998/01/09 by Vivek Agrawal, V. Agrawal, S. M. Barr +2 · 5 citations
Earth and Planetary Sciences · Physics and Astronomy · #Anthropic principle #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Earth Systems and Cosmic Evolution #Electroweak interaction #Electroweak scale #Grand Unified Theory #Particle physics #Physics #Planck scale #Quantum #Quantum chromodynamics #Quantum gravity #Quantum mechanics #Scale (ratio) #Supersymmetry #Symmetry breaking #Theoretical physics #Universe #hep-ph
paper · pdf · doi:10.1103/physrevlett.80.1822
published as Phys.Rev.Lett.80:1822-1825,1998 · 10 pages, 1 figure, to be published in Phys. Rev. Lett
arxiv created 1998/01/09 · openalex publication_date 1998/03/02 · arxiv updated 2011/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
One of the puzzles of the standard model is why the mass parameter \ensuremathμ2, which determines the weak interaction scale, is closer to the quantum chromodynamics scale than to the grand unification or Planck scales. We consider a novel approach to this problem, based upon the idea that \ensuremathμ2 takes different values in different domains of the Universe. The whole range of values for \ensuremathμ2, from +MP2 to \ensuremath-MP2, is explored, and it is found that only for values in a narrow window is life likely to be possible. The observed value of \ensuremathμ2 is fairly typical of the values in this window.