750 GeV Diphoton Signal from One-Family Walking Technipion

Abstract

The ATLAS and CMS groups have recently reported an excess at around 750 GeV with the local significance by about 3 sigma in the diphoton channel at the 13 TeV LHC. We give a possible explanation for the excess by a composite pseudo scalar $(P^0)$ predicted in the one-family model of walking technicolor.

4 pages; version to appear in MPLA

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• Big-Bang Nucleosynthesis
• Walking techni-pions at LHC
• Old Wine in a New Bottle: Technidilaton as the 125 GeV Higgs -- Dedicated to the late Professor Yoichiro Nambu

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