Lepton-Number Violating Decays of Heavy Mesons

Abstract

The experimental observation of lepton-number violating processes would unambiguously indicate the Majorana nature of neutrinos. Various $\Delta L$ = 2 processes for pseudoscalar meson $M_1$ decays to another pseudoscalar meson $M_2$ and two charged leptons ${\ell }_1$, ${\ell }_2$ ($M_1^{+}\to {\ell }_1^{+}{\ell }_2^{+}{M}_2^{-}$) have been studied extensively. Extending the existing literature on the studies of these kinds of processes, we consider the rare decays of heavy mesons to a vector meson or a pseudoscalar meson. These processes have not been searched for experimentally, while they may have sizable decay rates. We calculate their branching fractions and propose to search for these decay modes in the current and forthcoming experiments, in particular at the LHCb.

to be published in EJPC

References in corpus (16)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• The Search for Heavy Majorana Neutrinos
• Measurement of the Total Active 8B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity
• The B Meson Decay Constant from Unquenched Lattice QCD
• Progress in the physics of massive neutrinos
• Improved Measurement of cal{B}(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_{D^+}
• Measurement of the Double Beta Decay Half-life of 150-Nd and Search for Neutrinoless Decay Modes with the NEMO-3 Detector
• Measurement of Charm Production Cross Sections in e+e- Annihilation at Energies between 3.97 and 4.26 GeV
• Majorana Neutrinos and Same-Sign Dilepton Production at LHC and in Rare Meson Decays
• Relativistic treatment of the decay constants of light and heavy mesons
• Upper Bounds on Lepton-number Violating Processes
• K-meson neutrinoless double muon decay as a probe of neutrino masses and mixings
• Lattice Calculation of Heavy-Light Decay Constants with Two Flavors of Dynamical Quarks
• Neutrino oscillation experiments and limits on lepton-number and lepton-flavor violating processes
• Search for Rare and Forbidden Decays D^+ --> h^pm e^mp e^+

Cited by in corpus (27)

• The Physics of the B Factories
• Precision Tau Physics
• Searches for Majorana neutrinos in B- decays
• Effective Majorana mass matrix from tau and pseudoscalar meson lepton number violating decays
• Lepton number violation in top quark and neutral B meson decays
• Sensitivity to Majorana neutrinos in $\Delta L=2$ decays of $B_c$ meson at LHCb
• Search for Lepton-number-violating B+->D-l+l'+ Decays
• Lepton number violating four-body tau lepton decays
• Searching for a Sterile Neutrino in Tau Decays at B-factories
• Search for lepton-number violating processes in B+ -> h- l+ l+ decays
• Study Majorana Neutrino Contribution to B-meson Semi-leptonic Rare Decays
• Bounding resonant Majorana neutrinos from four-body B and D decays
• Lepton-number violating four-body decays of heavy mesons
• 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
• Exploring GeV-scale Majorana neutrinos in lepton-number-violating ${\Lambda }_b^0$ baryon decays
• Majorana Neutrino Masses from Neutrinoless Double-Beta Decays and Lepton-Number-Violating Meson Decays
• Constraints on lepton number violating short-range interactions from $|\Delta L|=2$ processes
• Testing the nature of neutrinos from four-body $\tau$ decays
• Four-body decays of $B$ meson with lepton number violation
• Angular and polarization observables for Majorana-mediated B decays with effective interactions
• Majorana neutrinos with effective interactions in B decays
• The study of two quasi-degenerate heavy sterile neutrinos in rare meson decays
• Study Standard Model and Majorana Neutrino Contributions to $B^{+}\to K^{(\ast )\pm }{\mu }^{+}{\mu }^{\mp }$
• CP violation with GeV-scale Majorana neutrino in ${\Lambda }_b\to ({\Lambda }_c^{+},p^{+}){\pi }^{+}{\mu }^{-}{\mu }^{-}$ decays
• Experimental constraints from flavour changing processes and physics beyond the Standard Model
• Sterile neutrinos in ${\Lambda }_b^0\to ({\Lambda }_c^{+},p^{+}){\ell }_1^{-}{\ell }_2^{-}{\ell }_3^{+}\nu$ decays