The new physics case for beam-dump experiments with accelerated muon beams

Oct 24, 2023
22 pages
Published in:
  • JHEP 05 (2024) 283
  • Published: May 24, 2024
e-Print:
Report number:
  • MIT-CTP 5606

Citations per year

202320242025281
Abstract: (Springer)
As the field examines a future muon collider as a possible successor to the LHC, we must consider how to fully utilize not only the high-energy particle collisions, but also any lower-energy staging facilities necessary in the R&D process. An economical and efficient possibility is to use the accelerated muon beam from either the full experiment or from cooling and acceleration tests in beam-dump experiments. Beam-dump experiments are complementary to the main collider as they achieve sensitivity to very small couplings with minimal instrumentation. We demonstrate the utility of muon beam-dump experiments for new physics searches at energies from 10 GeV to 5 TeV. We find that, even at low energies like those accessible at staging or demonstrator facilities, it is possible to probe new regions of parameter space for a variety of generic BSM models, including muonphilic, leptophilic, Lμ_{μ} − Lτ_{τ}, and dark photon scenarios. Such experiments could therefore provide opportunities for discovery of new physics well before the completion of the full multi-TeV collider.
Note:
  • 22 pages and 10 figures + 11 pages and 10 figures
  • New Gauge Interactions
  • Other Weak Scale BSM Models
  • Specific BSM Phenomenology
  • Theories of Flavour
  • muon: beam
  • muon: storage ring
  • energy: low
  • new physics
  • beam dump
  • acceleration