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dc.date.accessioned | 2019-08-27T15:55:59Z | |
dc.date.available | 2019-08-27T15:55:59Z | |
dc.date.issued | 2004-04-08 | |
dc.identifier.uri | http://sedici.unlp.edu.ar/handle/10915/79918 | |
dc.description.abstract | The QED processes e+e− → e+e−μ+μ− and e+e− → e+e−τ+τ− are studied with the L3 detector at LEP using an untagged data sample collected at centre-of-mass energies 161 GeV ≤ √s 209 GeV. The τ -pairs are observed through the associated decay of one τ into eνν and the other into ππν. The cross sections are measured as a function of √s. For muon pairs, the cross section of the γ γ → μ+μ− process is also measured as a function of the two-photon centre-of-mass energy for 3 GeV ≤ Wγγ 40 GeV. Good agreement is found between these measurements and the O(α4) QED expectations. In addition, limits on the anomalous magnetic and electric dipole moments of the τ lepton are extracted. | en |
dc.format.extent | 53-62 | es |
dc.language | en | es |
dc.subject | Fotones | es |
dc.subject | L3 detector | es |
dc.subject | large electron positron collider | es |
dc.title | Muon-pair and tau-pair production in two-photon collisions at LEP | en |
dc.type | Articulo | es |
sedici.identifier.other | https://doi.org/10.1016/j.physletb.2004.02.012 | |
sedici.identifier.issn | 0370-2693 | es |
sedici.creator.person | Dova, María Teresa | es |
sedici.creator.person | L3 Collaboration | es |
sedici.subject.materias | Ciencias Exactas | es |
sedici.subject.materias | Física | es |
sedici.description.fulltext | true | es |
mods.originInfo.place | Facultad de Ciencias Exactas | es |
sedici.subtype | Articulo | es |
sedici.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
sedici.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
sedici.description.peerReview | peer-review | es |
sedici.relation.journalTitle | Physics Letters B | es |
sedici.relation.journalVolumeAndIssue | vol. 585, no. 1-2 | es |