Electroweak nature of new states via a di-photon resonance: SU(2)L or just U(1)Y?

Jose Miguel No
Phys. Rev. D 94, 035020 – Published 22 August 2016

Abstract

The existence of a 750 GeV di-photon spin-0 resonance S would imply the additional presence of new particles beyond the Standard Model, coupling directly to S and electromagnetically charged. For an SU(2)L singlet S, we explore the possibility of probing the SU(2)L and U(1)Y quantum numbers of the new states at the LHC by measuring and constraining the WW, Zγ, and ZZ decays of S. We obtain robust prospects on the required LHC integrated luminosity to discover the new decay modes of S and discuss the implications of these measurements for probing the electroweak nature of the new states. We also discuss the impact of S mixing with the SM Higgs in such probes.

  • Figure
  • Figure
  • Received 24 May 2016

DOI:https://doi.org/10.1103/PhysRevD.94.035020

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Jose Miguel No

  • Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, United Kingdom

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Issue

Vol. 94, Iss. 3 — 1 August 2016

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