Strong-interaction effects in stop pair production at e+e- colliders

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dc.contributor.authorDrees, M. [UNESP]
dc.contributor.authorÉboli, O. J P [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of Wisconsin
dc.date.accessioned2014-05-27T11:19:47Z
dc.date.available2014-05-27T11:19:47Z
dc.date.issued1999-12-01
dc.description.abstractWe discuss perturbative and non-perturbative strong-interaction effects in the pair production of stop squarks (t̃1) at e+e- colliders. Events with an additional hard gluon allow to detect or exclude t̃1t̃*1 production even in scenarios with very small mass splitting between ti and an invisible lightest supersymmetric particle (LSP). Such events can also help to establish that t̃1 transforms as a triplet under SU(3)C. We also carefully study non-perturbative t̃1 fragmentation, which is currently not well understood: not only is the t̃1 fragmentation function not known very well, but also there are ambiguities in the algorithm employed to model fragmentation. We present numerical results both for CERN LEP-183 and for a proposed future e+e- collider operating at center-of-mass energy s1/2 = 500 GeV.en
dc.description.affiliationInst. de Fisica Teorica Universidade Estadual Paulista, Rua Pamplona 145, São Paulo, SP 01405-900
dc.description.affiliationDepartment of Physics University of Wisconsin, Madison, WI 53706
dc.description.affiliationUnespInst. de Fisica Teorica Universidade Estadual Paulista, Rua Pamplona 145, São Paulo, SP 01405-900
dc.format.extent337-345
dc.identifierhttp://dx.doi.org/10.1007/s100529900087
dc.identifier.citationEuropean Physical Journal C, v. 10, n. 2, p. 337-345, 1999.
dc.identifier.doi10.1007/s100529900087
dc.identifier.issn1434-6044
dc.identifier.scopus2-s2.0-0039724744
dc.identifier.urihttp://hdl.handle.net/11449/65899
dc.identifier.wosWOS:000082906900015
dc.language.isoeng
dc.relation.ispartofEuropean Physical Journal C
dc.relation.ispartofjcr5.172
dc.relation.ispartofsjr2,022
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleStrong-interaction effects in stop pair production at e+e- collidersen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights
unesp.author.orcid0000-0003-4107-6012[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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