Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-10405
Aaron, F D; Alexa, C; Andreev, V; Antunovic, B; Aplin, S; Müller, K; Nowak, K; Robmann, P; Schmitz, C; Schöning, A; Straumann, U; Truöl, P; H1 Collaboration,; et al, (2008). Search for excited electrons in ep collisions at HERA. Physics Letters B, 666(2):131-139.
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*→eγ, e*→eZ and e*→νW 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/Λ 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.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Physics Institute|
|Deposited On:||19 Jan 2009 16:13|
|Last Modified:||27 Nov 2013 22:37|
|Related URLs:||http://www.sciencedirect.com/science/journal/03702693 (Publisher)|
|Citations:||Web of Science®. Times cited: 13|
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