Constraints on spin-3/2 and excited spin-1/2 fermions coming from the leptonic Z0-partial width

Abstract

We consider effective interactions among excited spin-1/2 and spin-3/2 leptons with the usual ones. Assuming that these new leptons are lighter than the Z0 we will study the constraints on their masses and compositeness scale coming from the leptonic Z0 partial width.

Typeset using REVTEX 2.0, 9 pages and 3 figures (available upon request)

References in corpus (1)

• Constraints on singlet right-handed neutrinos coming from the $Z^0$-width

Cited by in corpus (6)

• Production and decay of single heavy spin-3/2 leptons in high energy electron-positron collisions
• Excited Leptonic States in Polarized e^-γand e^+ e^- Collisions
• Higher-spin particles at high-energy colliders
• Bounds on the electromagnetic interactions of excited spin-3/2 leptons
• Discriminating New Physics Scenarios at NLC: The Role of Polarization
• Excited Fermion Contribution to Z Physics at One Loop