Darkonia at Colliders

Abstract

Dark matter may form bound states in a dark sector with an attractive force between two dark matter particles. Searches for dark matter at colliders can differ dramatically from routine searches if bound states, dubbed darkonia, are produced and decay into visible Standard-Model particles. In this work, we use three representative models with scalar, pseudo-scalar, and vector force carriers to map out the darkonium signatures at both high-energy and low-energy colliders. Some of the bound states can be stable due to generalized parity and charge-conjugation symmetries, while others decay into light dark-force carriers, which subsequently can decay at a displaced vertex. New signatures with a mix of missing energy and multiple di-lepton or di-jet vertices reconstructing intermediate darkonium resonances are within reach at the LHC and Belle II.

Correct the signs and factors of 2 in Eqs. (3.20), (A.6), and (A.8), and use a different (i) convention in Eq. (A.7) for the (F_P) model; 43 pages, 10 figures

References in corpus (35)

• Parton distributions for the LHC
• Modern Theory of Nuclear Forces
• A Theory of Dark Matter
• Secluded WIMP Dark Matter
• Cosmology and Astrophysics of Minimal Dark Matter
• Non-Perturbative Effect on Dark Matter Annihilation and Gamma Ray Signature from Galactic Center
• FASER's Physics Reach for Long-Lived Particles
• Serendipity in dark photon searches
• Decay and Detection of a Light Scalar Boson Mixing with the Higgs
• Emerging Jets
• Bound-state formation for thermal relic dark matter and unitarity
• Semi-visible Jets: Dark Matter Undercover at the LHC
• Model-independent Study of Magnetic Dipole Transitions in Quarkonium
• WIMPonium
• Weakly Interacting Stable Pions
• Probing dark sectors with long-lived particles at BELLE II
• Light inflaton after LHC8 and WMAP9 results
• Resonant Dark Matter
• Diphoton decays of stoponium at the Large Hadron Collider
• Colored Resonances at the Tevatron: Phenomenology and Discovery Potential in Multijets
• Leptophilic Dark Matter in Lepton Interactions at LEP and ILC
• Determining the CP nature of spin-0 mediators in associated production of dark matter and $t\bar{t}$ pairs
• The charm/bottom quark mass from heavy quarkonium at N${}^3$LO
• Probing the Dark Sector with Dark Matter Bound States
• Decoding the $B\to K\nu \nu$ excess at Belle II: kinematics, operators, and masses
• Gamma Lines without a Continuum: Thermal Models for the Fermi-LAT 130 GeV Gamma Line
• Analytic evaluation of the amplitudes for orthopositronium decay to three photons to one-loop order
• Higgs-boson visible and invisible constraints on hidden sectors
• Resonant scattering and recombination of pseudo-degenerate WIMPs
• Minimal Dark Matter bound states at future colliders
• Dark Matter Annihilation Decay at The LHC
• Broadening Dark Matter Searches at the LHC: Mono-X versus Darkonium Channels
• Excited bound states and their role in dark matter production
• Dark Matter from Electroweak Single Top Production
• Remarks on the Z' Drell-Yan cross section