Title
Search for excited quarks in ep collisions at HERA
Date Issued
27 July 2009
Access level
open access
Resource Type
journal article
Author(s)
Aaron F.D.
Alexa C.
Alimujiang K.
Andreev V.
Antunovic B.
Asmone A.
Backovic S.
Baghdasaryan A.
Barrelet E.
Bartel W.
Begzsuren K.
Belousov A.
Bizot J.C.
Boudry V.
Bozovic-Jelisavcic I.
Bracinik J.
Brandt G.
Brinkmann M.
Brisson V.
Bruncko D.
Bunyatyan A.
Buschhorn G.
Bystritskaya L.
Campbell A.J.
Avila K.B.C.
Cassol-Brunner F.
Cerny K.
Cerny V.
Chekelian V.
Cholewa A.
Contreras J.G.
Coughlan J.A.
Cozzika G.
Cvach J.
Dainton J.B.
Daum K.
Deák M.
de Boer Y.
Delcourt B.
Del Degan M.
Delvax J.
De Roeck A.
De Wolf E.A.
Diaconu C.
Dodonov V.
Dossanov A.
Dubak A.
Eckerlin G.
Efremenko V.
Egli S.
Eliseev A.
Elsen E.
Falkiewicz A.
Faulkner P.J.W.
Favart L.
Fedotov A.
Felst R.
Feltesse J.
Ferencei J.
Fischer D.J.
Fleischer M.
Fomenko A.
Gabathuler E.
Gayler J.
Ghazaryan S.
Glazov A.
Glushkov I.
Goerlich L.
Gogitidze N.
Gouzevitch M.
Grab C.
Greenshaw T.
Grell B.R.
Grindhammer G.
Habib S.
Haidt D.
Helebrant C.
Henderson R.C.W.
Hennekemper E.
Henschel H.
Herbst M.
Herrera G.
Hildebrandt M.
Hiller K.H.
Hoffmann D.
Horisberger R.
Hreus T.
Jacquet M.
Janssen M.E.
Janssen X.
Jemanov V.
Jönsson L.
Jung A.W.
Jung H.
Kapichine M.
Katzy J.
Kenyon I.R.
Kiesling C.
Klein M.
Kleinwort C.
Publisher(s)
Elsevier
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 * → q γ, q * → q Z and q * → q W 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. © 2009 Elsevier B.V.
Start page
335
End page
343
Volume
678
Issue
4
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-67650227784
Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN of the container
0370-2693
Sponsor(s)
Science and Technology Facilities Council PP/E000444/1 STFC
Sources of information:
Directorio de Producción Científica
Scopus