کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8192131 1528870 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Scaling relations for the entire spectrum in mass-deformed conformal gauge theories
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Scaling relations for the entire spectrum in mass-deformed conformal gauge theories
چکیده انگلیسی
We consider mass-deformed conformal gauge theories (mCGT) and investigate the scaling behaviour of hadronic observables as a function of the fermion mass. Applying renormalization group arguments directly to matrix elements, we find mH∼m1/(1+γ⁎) and F∼mηF(γ⁎) for given ηF(γ⁎), for the hadronic masses and the decay constants respectively, thereby generalizing our results from a previous paper to the entire spectrum. Applying the Hellmann-Feynman theorem to the trace anomaly we obtain the hadron mass scaling independent of renormalization group arguments. From the trace anomaly we obtain a relation reminiscent of the Gell-Mann-Oakes-Renner relation in QCD. Using the new results we discuss the scaling of the S-parameter inside the conformal window. Finally, we discuss how spectral representations can be used to relate the mass and decay constant trajectories.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 700, Issues 3–4, 13 June 2011, Pages 217-220
نویسندگان
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