Title
Measurement of the e+e- → γγ(γ) cross section at the LEP energies
Date Issued
13 August 1998
Access level
open access
Resource Type
journal article
Author(s)
Abreu P.
Adam W.
Adye T.
Adzic P.
Alekseev G.D.
Alemany R.
Allport P.P.
Almehed S.
Amaldi U.
Amato S.
Andersson P.
Andreazza A.
Antilogus P.
Apel W.D.
Arnoud Y.
Asman B.
Augustin J.E.
Augustinus A.
Baillon P.
Bambade P.
Barao F.
Barbier R.
Bardin D.Y.
Barker G.
Baroncelli A.
Barring O.
Battaglia M.
Baubillier M.
Becks K.H.
Begalli M.
Beilliere P.
Belokopytov Y.
Belous K.
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.
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.
Canepa M.
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.
Chen M.
Chierici R.
Chliapnikov P.
Chochula P.
Chorowicz V.
Chudoba J.
Collins P.
Colomer M.
Contri R.
Cortina E.
Cosme G.
Cossutti F.
Publisher(s)
Elsevier B.V.
Abstract
The total and the differential cross-sections for the reaction e+e- → γγ(γ) have been measured with the DELPHI detector at LEP at centre-of-mass energies from 130 to 183 GeV for an integrated luminosity of 78.19 pb-1. The results agree with the QED predictions. The lower limits (obtained including previously published results at the Z0 energies) on the QED cutoff parameters are Λ+ > 253 GeV and Λ-> 225 GeV and the lower bound on the mass of an excited electron with an effective coupling constant λγ = 1 is 231 GeV/c2. All the limits are at the 95% confidence level. © 1998 Published by Elsevier Science B.V. All rights reserved.
Start page
429
End page
440
Volume
433
Issue
April 3
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Física nuclear
Scopus EID
2-s2.0-0348115979
Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN of the container
03702693
Sources of information:
Directorio de Producción Científica
Scopus