Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-23959
Aaron, F D; Alexa, C; Aliumjiang, K; Andreev, V; Müller, K; Nowak, K; Robmann, P; Schmitz, C; Straumann, U; Truöl, P; H1 Collaboration, (2009). Search for excited quarks in ep collisions at HERA. Physics Letters B, 678(4):335-343.
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A search for excited quarks is performed using the full e±p data sample collected by the H1 experiment at HERA, corresponding to a total integrated luminosity of 475 pb−1. The electroweak decays of excited quarks q*→qγ, q*→qZ and q*→qW with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for first generation excited quark production is found. Mass dependent exclusion limits on q* 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 quark searches.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Physics Institute|
|Deposited On:||25 Nov 2009 14:03|
|Last Modified:||28 Nov 2013 01:09|
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