Complementary signals of lepton flavor violation at a high-energy muon collider - INSPIRE

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Complementary signals of lepton flavor violation at a high-energy muon collider

Mar 16, 2022

41 pages

Published in:

JHEP 07 (2022) 036

Published: Jul 6, 2022

e-Print:

2203.08825 [hep-ph]

DOI:

10.1007/JHEP07(2022)036 (publication)

Experiments:

MUON-COLLIDER

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Abstract: (Springer)

A muon collider would be a powerful probe of flavor violation in new physics. There is a strong complementary case for collider measurements and precision low-energy probes of lepton flavor violation (as well as CP violation). We illustrate this by studying the collider reach in a supersymmetric scenario with flavor-violating slepton mixing. We find that the collider could discover sleptons and measure the slepton and neutralino masses with high precision, enabling event reconstruction that could cleanly separate flavor-violating new physics signals from Standard Model backgrounds. The discovery reach of a high-energy muon collider would cover a comparably large, and overlapping, range of parameter space to future μ → e conversion and electron EDM experiments, and unlike precision experiments could immediately shed light on the nature of new physics responsible for flavor violation. This complementarity strengthens the case that a muon collider could be an ideal energy-frontier laboratory in the search for physics beyond the Standard Model.

Lepton Flavour Violation (charged)
Supersymmetry
lepton: flavor: violation
flavor: violation: minimal
CP: violation
supersymmetry
minimal supersymmetric standard model
slepton: mixing
neutralino: mass
electron: electric moment

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