Title
Search for composite and exotic fermions at LEP 2
Date Issued
01 January 1999
Access level
open access
Resource Type
journal article
Author(s)
Abreu P.
Adam W.
Adye T.
Adzic P.
Alderweireld T.
Alekseev G.D.
Alemany R.
Allmendinger T.
Allport P.P.
Almehed S.
Amaldi U.
Amato S.
Anassontzis E.G.
Andersson P.
Andreazza A.
Andringa S.
Antilogus P.
Apel W.D.
Arnoud Y.
Åsman B.
Augustin J.E.
Augustinus A.
Baillon P.
Bambade P.
Barao F.
Barbiellini G.
Barbier R.
Bardin D.Y.
Barker G.
Baroncelli A.
Battaglia M.
Baubillier M.
Becks K.H.
Begalli M.
Beilliere P.
Belokopytov Y.
Benvenuti A.C.
Berat C.
Berggren M.
Bertini D.
Bertrand D.
Besancon M.
Bianchi F.
Bigi M.
Bilenky M.S.
Bizouard M.A.
Bloch D.
Blom H.M.
Bonesini M.
Bonivento W.
Boonekamp M.
Booth P.S.L.
Borgland A.W.
Borisov G.
Bosio C.
Botner O.
Boudinov E.
Bouquet B.
Bourdarios C.
Bowcock T.J.V.
Boyko I.
Bozovic I.
Bozzo M.
Branchini P.
Brenke T.
Brenner R.A.
Bruckman P.
Brunet J.M.
Bugge L.
Buran T.
Burgsmueller T.
Buschmann P.
Cabrera S.
Caccia M.
Calvi M.
Camacho Rozas A.J.
Camporesi T.
Canale V.
Carena F.
Carroll L.
Caso C.
Castillo Gimenez M.V.
Cattai A.
Cavallo F.R.
Cerruti C.
Chabaud V.
Chapkin M.
Charpentier P.
Chaussard L.
Checchia P.
Chelkov G.A.
Chierici R.
Chliapnikov P.
Chochula P.
Chorowicz V.
Chudoba J.
Collins P.
Colomer M.
Contri R.
Cortina E.
Publisher(s)
Springer New York LLC
Abstract
A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed correspond to an integrated luminosity of about 48 pb-1 at an e+e- centre-of-mass energy of 183 GeV and about 20 pb-1 equally shared between the centre-of-mass energies of 172 GeV and 161 GeV. The search for pair-produced new leptons establishes 95% confidence level mass limits in the region between 70 GeV/c2 and 90 GeV/c2, depending on the channel. The search for singly produced excited leptons and quarks establishes upper limits on the ratio of the coupling of the excited fermion to its mass (λ/mf*) as a function of the mass.
Start page
41
End page
58
Volume
8
Issue
1
Language
English
OCDE Knowledge area
Física atómica, molecular y química
Scopus EID
2-s2.0-0002041077
Source
European Physical Journal C
ISSN of the container
14346044
Sources of information:
Directorio de Producción Científica
Scopus