Holographic technidilaton at 125 GeV
Abstract
We find that a holographic walking technicolor model has a limit (“conformal limit”) where the technidilaton (TD) becomes a massless Nambu-Goldstone boson of the scale symmetry with its nonzero finite decay constant Fϕ≠0, which naturally realizes a light TD, say at 125 GeV, near the limit. In such a light TD case, we find that Fϕ is uniquely determined by the technipion decay constant Fπ independently of the holographic parameters: Fϕ/Fπ≃2NTF, with NTF being the number of technifermions. We show that the holographic TD is consistent with a new boson at 125 GeV recently discovered at the LHC.
- Publication:
-
Physical Review D
- Pub Date:
- December 2012
- DOI:
- 10.1103/PhysRevD.86.115004
- arXiv:
- arXiv:1209.2017
- Bibcode:
- 2012PhRvD..86k5004M
- Keywords:
-
- 12.60.Nz;
- 14.80.Tt;
- Technicolor models;
- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- E-Print:
- 3 eps figures, 15 pages, latex