Chiral Quirkonium Decays

Abstract

We calculate the two-body decay rates of "quirkonium" states formed from quirks that acquire mass solely through electroweak symmetry breaking. We consider SU(N)_ic infracolor with two flavors of quirks transforming under the electroweak group (but not QCD) of the Standard Model. In one case, the quirks are in a chiral representation of the electroweak group, while in the other case, a vector-like representation. The differences in the dominant decay channels between "chiral quirkonia" versus "vector-like quirkonia" are striking. Several chiral quirkonia states can decay into the unique two-body resonance channels WH, ZH, t\bar{t}, t\bar{b} / b\bar{t}, and gamma+H, which never dominate for vector-like quirkonia. Additionally, the channels WW, WZ, ZZ, and W+gamma, are shared among both chiral and vector-like quirkonia. Resonances of dileptons or light quarks (dijets) can dominate for some vector-like quirkonia states throughout their mass range, while these modes never dominate for chiral quirkonia unless the decays into pairs of gauge or Higgs bosons are kinematically forbidden.

18 pages, 21 figures

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• Accidentally Asymmetric Dark Matter
• Quirks at the Tevatron and Beyond
• Light Hidden Mesons through the Z Portal
• Glueballs in a Thermal Squeezeout Model
• Constraining Quirky Tracks with Conventional Searches
• Hypercharged Naturalness
• Effective Theories of Dark Mesons with Custodial Symmetry
• The quirk signal at FASER and FASER 2
• Displaced Vertices from Hidden Glue
• Discovering Quirks through Timing at FASER and Future Forward Experiments at the LHC
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• Uncovering quirk signal via energy loss inside tracker
• A Solution to the mu/Bmu Problem in Gauge Mediation with Hidden Gauge Symmetry
• Constraints on 750 GeV colorless Q-onia from running couplings
• Visible Collider Signals of Natural Quirks
• Quirk SUEP
• Review of Neutral Naturalness
• Hyper Stealth Dark Matter and Long-Lived Particles
• LHC Test of CDF $Wjj$ anomaly