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An effective field theory approach to the electroweak corrections at LEP energies
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An effective field theory approach to the electroweak corrections at LEP energies
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| dc.contributor.author | Akhundov, Arif A. | |
| dc.contributor.author | Bernabeu Alberola, José | |
| dc.contributor.author | Gómez Dumm, Daniel | |
| dc.contributor.author | Santamaria, Arcadi | |
| dc.date.accessioned | 2016-05-03T11:20:43Z | |
| dc.date.available | 2016-05-03T11:20:43Z | |
| dc.date.issued | 1999 | |
| dc.identifier.citation | Akhundov, Arif A.; Bernabeu Alberola, José; Gómez Dumm, Daniel; Santamaria, Arcadi (1999) An effective field theory approach to the electroweak corrections at LEP energies Nuclear Physics B 563 1-2 82 96 | |
| dc.identifier.uri | http://hdl.handle.net/10550/53313 | |
| dc.description.abstract | In the framework of the effective field theory (EFT) we discuss the electroweak (EW) corrections at LEP energies. We obtain the effective Lagrangian in the large m_t limit, and reproduce analytically the dominant EW corrections to the LEP2 processes e+ e- --> gamma Z and e+ e- --> Z Z. To include effects of finite top-quark and Higgs masses, we use the effective Lagrangian at tree level and fit LEP1/SLD observables with four arbitrary parameters, plus alpha_s(m_Z). The EFT approach works remarkably well. Using the effective couplings determined from the fit, and tree-level EFT formulae, we predict the cross sections for e+ e- --> Z Z, gamma Z at a level better than 1%. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Nuclear Physics B, 1999, vol. 563, num. 1-2, p. 82-96 | |
| dc.subject | Física | |
| dc.title | An effective field theory approach to the electroweak corrections at LEP energies | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2016-05-03T11:20:43Z | |
| dc.identifier.doi | 10.1016/S0550-3213(99)00565-9 | |
| dc.identifier.idgrec | 069020 | |
| dc.rights.accessRights | open access | es_ES |
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