منابع مشابه
A classical picture of lepton neutral current forces
When charged current weak interations are excluded, the neutral current weak interaction is formally similar to ordinary electromagnetism with a massive photon. In this spirit, the Maxwell equations for the fields of the Z-boson are derived from the standard model. These describe the Z-boson scalar and vector potentials, and the Z-boson electric and magnetic fields whose sources are electron an...
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We perform a global analysis of the lepton-quark neutral current data on the low scale gravity model, which arises from the extra dimensions. The global data include HERA neutral current deep-inelastic scattering, Drell-yan production at the Tevatron, and fermion pair production at LEPII. The Drell-yan production, due to the large invariant mass data, provides the strongest constraint. Combinin...
متن کاملO(α) QED Corrections to Neutral Current Polarized Deep–Inelastic Lepton–Nucleon Scattering
The O(α) leptonic QED corrections to neutral current polarized deep inelastic lepton– nucleon scattering are calculated in leptonic variables both for the case of longitudinal and transverse nucleon polarization. The results of the complete calculation are compared with the corresponding leading log expressions. Numerical results are presented for the corrections in the kinematic range of the H...
متن کاملNeutral top-pion and lepton flavor violating processes
In the context of topcolor-assisted techicolor(TC2) models, we study the contributions of the neutral top-pion π t to the lepton flavor violating(LFV) processes li → ljγ and li → lj lkll. We find that the present experimental bound on μ → eγ gives severe constraints on the free parameters of TC2 models. Taking into account these constraints, we consider the processes li → lj lkll generated by t...
متن کاملLepton flavor violating signals of the neutral top-pion in future lepton colliders
The presence of the top-pions π t in the low-energy spectrum is an inevitable feature of the topcolor scenario. Taking into account the constraints of the present experimental limit of the lepton flavor violating(LFV ) process μ → eγ on the free parameters of topcolor-assisted techicolor(TC2) models, we study the contributions of the neutral top-pion π t to the LFV processes μ μ → τμ ( or τe), ...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1976
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.55.1951