NAGIOS: RODERIC FUNCIONANDO

Tau-odd correlation on the Z0-Peak

DSpace Repository

dc.contributor.author	Bernabeu Alberola, José
dc.contributor.author	Rius Dionis, Nuria
dc.date.accessioned	2015-03-03T11:31:24Z
dc.date.available	2015-03-03T11:31:24Z
dc.date.issued	1989
dc.identifier.uri	http://hdl.handle.net/10550/42588
dc.description.abstract	T-odd observables can be due either to T-violation or to unitarity corrections. We find a non-vanishing expectation value of a T-odd operator for from one-loop electroweak corrections to the resonant decay and from interference with the background. For unpolarized beams, chirality conservation allows only one relevant absorptive part of the interference between different amplitudes. We identify this unique T-odd effect as the spin correlation , where are the transverse (within the production plane) and normal (to the plane) spin components for f and , respectively. In the standard theory it is generated from the Z, W exchanges in the final vertex, from the Z-γ self-energy and from the tree-level Z-γ interference. Its value is −1.1% for e+e− → τ+τ− at 90°.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 1989, vol. 232, num. 1, p. 127-133
dc.source	Bernabeu Alberola, José; Rius Dionis, Nuria (1989) Tau-odd correlation on the Z0-Peak Physics Letters B 232 1 127 133
dc.subject	Física
dc.title	Tau-odd correlation on the Z0-Peak
dc.type	journal article	es_ES
dc.date.updated	2015-03-03T11:31:24Z
dc.identifier.doi	http://dx.doi.org/10.1016/0370-2693(89)90569-8
dc.identifier.idgrec	069065
dc.rights.accessRights	open access	es_ES