Systematic uncertainties in long-baseline neutrino oscillations for large theta(13)

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dc.contributorVirginia Techen
dc.contributor.authorColoma, P.en
dc.contributor.authorHuber, Patricken
dc.contributor.authorKopp, J.en
dc.contributor.authorWinter, W.en
dc.contributor.departmentCenter for Neutrino Physicsen
dc.contributor.departmentPhysicsen
dc.date.accessed2013-12-16en
dc.date.accessioned2013-12-18T19:46:38Zen
dc.date.available2013-12-18T19:46:38Zen
dc.date.issued2013-02-11en
dc.description.abstractWe study the physics potential of future long-baseline neutrino oscillation experiments at large theta(13), focusing especially on systematic uncertainties. We discuss superbeams, beta beams, and neutrino factories, and for the first time compare these experiments on an equal footing with respect to systematic errors. We explicitly simulate near detectors for all experiments; we use the same implementation of systematic uncertainties for all experiments; and we fully correlate the uncertainties among detectors, oscillation channels, and beam polarizations as appropriate. As our primary performance indicator, we use the achievable precision in the measurement of the CP-violating phase delta. We find that a neutrino factory is the only instrument that can measure delta with a precision similar to that of its quark sector counterpart. All neutrino beams operating at peak energies >= 2 GeV are quite robust with respect to systematic uncertainties, whereas especially beta beams and T2HK suffer from large cross-section uncertainties in the quasielastic regime, combined with their inability to measure the appearance signal cross sections at the near detector. A noteworthy exception is the combination of a gamma = 100 beta beam with an SPL-based superbeam, in which all relevant cross sections can be measured in a self-consistent way. This provides a performance second only to that of the neutrino factory. For other superbeam experiments such as LBNO and the setups studied in the context of the LBNE reconfiguration effort, statistics turns out to be the bottleneck. In almost all cases, the near detector is not critical to control systematics, since the combined fit of appearance and disappearance data already constrains the impact of systematics to be small, provided that the three-active-flavor oscillation framework is valid.en
dc.description.sponsorshipDFG WI 2639/3-1, WI 2639/4-1en
dc.description.sponsorshipU.S. Department of Energy DE-SC0003915en
dc.description.sponsorshipEU FP7 Project EURONU CE212372en
dc.description.sponsorshipEU FP7 Project INVISIBLES (Marie Curie Actions) PITN-GA-2011-289442en
dc.description.sponsorshipFermi Research Alliance DE-AC02-07CH11359en
dc.description.sponsorshipU.S. Department of Energyen
dc.identifier.citationColoma, Pilar ; Huber, Patrick ; Kopp, Joachim ; et al., FEB 11 2013. “Systematic uncertainties in long-baseline neutrino oscillations for large theta(13),” PHYSICAL REVIEW D 87(3): 033004. DOI: 10.1103/PhysRevD.87.033004en
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.87.033004en
dc.identifier.issn1550-7998en
dc.identifier.urihttp://hdl.handle.net/10919/24741en
dc.identifier.urlhttp://link.aps.org/doi/10.1103/PhysRevD.87.033004en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectexperiment-simulatoren
dc.subjectbeta-beamen
dc.subjectsuperbeamsen
dc.subjectAstronomy & Astrophysicsen
dc.subjectPhysicsen
dc.titleSystematic uncertainties in long-baseline neutrino oscillations for large theta(13)en
dc.title.serialPhysical Review Den
dc.typeArticle - Refereeden

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