2015/12/31 by P. S. Bhupal Dev, Rabindra N. Mohapatra, Yongchao Zhang
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep02(2016)186
published as JHEP02, 186 (2016) · 18 pages, 6 figures, 1 table; section on high-scale validity and some discussions and references added, version to appear in JHEP
openalex publication_date 2016/02/01 · arxiv created 2016/02/15 · arxiv updated 2016/03/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
We present a possible interpretation of the recent diphoton excess reported by the √ s=13 TeV LHC data in quark seesaw left-right models with vectorlike fermions proposed to solve the strong CP problem without the axion. The gauge singlet real scalar field responsible for the mass of the vectorlike fermions has the right production cross section and diphoton branching ratio to be identifiable with the reported excess at around 750 GeV diphoton invariant mass. Various ways to test this hypothesis as more data accumulates at the LHC are proposed.