Title
Search for excited electrons in **ep** collisions at HERA Search for excited electrons in **ep** collisions at HERA
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam ,
Subject
Physics
Source (journal)
Physics letters: B. - Amsterdam, 1967, currens
Volume/pages
666(2008) :2 , p. 131-139
ISSN
0370-2693
ISI
000258907600005
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A search for excited electrons is performed using the full e}p data sample collected by the H1 experiment at HERA, corresponding to a total luminosity of 475 pb−1. The electroweak decays of excited electrons e*¨eÁ, e*¨eZ and e*¨ËW with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for excited electron production is found. Mass dependent exclusion limits on e* production cross sections and on the ratio f/© of the coupling to the compositeness scale are derived within gauge mediated models. These limits extend the excluded region compared to previous excited electron searches. The e* production via contact interactions is also addressed for the first time in ep collisions.
E-info
https://repository.uantwerpen.be/docman/iruaauth/f1fe6d/4e31be65049.pdf
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