Measurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energies
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 p...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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1998
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| _version_ | 1797078060915228672 |
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| author | Abreu, P Adam, W Adye, T Adzic, P Alekseev, G Alemany, R Allport, P Almehed, S Amaldi, U Amato, S Andersson, P Andreazza, A Antilogus, P Apel, W Arnoud, Y Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barbier, R Bardin, D Barker, G Baroncelli, A |
| author_facet | Abreu, P Adam, W Adye, T Adzic, P Alekseev, G Alemany, R Allport, P Almehed, S Amaldi, U Amato, S Andersson, P Andreazza, A Antilogus, P Apel, W Arnoud, Y Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barbier, R Bardin, D Barker, G Baroncelli, A |
| author_sort | Abreu, P |
| collection | OXFORD |
| description | 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. |
| first_indexed | 2024-03-07T00:27:03Z |
| format | Journal article |
| id | oxford-uuid:7e7d782b-d684-4b44-b295-bbe78a0799cd |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:27:03Z |
| publishDate | 1998 |
| record_format | dspace |
| spelling | oxford-uuid:7e7d782b-d684-4b44-b295-bbe78a0799cd2022-03-26T21:10:33ZMeasurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energiesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7e7d782b-d684-4b44-b295-bbe78a0799cdEnglishSymplectic Elements at Oxford1998Abreu, PAdam, WAdye, TAdzic, PAlekseev, GAlemany, RAllport, PAlmehed, SAmaldi, UAmato, SAndersson, PAndreazza, AAntilogus, PApel, WArnoud, YAsman, BAugustin, JAugustinus, ABaillon, PBambade, PBarao, FBarbier, RBardin, DBarker, GBaroncelli, AThe 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. |
| spellingShingle | Abreu, P Adam, W Adye, T Adzic, P Alekseev, G Alemany, R Allport, P Almehed, S Amaldi, U Amato, S Andersson, P Andreazza, A Antilogus, P Apel, W Arnoud, Y Asman, B Augustin, J Augustinus, A Baillon, P Bambade, P Barao, F Barbier, R Bardin, D Barker, G Baroncelli, A Measurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energies |
| title | Measurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energies |
| title_full | Measurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energies |
| title_fullStr | Measurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energies |
| title_full_unstemmed | Measurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energies |
| title_short | Measurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energies |
| title_sort | measurement of the e e gt gamma gamma gamma cross section at the lep energies |
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