Publication
Title
Search for excited quarks in **ep** collisions at HERA
Author
Institution/Organisation
H1 Collaboration
Abstract
 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*¨qÁ, 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/© 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.
Language
English
Source (journal)
Physics letters: B. - Amsterdam, 1967, currens
Publication
Amsterdam : 2009
ISSN
0370-2693
Volume/pages
678:4(2009), p. 335-343
ISI
000268533800002
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address