A γγ collider for the 750 GeV resonant state
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 bee...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-08-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316302039 |
| Summary: | 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. |
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| ISSN: | 0370-2693 1873-2445 |