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Experimental study of the atmospheric neutrino backgrounds for p -> e(+)pi(0) searches in water Cherenkov detectors

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Experimental study of the atmospheric neutrino backgrounds for p -> e(+)pi(0) searches in water Cherenkov detectors

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dc.contributor.author	K2K Collaboration
dc.contributor.author	Mine, S.
dc.contributor.author	Cervera Villanueva, Anselmo
dc.contributor.author	Burguet Castell, Jordi
dc.contributor.author	Català Pérez, Joan
dc.contributor.author	Gómez Cadenas, Juan José
dc.contributor.author	Novella Garijo, Pau
dc.contributor.author	Vidal Sitjes, Gabriel
dc.contributor.author	Sorel, Michel
dc.contributor.author	Tornero López, Ana María
dc.date.accessioned	2015-12-17T12:28:24Z
dc.date.available	2015-12-17T12:28:24Z
dc.date.issued	2008
dc.identifier.citation	K2K Collaboration Mine, S. Cervera Villanueva, Anselmo Burguet Castell, Jordi Català Pérez, Joan Gómez Cadenas, Juan José Novella Garijo, Pau Vidal Sitjes, Gabriel Sorel, Michel Tornero López, Ana María 2008 Experimental study of the atmospheric neutrino backgrounds for p -> e(+)pi(0) searches in water Cherenkov detectors Physical Review D 77 3 032003
dc.identifier.uri	http://hdl.handle.net/10550/49592
dc.description.abstract	The atmospheric neutrino background for proton decay via p -> e(+)pi(0) in ring imaging water Cherenkov detectors is studied with an artificial accelerator neutrino beam for the first time. In total, 3.14x10(5) neutrino events corresponding to about 10 megaton-years of atmospheric neutrino interactions were collected by a 1000 ton water Cherenkov detector (KT). The KT charged-current single pi(0) production data are well reproduced by simulation programs of neutrino and secondary hadronic interactions used in the Super-Kamiokande (SK) proton decay search. The obtained p -> e(+)pi(0) background rate by the KT data for SK from the atmospheric neutrinos whose energies are below 3 GeV is 1.63(-0.33)(+0.42)(stat)(-0.51)(+0.45)(syst)(megaton-year)(-1). This result is also relevant to possible future, megaton-scale water Cherenkov detectors.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2008, vol. 77, num. 3, p. 032003
dc.subject	Física
dc.title	Experimental study of the atmospheric neutrino backgrounds for p -> e(+)pi(0) searches in water Cherenkov detectors
dc.type	journal article	es_ES
dc.date.updated	2015-12-17T12:28:31Z
dc.identifier.doi	10.1103/PhysRevD.77.032003
dc.identifier.idgrec	069885
dc.rights.accessRights	open access	es_ES