Probing charged lepton flavor violation with a positron beam at CEBAF (JLAB)

Abstract

The addition of a high intensity 11 GeV polarized positron beam at the Continuous Electron Beam Accelerator Facility (CEBAF) at JLAB would allow for a search of Charged Lepton Flavor Violation (CLFV) via the process $e^{+}N\to {\mu }^{+}X$. The proposed Solenoidal Large Intensity Detector (SoLID) spectrometer, in the configuration with muon chambers, would be ideal for such CLFV searches. Various new physics scenarios, including the phenomenologically convenient Leptoquark (LQ) framework, predict CLFV rates that are within reach of current or planned experiments. A positron beam with instantaneous luminosity, $\mathcal{L}\sim 10^{38}$ cm${}^{-2}$s${}^{-1}$, could improve on existing HERA limits by two or three orders of magnitude. The availability of positron beam polarization would also allow for distentangling CLFV effects mediated by left-handed vs. right-handed LQs.

arXiv comment6 pages, 6 figures, references added. arXiv admin note: substantial text overlap with arXiv:2007.15081

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Cited by in corpus (1)

• Lepton-Flavor-Violating ALPs at the Electron-Ion Collider: A Golden Opportunity