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| VOLUME 103 (2016) | ISSUE 9 | PAGE 635 |
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New Physics at 1 TeV?
S. I. Godunov+*, A. N. Rozanov×, M. I. Vysotsky+°∇ 1), E. V. Zhemchugov+∇ 1)
+Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia *Novosibirsk State University, 630090 Novosibirsk, Russia ×The Center for Particle Physics of Marseilles, CPPM-IN2P3-CNRS-AMU, F-13288, Marseille, France °Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia ∇Moscow Engineering Physics Institute, 115409 Moscow, Russia
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 orand they should have large electric charges in order to reproduce experimental data on σpp → SX • Br(S → γ γ). |