Search for excited spin-3/2 and spin-1/2 leptons at linear colliders

Abstract

We study the single production of excited spin-3/2 and spin-1/2 leptons in future high energy $e^{+}{e}^{-}$ collisions. We calculate the production cross section and decay widths of excited spin-3/2 and spin-1/2 leptons according to their effective currents. We show that these possible new excited states can be probed up to the mass $m^{\ast }$ ~ $\sqrt{s}$ depending on their couplings to leptons and gauge bosons. We present the angular distributions of final state particles as a measure to discriminate between an excited spin-3/2 and spin-1/2 lepton signal. The signals and the corresponding backgrounds are studied in detail to obtain attainable limits on masses and couplings of excited leptons at future linear colliders

20 pages, 8 figures, 5 tables

References in corpus (10)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Search for Excited Leptons at LEP
• Double-Tag Events in Two-Photon Collisions at LEP
• Search for Charged Excited Leptons in e+e- Collisions at sqrt(s) = 183-209 GeV
• Single production of excited electrons at future e^-e^+, ep and pp colliders
• Search for Excited Electrons at HERA
• Production and Decay of Excited Electrons at the LHC
• Production and decay of single heavy spin-3/2 leptons in high energy electron-positron collisions
• Single production of excited neutrinos at future e^{+}e^{-}, ep and pp colliders

Cited by in corpus (13)

• Exclusive excited leptons search in two lepton final states at the CERN-LHC
• Simulating spin-3/2 particles at colliders
• Excited muon searches at the FCC based muon-hadron colliders
• Exotic leptons at future linear colliders
• Effect of spin-3/2 top quark excitation on ttbar production at the LHC
• Search for excited electrons through $\gamma \gamma$ scattering
• Search for spin-3/2 quarks at the Large Hadron Collider
• Higher-spin particles at high-energy colliders
• The signatures of doubly charged leptons in future linear colliders
• Excited Quarks Production at FCC and S$pp$C $pp$ Colliders
• Single production of excited spin-3/2 neutrinos at linear colliders
• Production and decay rates of excited leptons in a left-right symmetric scenario
• Effect of the excited and fourth generation leptons in lepton flavor violating μ^{-} \to e^{-}2γdecay