Complementary Signals of Lepton Flavor Violation at a High-Energy Muon Collider

Abstract

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 $\mu \to e$ 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.

arXiv comment24 pages + appendices, 12 figures. Version published in JHEP

References in corpus (73)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Asymptotic formulae for likelihood-based tests of new physics
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Theories with Gauge-Mediated Supersymmetry Breaking
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• Lepton-Flavor Violation via Right-Handed Neutrino Yukawa Couplings in Supersymmetric Standard Model
• General Gauge Mediation
• Detailed calculation of lepton flavor violating muon-electron conversion rate for various nuclei
• Mass Matrix Models
• Should Squarks Be Degenerate?
• Flavor Physics Constraints for Physics Beyond the Standard Model
• Combined explanations of $(g-2{)}_{\mu ,e}$ and implications for a large muon EDM
• Neutrino Mass Anarchy
• Anatomy and Phenomenology of FCNC and CPV Effects in SUSY Theories
• The $\mu$-Problem in Theories with Gauge-Mediated Supersymmetry Breaking
• Supersymmetry-Breaking Loops from Analytic Continuation into Superspace
• Gauged $L_{\mu }-L_{\tau }$ with Large Muon Anomalous Magnetic Moment and the Bimaximal Mixing of Neutrinos
• Testing Supersymmetry with Lepton Flavor Violating tau and mu decays
• Electric Dipole Moments in the MSSM Reloaded
• Vector boson fusion at multi-TeV muon colliders
• High Energy Leptonic Collisions and Electroweak Parton Distribution Functions
• Muon Colliders: Opening New Horizons for Particle Physics
• Notes on SUSY and R-Symmetry Breaking in Wess-Zumino Models
• Electroweak Couplings of the Higgs Boson at a Multi-TeV Muon Collider
• Fusing Vectors into Scalars at High Energy Lepton Colliders
• Probing Lepton Flavor Violation at Future Colliders
• WIMPs at High Energy Muon Colliders
• A Guaranteed Discovery at Future Muon Colliders
• (Extra)Ordinary Gauge Mediation
• EDM Signatures of PeV-scale Superpartners
• Electroweak Splitting Functions and High Energy Showering
• A superspace module for the FeynRules package
• $\mu -e$ conversion in nuclei within the CMSSM seesaw: universality versus non-universality
• Probing Supersymmetric Model with Heavy Sfermions Using Leptonic Flavor and CP Violations
• Measuring the quartic Higgs self-coupling at a multi-TeV muon collider
• Interpreting the Electron EDM Constraint
• Sleptonarium (Constraints on the CP and Flavour Pattern of Scalar Lepton Masses)
• Natural mu and Bmu in gauge mediation
• Hunting wino and higgsino dark matter at the muon collider with disappearing tracks
• Novel proposal for a low emittace muon beam using positron beam on target
• Low Energy Probes of PeV Scale Sfermions
• Quark and Gluon Contents of a Lepton at High Energies
• The Effective Vector Boson Approximation in High-Energy Muon Collisions
• Heavy Higgs Bosons in 2HDM at a Muon Collider
• Searching for Leptoquarks at Future Muon Colliders
• A No-Lose Theorem for Discovering the New Physics of $(g-2{)}_{\mu }$ at Muon Colliders
• A New Approach to mu-Bmu
• Solving the Supersymmetric CP Problem with Abelian Horizontal Symmetries
• Obscure Higgs boson at Colliders
• Probing the muon g-2 anomaly with the Higgs boson at a Muon Collider
• Probing electroweak phase transition with multi-TeV muon colliders and gravitational waves
• General Messenger Gauge Mediation
• Probing new electroweak states via precision measurements at the LHC and future colliders
• Radiative Return for Heavy Higgs Boson at a Muon Collider
• Systematically Testing Singlet Models for $(g-2{)}_{\mu }$
• Learning from Radiation at a Very High Energy Lepton Collider
• Probing the $R_{K^{(\ast )}}$ Anomaly at a Muon Collider
• Testing leptogenesis at the LHC and future muon colliders: a $Z^{\prime }$ scenario
• Search for flavor lepton number violation in slepton decays at LEP2 and NLC
• On The Feasibility of a Pulsed 14 TeV c.m.e. Muon Collider in the LHC Tunnel
• Supersymmetry Breaking and Gauge Mediation
• The New Flavor of Higgsed Gauge Mediation
• Physics performances for Scalar Electron, Scalar Muon and Scalar Neutrino searches at 3 TeV and 1.4 TeV at CLIC
• Charged lepton flavor violation in light of the muon magnetic moment anomaly and colliders
• Di-Higgs and tri-Higgs boson signals of muon $g-2$ at a muon collider
• Sparticle Masses in Higgsed Gauge Mediation
• Measuring a Light Neutralino Mass at the ILC: Testing the MSSM Neutralino Cold Dark Matter Model
• The Muon Collider as a $H/A$ factory
• Lepton flavour violation in the MSSM: exact diagonalization vs mass expansion
• Search for lepton-flavor-violating ALPs at a future muon collider and utilization of polarization-induced effects
• Measurement of Higgs boson self-couplings through $2\to 3$ vector bosons scattering in future muon colliders
• Impact of Future Lepton Flavor Violation Measurements in the Minimal Supersymmetric Standard Model
• Comments on Gaugino Screening

Cited by in corpus (3)

• Unraveling the Scotogenic Model at Muon Collider
• Lepton portal dark matter at muon colliders: Total rates and generic features for phenomenologically viable scenarios
• Multi Higgs production via photon fusion at future multi-TeV muon colliders