Varying alpha, thresholds and fermion masses
نویسندگان
چکیده
منابع مشابه
Varying alpha, thresholds and extra dimensions
We consider variations of coupling strengths and mass ratios in and beyond the Standard Model, in the light of various mechanisms of mass generation. In four-dimensional unified models, heavy quark and superparticle thresholds and the electron mass can completely alter the (testable) relation between ∆ lnα and ∆ lnμ, where μ ≡ mp/me. In extra-dimensional models where a compactification scale be...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2004
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2003.10.047