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LAB observables for the muon polarization in K+->pi(+)mu(+)mu(-)

Repositori DSpace/Manakin

dc.contributor.author	Gómez Dumm, Daniel
dc.contributor.author	Vidal Perona, Jorge
dc.date.accessioned	2014-01-31T08:54:56Z
dc.date.available	2014-01-31T08:54:56Z
dc.date.issued	1999
dc.identifier.citation	Gómez Dumm, Daniel Vidal Perona, Jorge 1999 LAB observables for the muon polarization in K+->pi(+)mu(+)mu(-) Physics Letters B 463 2-4 309 316
dc.identifier.uri	http://hdl.handle.net/10550/32685
dc.description.abstract	We analyse the muon longitudinal polarization asymmetry Delta(long) in the decay K+ --> pi(+)mu(+)mu(-). It is stressed that, since the muon helicities are not Lorentz-invariant quantities, the magnitude of Delta(long) depends in general on the reference frame. We consider the muon helicities in the LAB system, and study the sensitivity of the longitudinal polarization asymmetry to the flavour-mixing parameters in the Standard Model for stopped and in-flight decaying K+. A similar analysis is carried out for the decay K-L --> mu(+)mu(-). We find that in both cases the asymmetry is diluted when increasing the energy of the decaying kaons.
dc.relation.ispartof	Physics Letters B, 1999, vol. 463, num. 2-4, p. 309-316
dc.subject	Partícules (Física nuclear)
dc.title	LAB observables for the muon polarization in K+->pi(+)mu(+)mu(-)
dc.type	journal article	es_ES
dc.date.updated	2014-01-31T08:54:56Z
dc.identifier.doi	10.1016/S0370-2693(99)00997-1
dc.identifier.idgrec	093024
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/S0370-2693(99)00997-1