Search for Excited Electrons at HERA

Details Search for Excited Electrons at HERA Search for Excited Electrons at HERA

2002-07-16

arxiv.org/abs/hep-ex/0207038v1

Phys.Lett.B548:35-44,2002

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages, 4 figures, 1 table

Scientific paper

10.1016/S0370-2693(02)02764-8

A search for excited electron e* production is described in which the electroweak decays e*->e gamma, e*->e Z and e*->nu W are considered. The data used correspond to an integrated luminosity of 120 pb^(-1) taken in e^(+-)p collisions from 1994 to 2000 with the H1 detector at HERA at centre-of-mass energies of 300 and 318 GeV. No evidence for a signal is found. Mass dependent exclusion limits are derived for the ratio of the couplings to the compositeness scale, f/Lambda. These limits extend the excluded region to higher masses than has been possible in previous direct searches for excited electrons.

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