Implications of Improved Upper Bounds on $|\Delta L|=2$ Processes

Abstract

We discuss implications of improved upper bounds on the $|\Delta L|=2$ processes (i) $K^{+}\to {\pi }^{-}{\mu }^{+}{\mu }^{+}$, from an experiment at BNL, and (ii) ${\mu }^{-}\to e^{+}$ conversion, from an experiment at PSI. In particular, we address the issue of constraints on neutrino masses and mixing, and on supersymmetric models with R-parity violation.

8 pages, Latex; published version with figs. added (Phys. Lett. B, in press)

References in corpus (2)

• Further Search for the Decay K^+ --> pi^+ nu nubar
• New limits on effective Majorana neutrino masses from rare kaon decays

Cited by in corpus (59)

• Neutrino-less Double Beta Decay and Particle Physics
• Theory of Neutrinos: A White Paper
• Double Beta Decay
• Charged Lepton Flavor Violation: An Experimenter's Guide
• COMET Phase-I Technical Design Report
• Fermion Masses and Mixing in Extended Technicolor Models
• Sterile neutrinos in lepton number and lepton flavor violating decays
• Bounds on heavy sterile neutrinos revisited
• Lepton flavor (universality) violation in rare kaon decays
• Probing Majorana neutrinos in rare K and D, D_s, B, B_c meson decays
• New measurement of the K+- --> pi+-mu+mu- decay
• Probing the Majorana neutrinos and their CP violation in decays of charged scalar mesons $\pi ,K,D,D_s,B,B_c$
• Sensitivity of Lepton Number Violating Meson Decays in Different Experiments
• Experiments with K-Meson Decays
• Oscillation of heavy sterile neutrino in decay of $B\to \mu e\pi$
• Sensitivity to Majorana neutrinos in $\Delta L=2$ decays of $B_c$ meson at LHCb
• CP violation in lepton number violating semihadronic decays of $K,D,D_s,B,B_c$
• Probing Majorana neutrinos in rare pi+ to e+ e+ mu- nu decays
• Searches for lepton number violating $K^{+}$ decays
• Prospects for Measurements with Strange Hadrons at LHCb
• Remarks on the lifetime of sterile neutrinos and the effect on detection of rare meson decays M+ -> M'- lepton+ lepton+
• CP violations in ${\pi }^{\pm }$ Meson Decay
• Searches for Lepton Number Violation and Resonances in $K^{\pm }\to \pi \mu \mu$ Decays
• Rare decays of B mesons via on-shell sterile neutrinos
• In-flight cLFV conversion: $e-\mu$, $e-\tau$ and $\mu -\tau$ in minimal extensions of the Standard Model with sterile fermions
• Rare meson decays with three pairs of quasi-degenerate heavy neutrinos
• Hadronic structure aspects of $K^{+}\to {\pi }^{-}+l_1^{+}+l_2^{+}$ decays
• On Sterile neutrino explanation of LSND and MiniBooNE anomalies
• Search for lepton number and flavour violation in $K^{+}$ and ${\pi }^0$ decays
• Lepton-number violating four-body decays of heavy mesons
• Baryon-Number-Violating Nucleon and Dinucleon Decays in a Model with Large Extra Dimensions
• Sensitivity limits on heavy-light mixing $|U_{\mu N}{|}^2$ from lepton number violating $B$ meson decays
• Double beta decay of sigma^- hyperons
• Sensitivity bounds on heavy neutrino mixing $|U_{\mu N}{|}^2$ and $|U_{\tau N}{|}^2$ from LHCb upgrade
• Probing $(g-2{)}_{\mu }$ at the LHC in the paradigm of R-parity violating MSSM
• Search for the Lepton-Number-Violating Decay ${\Xi }^{-}\to p{\mu }^{-}{\mu }^{-}$
• Search for lepton-number-violating signals in the charm sector
• Lepton number violation in $B_s$ meson decays induced by an on-shell Majorana neutrino
• Searches for lepton number violating $K^{+}\to {\pi }^{-}({\pi }^0)e^{+}{e}^{+}$ decays
• Exploring GeV-scale Majorana neutrinos in lepton-number-violating ${\Lambda }_b^0$ baryon decays
• Exploring CP-violation, via heavy neutrino oscillations, in rare B meson decays at Belle II
• Majorana Neutrino Masses from Neutrinoless Double-Beta Decays and Lepton-Number-Violating Meson Decays
• $\Delta L=2$ hyperon semileptonic decays
• Constraints on lepton number violating short-range interactions from $|\Delta L|=2$ processes
• Neutrino Masses and Mixing in Models with Large Extra Dimensions and Localized Fermions
• Testing the nature of neutrinos from four-body $\tau$ decays
• Probing sterile neutrino in $B$ ($D$) meson decays at Belle II (BESIII)
• Light sterile neutrinos and lepton-number-violating kaon decays in effective field theory
• Searching for lepton number violating $\Lambda$ baryon decays mediated by GeV-scale Majorana neutrino with LHCb
• The study of two quasi-degenerate heavy sterile neutrinos in rare meson decays
• R-Parity Conservation from a Top Down Perspective
• Is it still worth searching for lepton flavor violation in rare kaon decays?
• A search for the $K^{+}\to {\mu }^{-}\nu e^{+}{e}^{+}$ decay
• Hyperfine structure and $(e^{-},e^{+})$-pair annihilation in the muonium-positronium MuPs and positronium hydrides
• Search for R-Parity-Violation-Induced Charged Lepton Flavor Violation at Future Lepton Colliders
• Rare Kaon Decay Experiments at CERN
• Kaon experiments at CERN: NA48 and NA62
• New Physics Searches at Kaon and Hyperon Factories
• CP violation in $B_s$ decays mediated by two nearly-degenerate Majorana neutrinos