2016/01/05 by Yu-Jie Zhang, Zhang, Yu-Jie, Bin-Bin Zhou +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.1602.05539
arxiv created 2016/01/05 · arxiv updated 2016/02/18
Recently, the CMS and ATLAS collaborations have reported a diphoton peak at 750 GeV in the RunII of LHC at 13 TeV. We assume that the heavy fourth generation quark doublet z,~y with 380 GeV mass, and the width of z,t is much less b quark. Then we show that the contributions of the (z z+y y)/√(2) bound state ηzy(1S) to the diphoton measurements through σ(pp→ ηzy(1s)→ γγ) are 5.6+5.6-2.8 \rm fb at √ S=13 TeV. They are constant with the 750 GeV diphoton excess measured by the CMS ant ATLAS collaborations.