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

Homiller, Samuel; Lu, Qianshu; Reece, Matthew

doi:10.1007/jhep07(2022)036

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

Journal Article · Wed Jul 06 00:00:00 EDT 2022 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep07(2022)036· OSTI ID:1976492

Homiller, Samuel ^[1];

^[1]; Reece, Matthew ^[1]

Harvard University, Cambridge, MA (United States)

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.

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Research Organization:: Harvard Univ., Cambridge, MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC); Alfred P. Sloan Foundation; National Aeronautics and Space Administration (NASA)

Grant/Contract Number:: SC0013607; G-2019-12504; 80NSSC20K0506

OSTI ID:: 1976492

Journal Information:: Journal of High Energy Physics (Online), Vol. 2022, Issue 7; ISSN 1029-8479

Publisher:: Springer NatureCopyright Statement

Country of Publication:: United States

Language:: English

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71 CLASSICAL AND QUANTUM MECHANICS
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Lepton flavour violation
charged
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Title: Complementary signals of lepton flavor violation at a high-energy muon collider

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