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Charge and magnetic moment of the neutrino in the background field method and in the linear R-xi(L) gauge

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Charge and magnetic moment of the neutrino in the background field method and in the linear R-xi(L) gauge

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dc.contributor.author	Cabral Rosetti, Luis Gustavo
dc.contributor.author	Bernabeu Alberola, José
dc.contributor.author	Vidal Perona, Jorge
dc.contributor.author	Zepeda, A.
dc.date.accessioned	2014-01-24T10:23:37Z
dc.date.available	2014-01-24T10:23:37Z
dc.date.issued	2000
dc.identifier.citation	Cabral Rosetti, Luis Gustavo; Bernabeu Alberola, José; Vidal Perona, Jorge; Zepeda, A. (2000) Charge and magnetic moment of the neutrino in the background field method and in the linear R-xi(L) gauge European Physical Journal C 12 4 633 642
dc.identifier.uri	http://hdl.handle.net/10550/32619
dc.description.abstract	We present a computation of the charge and the magnetic moment of the neutrino in the recently developed electro-weak Background Field Method and in the linear R-xi(L) gauge. First, we deduce a formal Ward-Takahashi identity which implies the immediate cancellation of the neutrino electric charge. This Ward-Takahashi identity is as simple as that for QED. The computation of the (proper and improper) one loop vertex diagrams contributing to the neutrino electric charge is also presented in an arbitrary gauge, checking in this way the Ward-Takahashi identity previously obtained. Finally, the calculation of the magnetic moment of the neutrino, in the minimal extension of the Standard Model with massive Dirac neutrinos, is presented, showing: its gauge parameter and gauge structure independence explicitly.
dc.relation.ispartof	European Physical Journal C, 2000, vol. 12, num. 4, p. 633-642
dc.subject	Camps de galga (Física)
dc.subject	Camps, Teoria quàntica de
dc.subject	Partícules (Física nuclear)
dc.title	Charge and magnetic moment of the neutrino in the background field method and in the linear R-xi(L) gauge
dc.type	journal article	es_ES
dc.date.updated	2014-01-24T10:23:37Z
dc.identifier.doi	10.1007/s100520000304
dc.identifier.idgrec	069019
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1007/s100520000304