K+ -> pi+ nu nu(bar) and FCNC from non-universal Z' bosons

Abstract

Motivated by the E787 and E949 result for K+ -> pi+ nu nu(bar) we examine the effects of a new non-universal right-handed Z' boson on flavor changing processes. We place bounds on the tree-level FCNC from K-K(bar) and B-B(bar) mixing as well as from the observed CP violation in kaon decay. We discuss the implications for K -> pi nu nu(bar), B -> X nu nu(bar) and B -> tau+ tau-. We find that existing bounds allow substantial enhancements in the K+ -> pi+ nu nu(bar) rate, particularly through a new one-loop Z' penguin operator.

Typos corrected, references added, version to appear in PRD

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Cited by in corpus (29)

• Family non-universal Z' models with protected flavor-changing interactions
• Gauging U(1) symmetries and the number of right-handed neutrinos
• B decays with $\tau$-leptons in non-universal left-right models
• Waiting for Precise Measurements of K^+->pi^+ nu nu and K_L->pi^0 nu nu
• Lepton universality violation and right-handed currents in $b\to c\tau \nu$
• Light Z' Bosons at the Tevatron
• $B_s-{\bar{B}}_s$ Mixing constraints on FCNC and a non-universal $Z^{\prime }$
• The Higgs Sector in a $U(1{)}^{\prime }$ Extension of the MSSM
• Z' Mediated Dark Matter Models for the Galactic Center Gamma-Ray Excess
• Enhanced KL to pi0 nu nubar from Direct CP Violation in B to K pi with Four Generations
• Flavor Changing Effects in Family Nonuniversal Z' Models
• Dirac Neutrino Dark Matter
• D0 Dimuon Asymmetry in $B_s-{\bar{B}}_s$ Mixing and Constraints on New Physics
• FCNC in the 3-3-1 model with right-handed neutrinos
• Constraints on New Physics from $K\to \pi \nu \bar{\nu }$
• $R_{K^{(\ast )}}^{\nu }$ and non-standard neutrino interactions
• Implications of the non-universal Z boson in FCNC mediated rare decays
• $D-\bar{D}$ mixing constraints on FCNC with a non-universal $Z^{\prime }$
• Study of $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ Decays in the Family Non-universal $Z^{\prime }$ Models
• Constraints on $Z^{\prime }$ Boson within Minimal Flavor Violation
• Ansatz for small FCNC with a non-universal $Z^{\prime }$
• Constraints on new physics from $K\to \pi \nu \bar{\nu }$
• Effect of FCNC mediated Z boson on lepton flavor violating decays
• Flavor changing Z' couplings at the LHC
• Probing New Physics in Charm Couplings with FCNC
• LHC constraints on $W^{\prime },Z^{\prime }$ that couple mainly to third generation fermions
• Tau lepton charge asymmetry and new physics at the LHC
• New Signatures For Top In Hadron Collider
• Searching for New Physics in $D^0\to {\mu }^{+}{\mu }^{-},e^{+}{e}^{-},{\mu }^{\pm }{e}^{\mp }$ at BES and/or Super Charm-Tau Factory