Contributions from SUSY-FCNC couplings to the interpretation of the HyperCP events for the decay Σ^+ \to p μ^+ μ^-

Abstract

The observation of three events for the decay ${\Sigma }^{+}\to p{\mu }^{+}{\mu }^{-}$ with a dimuon invariant mass of $214.3\pm 0.5$MeV by the HyperCP collaboration imply that a new particle X may be needed to explain the observed dimuon invariant mass distribution. We show that there are regions in the SUSY-FCNC parameter space where the $A_1^0$ in the NMSSM can be used to explain the HyperCP events without contradicting all the existing constraints from the measurements of the kaon decays, and the constraints from the $K^0-{\bar{K}}^0$ mixing are automatically satisfied once the constraints from kaon decays are satisfied.

18 pages, 7 figures

References in corpus (4)

• Has HyperCP Observed a Light Higgs Boson?
• Radiative quarkonium decays and the NMSSM Higgs interpretation of the HyperCP Sigma+ --> p mu+mu- events
• Light Higgs Production in Hyperon Decay
• More about sgoldstino interpretation of HyperCP events

Cited by in corpus (6)

• Studying ${\mathcal{B}}_1({\frac{1}{2}}^{+})\to {\mathcal{B}}_2({\frac{1}{2}}^{+}){\ell }^{+}{\ell }^{-}$ Semi-leptonic Weak Baryon Decays with the SU(3) Flavor Symmetry
• Rare Decays with a Light CP-Odd Higgs Boson in the NMSSM
• Sigma to p mu+ mu-: Standard Model or New Particle?
• Observation of the very rare ${\Sigma }^{+}\to p{\mu }^{+}{\mu }^{-}$ decay
• Implication of the HyperCP boson $X^0$ (214 MeV) in the flavour changing neutral current processes
• Testing the HyperCP anomaly at LHCb: evidence for the ${\Sigma }^{+}\to p{\mu }^{+}{\mu }^{-}$ decay