2019/08/31 by Iryna Boiarska, Kyrylo Bondarenko, Alexey Boyarsky +3 · 1 citation
Computer Science · Physics and Astronomy · #Boson #Computational Physics and Python Applications #Higgs boson #Higgs mechanism #Higgs sector #Large Hadron Collider #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Quartic function #Scalar (mathematics) #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep05(2020)049
published as JHEP 05 (2020) 049 · Journal version
openalex created_date 2019/08/22 · openalex publication_date 2020/05/11 · arxiv created 2020/06/06 · arxiv updated 2020/06/09 · openalex updated_date 2026/08/06
A bstract The most general renormalizable interaction between the Higgs sector and a new gauge-singlet scalar S is governed by two interaction terms: cubic and quartic. The quartic term is only loosely constrained by invisible Higgs decays and given current experimental limits about 10% of all Higgs bosons at the LHC can be converted to new scalars with masses up to m Higgs / 2. By including this production channel, one significantly extends the reach of the LHC-based Intensity Frontier experiments. We analyze the sensitivity of the FASER experiment to this model and discuss modest changes in the FASER 2 design that would allow exploring an order-of-magnitude wider part of the Higgs portal’s parameter space.