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Abstract
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 m_H ~ m^{1/(1+gamma*)} and F ~ m^{\eta_F(gamma*)} for the decay constants, thereby generalizing our results from a previous paper to the entire spectrum. We derive the scaling law m_H \~m^{1/(1+gamma*)} using the Hellmann-Feynman theorem, and thus provide a derivation which does not rely on renormalization group arguments. Using the new results we reiterate, on the phenomenologically important, S-parameter. Finally, we discuss how spectral representations can be used to relate the mass and decay constant trajectories.
| Original language | English |
|---|---|
| Pages (from-to) | 217–220 |
| Number of pages | 4 |
| Journal | Physics Letters B |
| Volume | 700 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 13 Jun 2011 |
Keywords / Materials (for Non-textual outputs)
- hep-ph
- hep-lat
- hep-th
- Conformal window
- Critical exponents
- 4D conformal gauge theories
- Hadronic observables
- Lattice Monte Carlo simulations
- Exact beta function
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Dive into the research topics of 'Scaling relations for the entire spectrum in mass-deformed conformal gauge theories'. Together they form a unique fingerprint.Projects
- 1 Finished
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Particle Theory at the Tait Institute
Ball, R. (Principal Investigator), Berera, A. (Co-investigator), Boyle, P. (Co-investigator), Del Debbio, L. (Co-investigator), Figueroa-O'Farrill, J. (Co-investigator), Gardi, E. (Co-investigator), Horsley, R. (Co-investigator), Kennedy, A. (Co-investigator), Kenway, R. (Co-investigator), Pendleton, B. (Co-investigator) & Simon Soler, J. (Co-investigator)
1/10/11 → 30/09/15
Project: Research
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