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Title
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Search for excited electrons in **ep** collisions at HERA
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Author
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Institution/Organisation
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H1 Collaboration
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Abstract
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| 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. |
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Language
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English
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Source (journal)
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Physics letters : B. - Amsterdam, 1967, currens
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Publication
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Amsterdam
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North-Holland
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2008
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ISSN
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0370-2693
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DOI
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10.1016/J.PHYSLETB.2008.07.014
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Volume/pages
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666
:2
(2008)
, p. 131-139
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ISI
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000258907600005
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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