Effects of R Parity Breaking in the Higgs Sector.pdf

KA-TP-7-1995 hep-ph/9508355 August 1995 EFFECTS OF R PARITY BREAKING IN THE HIGGS SECTOR 5 J. ROSIEK 9 9 1 Institut f¨ur Theoretische Physik, Universit¨at Karlsruhe g u We discuss possible manifestations of R parity breaking in the Higgs sector. We A illustrate this with three examples: high-energy mono-photon production at LEP, 3 calculation of limits on associated production of invisibly decaying Higgs bosons 2 and discussion of non-standard scalar decays in the MSSM with broken R parity. 1 v 1 Introduction 5 5 3 In analysing the supersymmetric theories one usually assumes the conservation 8 1 0 of a discrete symmetry, called R parity , distinguishing matter fields from 5 their superpartners. The R parity violation could lead to phenomenologically 9 2 / interesting effects, such as mixing of gauginos with leptons and Higgs bosons h p with sleptons3,4 (and hence breaking of the lepton number), non-zero neutrino - 5,4 6 0 7 p masses and their decays , Z decays to single charginos or neutralinos , e existence of a massless Goldst