Supersymmetric Particle Production at HERA
نویسندگان
چکیده
In the framework of the minimal supersymmetric standard model and the R-parity breaking model, we investigate various production processes of the supersymmetric partner at HERA energies. Our emphasis is paid upon the scalar top quark, the partner of top quark, characterized by its lighter mass than the top quark and other scalar quarks in a model. We propose experimentally feasible approaches to search for clean signals of the stop from either its production or decay processes.
منابع مشابه
Search for RPV Squark Production at HERA
The ep collider HERA is ideally suited to search for new particles which could be produced resonantly via the fusion of the incoming 27.5 GeV electron and a quark from the incoming 920 GeV proton. Particle masses up to the electron-proton centre-of-mass energy, √ s = 318 GeV, are kine-matically accessible. Two collider experiments, H1 and ZEUS, have searched for the production of squarks, the s...
متن کاملSEARCHES FOR LEPTOQUARKS, SQUARKS IN 6 Rp SUSY AND EXCITED FERMIONS AT HERA
Various searches for leptoquarks, scalar quarks in Rp-violating supersymmetric models, and excited fermions performed by the HERA experiments H1 and ZEUS are reviewed. No evidence for new particle production was observed from data collected by both experiments since 1994 in either electron-proton and positron-proton collisions. Stringent limits derived on the masses and couplings of these new p...
متن کاملSearch for Selectron and Squark Production in e + p Collisions at HERA ZEUS
We have searched for the production of a selectron and a squark in ep collisions at a center-of-mass energy of 300 GeV using the ZEUS detector at HERA. The selectron and squark are sought in the direct decay into the lightest neutralino in the framework of supersymmetric extensions to the Standard Model which conserve R-parity. No evidence for the production of supersymmetric particles has been...
متن کاملR-Parity Violating Supersymmetry at HERA
The phenomenology and prospects for a discovery of R-parity violating Supersymmetry at HERA is analysed. Emphasis is put on the direct resonant production of squarks by electron-quark fusion and all possible subsequent decay modes of the squarks are considered. In particular, the full consequences of the mixing in the supersymmetric gaugino-higgsino sector are taken into account. A rich phenome...
متن کاملSearch for RPV Gaugino and Gravitino Production at HERA
In R-parity violating supersymmetry a gaugino can be produced at HERA by the t-channel exchange of a selectron between the beam positron or electron and an initial quark from the beam proton. In the generic MSSM model the gaugino can decay in a cascade into two quarks and an (anti)lepton. For this model a search in the e±-channel has been performed with the ZEUS detector using combined e±p-data...
متن کامل