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Multi-lepton production via R-parity violating interaction

Multi-lepton production via R-parity violating interaction. Junichi Kamoshita (Seikei univ.) Shoichi Kitamura (Tokyo Metripolitan univ. of Health Sci.) Tetsuro Kobayashi (Fukui Inst. Tech.) Yoshimasa Kurihara (KEK) Tadashi Kon (Seikei univ.). Contents. Introduction Models

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Multi-lepton production via R-parity violating interaction

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  1. Multi-lepton production via R-parity violating interaction Junichi Kamoshita (Seikei univ.) Shoichi Kitamura (Tokyo Metripolitan univ. of Health Sci.) Tetsuro Kobayashi (Fukui Inst. Tech.) Yoshimasa Kurihara (KEK) Tadashi Kon (Seikei univ.)

  2. Contents • Introduction • Models • Production processes • Numerical results • Summary and Conclusion

  3. e LQ q Introduction • ep collider HERA • Proton structure @small region • Basic eq interactions @high energy • LQ ~ squarks in R-parity br. (RB) Susy @HERA

  4. n t m n Models Superpotential & Interaction Lagrangian Experimental bounds (LEP2)

  5. m e- Production processes Signal RB int.

  6. Backgrounds x

  7. Numerical results Inputs Ee=30GeV, Ep=920GeV L=1fb-1 (for MC) Total cross section & Decay width Cf.

  8. Summary and Conclusion R-parity violating interaction • BG suppression for e- and + • Signal events Invariant mass HERA : useful for exploring l231 RB model

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