Experimental considerations motivated by the diphoton excess at the LHC
MetadataShow full item record
CitationAgrawal, Prateek, JiJi Fan, Ben Heidenreich, Matthew Reece, and Matthew Strassler. 2016. Experimental Considerations Motivated by the Diphoton Excess at the LHC. J. High Energ. Phys. doi:10.1007/jhep06(2016)082.
AbstractWe consider the immediate or near-term experimental opportunities offered by some scenarios that could explain the new diphoton excess at the LHC. If the excess is due to a new particle Xs at 750 GeV, additional new particles are required, providing further signals. If connected with naturalness, the Xs may be produced in top partner decays. Then a t 0 t¯0 signal, with t 0 → tXs and Xs → gg dominantly, might be discovered by reinterpreting 13 TeV SUSY searches in multijet events with low MET and/or a lepton. If Xs is a bound state of quirks, the signal events may be accompanied by an unusual number of soft tracks or soft jets. Other resonances including dilepton and photon+jet as well as dijet may lie at or above this mass, and signatures of hidden glueballs might also be observable. If the “photons” in the excess are actually long-lived particles decaying to photon pairs or to electron pairs, there are opportunities for detecting overlapping photons and/or unusual patterns of apparent photon-conversions in either Xs or 125 GeV Higgs decays. There is also the possibility of events with a hard “photon” recoiling against a narrow isolated HCAL-only “jet”, which, after the jet’s energy is corrected for its electromagnetic origin, would show a peak at 750 GeV.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:28335255
- FAS Scholarly Articles