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Tau-spin correlations at the z-peak: aplanarities of the decay products

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Tau-spin correlations at the z-peak: aplanarities of the decay products

dc.contributor.author	Bernabeu Alberola, José
dc.contributor.author	Rius Dionis, Nuria
dc.contributor.author	Pich Zardoya, Antonio
dc.date.accessioned	2015-02-25T11:28:34Z
dc.date.available	2015-02-25T11:28:34Z
dc.date.issued	1991
dc.identifier.uri	http://hdl.handle.net/10550/42273
dc.description.abstract	The production of tau-pairs at the Z peak leads to interesting dynamical information contained in their spin density matrix. Besides the longitudinal polarization of each tau-lepton, there are two independent spin-spin correlations associated with the transverse (within the production plane) and normal (to the production plane) polarization components. The transverse-normal spin correlation is both a parity-odd and time reversal-odd observable. We analyze the correlated angular distribution of the decay products as polarization analyzers of the tau+tau- system. We find two azimuthal asymmetries of the decay products and the incoming beam, which are able to disentangle these spin correlation observables without reconstructing the tau-direction.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 1991, vol. 257, num. 1-2, p. 219-226
dc.source	Bernabeu Alberola, José; Rius Dionis, Nuria; Pich Zardoya, Antonio (1991) Tau-spin correlations at the z-peak: aplanarities of the decay products Physics Letters B 257 1-2 219 226
dc.subject	Física
dc.title	Tau-spin correlations at the z-peak: aplanarities of the decay products
dc.type	journal article	es_ES
dc.date.updated	2015-02-25T11:28:34Z
dc.identifier.doi	http://dx.doi.org/10.1016/0370-2693(91)90885-T
dc.identifier.idgrec	069061
dc.rights.accessRights	open access	es_ES