@article{10272/20460,
year = {2021},
url = {http://hdl.handle.net/10272/20460},
abstract = {In this paper, we present the one-loop radiative
corrections to the electroweak precision observable  ρ com ing from the IW = 1 multiplet excited leptons. We have cal culated the couplings of the exotic lepton triplet to the vector
bosons and ordinary leptons using the effective Lagrangian
approach. These couplings are then used to estimate the
excited lepton triplet contribution to the  ρ parameter. The
mass degenerate excited lepton contribution to  ρ is small
and can be neglected. However, if the excited leptons are non degenerate, their contribution can be large which can result in
more stringent constraints on the excited fermion parameter
space compared to the constraints from present experimental
searches and perturbative unitarity condition},
organization = {M. Rehman and M. E. Gomez wish to thank the
Istituto Nazionale di Fisica Nucleare, INFN, Sezione di Perugia, for
kind hospitality and support for collaboration visits during the early
and final stages of this work. The research of M.E.G. was supported
by the Spanish MINECO, under grants FPA2017-86380 and PID2019-
107844GB-C22},
publisher = {SpringerOpen},
title = {Excited lepton triplet contribution to electroweak observables at one loop level},
doi = {10.1140/epjc/s10052-021-09153-1},
author = {Rehman, M. and Gómez Santamaría, Mario Emilio and Panella, O.},
}