Title
Search for excited electrons in ep collisions at HERA
Date Issued
14 August 2008
Access level
open access
Resource Type
journal article
Author(s)
Aaron F.D.
Alexa C.
Andreev V.
Antunovic B.
Aplin S.
Asmone A.
Astvatsatourov A.
Bacchetta A.
Backovic S.
Baghdasaryan A.
Baranov P.
Barrelet E.
Bartel W.
Beckingham M.
Begzsuren K.
Behnke O.
Belousov A.
Berger N.
Bizot J.C.
Boenig M.O.
Boudry V.
Bozovic-Jelisavcic I.
Bracinik J.
Brandt G.
Brinkmann M.
Brisson V.
Bruncko D.
Bunyatyan A.
Buschhorn G.
Bystritskaya L.
Campbell A.J.
Cantun Avila K.B.
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.
Essenov S.
Falkiewicz A.
Faulkner P.J.W.
Favart L.
Fedotov A.
Felst R.
Feltesse J.
Ferencei J.
Finke L.
Fleischer M.
Fomenko A.
Gabathuler E.
Gayler J.
Ghazaryan S.
Glazov A.
Glushkov I.
Goerlich L.
Goettlich M.
Gogitidze N.
Gouzevitch M.
Grab C.
Greenshaw T.
Grell B.R.
Grindhammer G.
Habib S.
Haidt D.
Hansson M.
Helebrant C.
Henderson R.C.W.
Henschel H.
Herrera G.
Hildebrandt M.
Hiller K.H.
Hoffmann D.
Horisberger R.
Hovhannisyan A.
Hreus T.
Jacquet M.
Janssen M.E.
Janssen X.
Jemanov V.
Publisher(s)
Elsevier
Abstract
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 * → e γ, e * → e Z and e * → ν W 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. © 2008 Elsevier B.V. All rights reserved.
Start page
131
End page
139
Volume
666
Issue
2
Language
English
OCDE Knowledge area
Física nuclear
Scopus EID
2-s2.0-50949094955
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