A γγ collider for the 750 GeV resonant state
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
759
Pages
166-170
Date Issued
2016
Author(s)
Abstract
Recent data collected by ATLAS and CMS at 13 TeV collision energy of the LHC indicate the existence of a new resonant state φ with a mass of 750 GeV decaying into two photons γγ. The properties of φ should be studied further at the LHC and also future colliders. Since only φ→γγ decay channel has been measured, one of the best ways to extract more information about φ is to use a γγ collider to produce φ at the resonant energy. In this work we show how a γγ collider helps to verify the existence of φ and to provide some of the most important information about the properties of φ, such as branching fractions of φ→V1V2. Here Vi can be γ, Z, or W±. We also show that by studying angular distributions of the final γ's in γγ→φ→γγ, one can obtain crucial information about whether this state is a spin-0 or a spin-2 state.
SDGs
Type
journal article