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Measurement of the quasi-elastic axial vector mass in neutrino-oxygen interactions

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Measurement of the quasi-elastic axial vector mass in neutrino-oxygen interactions

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dc.contributor.author	K2K Collaboration
dc.contributor.author	Gran, Richard
dc.contributor.author	Burguet Castell, Jordi
dc.contributor.author	Català Pérez, Joan
dc.contributor.author	Cervera Villanueva, Anselmo
dc.contributor.author	Gómez Cadenas, Juan José
dc.contributor.author	Novella Garijo, Pau
dc.contributor.author	Sorel, Michel
dc.contributor.author	Vidal Sitjes, Gabriel
dc.contributor.author	Tornero López, Ana María
dc.date.accessioned	2015-12-17T10:57:41Z
dc.date.available	2015-12-17T10:57:41Z
dc.date.issued	2006
dc.identifier.citation	K2K Collaboration Gran, R. Burguet Castell, Jordi Català Pérez, Joan Cervera Villanueva, Anselmo Gómez Cadenas, Juan José Novella Garijo, Pau Sorel, Michel Vidal Sitjes, Gabriel Tornero López, Ana María 2006 Measurement of the quasi-elastic axial vector mass in neutrino-oxygen interactions Physical Review D 74 5 052002
dc.identifier.uri	http://hdl.handle.net/10550/49575
dc.description.abstract	The weak nucleon axial-vector form factor for quasielastic interactions is determined using neutrino interaction data from the K2K Scintillating Fiber detector in the neutrino beam at KEK. More than 12 000 events are analyzed, of which half are charged-current quasielastic interactions nu(mu)n ->mu(-)p occurring primarily in oxygen nuclei. We use a relativistic Fermi gas model for oxygen and assume the form factor is approximately a dipole with one parameter, the axial-vector mass M-A, and fit to the shape of the distribution of the square of the momentum transfer from the nucleon to the nucleus. Our best fit result for M-A=1.20 +/- 0.12 GeV. Furthermore, this analysis includes updated vector form factors from recent electron scattering experiments and a discussion of the effects of the nucleon momentum on the shape of the fitted distributions.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2006, vol. 74, num. 5, p. 052002
dc.subject	Física
dc.title	Measurement of the quasi-elastic axial vector mass in neutrino-oxygen interactions
dc.type	journal article	es_ES
dc.date.updated	2015-12-17T10:57:41Z
dc.identifier.doi	10.1103/PhysRevD.74.052002
dc.identifier.idgrec	069893
dc.rights.accessRights	open access	es_ES