Abstract
We show that the photon-photon fusion process contributes significantly to the pair production of doubly charged Higgs bosons at the LHC at a level comparable to the Drell-Yan production. We reinterpret the ATLAS lower limit of 570 GeV (420 GeV) on the mass of () arising from an triplet (singlet) scalar by including the photon-initiated process, and we derive a new lower limit of 748 GeV (570 GeV), assuming that decays into 100% of the time. We have also shown that the discovery reach for () is 846 GeV (783 GeV) with luminosity at the 13 TeV LHC. We derive a somewhat more stringent limit on the mass when the doubly charged scalar arises from higher-dimensional representations of .
4 More- Received 5 January 2017
DOI:https://doi.org/10.1103/PhysRevD.95.055020
© 2017 American Physical Society