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New Physics at 1 TeV?

Abstract : If decays of a heavy particle S are responsible for the diphoton excess with invariant mass 750 GeV observed at the 13 TeV LHC run, it can be easily accomodated in the Standard Model. Two scenarios are considered: production in gluon fusion through a loop of heavy isosinglet quark(s) and production in photon fusion through a loop of heavy isosinglet leptons. In the second case many heavy leptons are needed or/and they should have large electric charges in order to reproduce experimental data on $\sigma(pp \to SX) \cdot \mathrm{Br}(S \to \gamma \gamma)$.
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Contributor : Danielle Cristofol <>
Submitted on : Wednesday, February 8, 2017 - 8:30:41 AM
Last modification on : Tuesday, March 30, 2021 - 3:18:19 AM

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S. I. Godunov, A. N. Rozanov, M. I. Vysotsky, E. V. Zhemchugov. New Physics at 1 TeV?. JPET Lett., Akademizdatcenter "Nauka", 2016, 103 (9), pp.557-562. ⟨10.1134/S0021364016090101⟩. ⟨in2p3-01461287⟩



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