Search for excited leptons at 130–140 GeV
نویسندگان
چکیده
منابع مشابه
Search for Heavy Leptons at Hadron Colliders
Four models are considered which contain heavy leptons beyond the three families of the standard model. Two are fourth-generation extensions of the standard model in which the right-handed heavy leptons are either isosinglets or in an isodoublet; the other two are motivated by the aspon model of CP violation. In all these models, the heavy neutrino can either be heavier than, or comparable in m...
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We analyze the potential of the CERN Large Hadron Collider (LHC) to search for excited spin-12 electrons and neutrinos. Assuming a SU(2)L⊗U(1)Y invariant model, we study in detail the single production of excited electrons and neutrinos and respective backgrounds through the reactions pp → e+e−V and e±νV with V = γ, W , or Z. We show that the LHC will be able to tighten considerably the direct ...
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Abstract On this occasion to honour Professor Martin Perl’s 65th birthday, I present some of the important contributions of Martin to the field of strong interactions. I also present my own interest in studying lepton pairs in hadron collisions and the development of instrumentation to distinguish leptons from hadrons. These studies eventually led to the development of the idea and experimentat...
متن کاملSearch for Excited Neutrinos at Hera
A search for excited neutrinos produced in electron–proton collisions is performed using a data sample corresponding to an integrated luminosity of 114 pb recently collected by the H1 detector at HERA. In absence of a signal, the measurement is interpreted within a minimal model parameterised in terms of couplings and compositness scale. New parameter regions, beyond other colliders sensitiviti...
متن کاملSearch for Isolated Leptons with Missing pT and Multi-leptons at HERA
e ± p collisions with the H1 and ZEUS detectors at the HERA collider. The data sample corresponds to an integrated luminosity of ∼ 1 fb, representing the full HERA high-energy data set. The yields of single, diand tri-lepton events are measured and compared to the Standard Model predictions, looking for possible deviations. No significant discrepancy with respect to the Standard Model expectati...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1996
ISSN: 0370-2693
DOI: 10.1016/0370-2693(96)00961-6