Techni-dilaton at 125 GeV

Abstract

Walking technicolor predicts a light composite scalar, techni-dilaton, arising as a pseudo Nambu-Goldstone boson for the approximate scale symmetry spontaneously broken by techni-fermion condensation. We show that a light techni-dilaton with mass of around 125 GeV can explain presently observed excesses particularly in the di-photon decay channel at LHC.

Comments: 5 pages, 4 eps figures, latex; some references and footnotes added; version to appear in PRD