2015/12/31 by H. Han, Huayong Han, Shaoming Wang +1 · 2 citations
Physics and Astronomy · #Context (archaeology) #Fermion #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quark #Scalar (mathematics) #Yukawa potential #hep-ex #hep-ph
paper · pdf · doi:10.1016/j.nuclphysb.2016.04.002
published as Nucl. Phys. B 907, 180 (2016) · v2: 6 pages, 2 figures; v3: 7 pages, typos corrected, discussions about pseudo-scalar explanation added; v4: journal version with text expanded and references added
arxiv created 2016/04/02 · openalex publication_date 2016/04/09 · arxiv updated 2016/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Inspired by the diphoton signal excess observed in the latest data of 13 TeV LHC, we consider either a 750 GeV real scalar or pseudo-scalar responsible for this anomaly. We propose a concrete vector-like quark model, in which the vector-like fermion pairs directly couple to this scalar via Yukawa interaction. For this setting the scalar is mainly produced via gluon fusion, then decays at the one-loop level to SM diboson channels gg,γγ,ZZ,WW. We show that for the vector-like fermion pairs with exotic electric charges, such model can account for the diphoton excess and is consistent with the data of 8 TeV LHC simultaneously in the context of perturbative analysis.