Spectroscopy instead of scattering: particle experimentation in AdS spacetime

Understand

Particle experiments are difficult at weak coupling because interactions are rare and a huge number of collision attempts are needed to attain significant precision.

• One often hears that "one Higgs boson is produced in a billion of collisions at LHC." In this essay, we fantasize about possible advantages afforded in this regard by performing experiments in anti-de Sitter (AdS) spacetime instead of a usual collider in a nearly-flat spacetime.
• Being a perfectly resonant cavity, the AdS spacetime enhances all nonlinear interactions, which therefore produce effects of order one no matter how small the couplings are, provided that one waits long enough.
• These effects are encoded in spectroscopic data, namely, the fine splittings of the energy levels which would have been highly degenerate in AdS if no interactions were present.