750 GeV diphoton excess confronted with a top-pion in the TTM model

Abstract

The latest LHC data suggest an intriguing excess at $m_{\gamma \gamma }=750$ GeV which apparently requires an explanation from the beyond standard model physics. In this note we explore the possibility for this signal to arise from a top-pion in the Top Triangle Moose model which can be viewed as a dimensional-deconstruction version of the top-color assisted technicolor model. We demonstrate that the observed excess can be accommodated by and has important implications for this interesting model.

Comments: 12 pages, 3 figures, Int. J. Mod. Phys. A (2016)