| Title |
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Measurement of the e(+)e(-)->gamma gamma(gamma) cross section at the LEP energies
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| Author |
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| Institution/Organisation |
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DELPHI Colloboration
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| Abstract |
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| The total and the differential cross-sections for the reaction e(+)e(-) --> gamma gamma(gamma) 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 Z(0) energies) on the QED cutoff parameters are Lambda(+) > 253 GeV and Lambda(-) > 225 GeV and the lower bound on the mass of an excited electron with an effective coupling constant lambda(gamma) = 1 is 231 GeV/c(2). All the Limits are at the 95% confidence level. (C) 1998 Published by Elsevier Science B.V. All rights reserved. | |
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| Language |
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English
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| Source (journal) |
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Physics letters: B. - Amsterdam, 1967, currens |
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| Publication |
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Amsterdam : 1998
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| ISSN |
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0370-2693
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| Volume/pages |
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433:3-4(1998), p. 429-440
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| ISI |
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000075484500029
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| Full text (Publishers DOI) |
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