Benchmarking Light New Physics at Forward Search Experiments
Probing dark sectors with neutrino physics and low-energy accelerators
Exploring dark matter at the LHC and future colliders beyond monojet paradigm
| Full text | |
| Author(s): |
Fichet, Sylvain
Total Authors: 1
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| Document type: | Journal article |
| Source: | Journal of High Energy Physics; v. N/A, n. 4, p. 25-pg., 2017-04-14. |
| Abstract | |
We investigate the possibilities of searching for a self-conjugate polarizable particle in the self-interactions of light. We first observe that polarizability can arise either from the exchange of mediator states or as a consequence of the inner structure of the particle. To exemplify this second possibility we calculate the polarizability of a neutral bosonic open string, and find it is described only by dimension-8 operators. Focussing on the spin-0 case, we calculate the light-by-light scattering amplitudes induced by the dimension-6 and 8 polarizability operators. Performing a simulation of exclusive diphoton production with proton tagging at the LHC, we find that the imprint of the polarizable dark particle can be potentially detected at 5 sigma significance for mass and cutoff reaching values above the TeV scale, for root s = 13 TeV and 300 fb(-1) of integrated luminosity. If the polarizable dark particle is stable, it can be a dark matter candidate, in which case we argue this exclusive diphoton search may complement the existing LHC searches for polarizable dark matter. (AU) | |
| FAPESP's process: | 14/21477-2 - Particle physics at the TeV scale and beyond: models and interpretations |
| Grantee: | Sylvain Pierre Joseph Fichet |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |