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Precision Measurement of the (7)Be Solar Neutrino Interaction Rate in Borexino

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Precision Measurement of the (7)Be Solar Neutrino Interaction Rate in Borexino

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dc.contributor.author Borexino Collaboration
dc.contributor.author Bellini, Gianpaolo
dc.contributor.author Peña Garay, Carlos
dc.date.accessioned 2014-11-04T09:24:43Z
dc.date.available 2014-11-04T09:24:43Z
dc.date.issued 2011
dc.identifier.citation Borexino Collaboration Bellini, Gianpaolo Peña Garay, Carlos 2011 Precision Measurement of the (7)Be Solar Neutrino Interaction Rate in Borexino Physical Review Letters 107 14 141302
dc.identifier.uri http://hdl.handle.net/10550/39567
dc.description.abstract A direct measurement of the 0.862 MeV 7Be solar neutrino interaction rate performed with the Borexino detector at the Laboratori Nazionali del Gran Sasso yields 46.0±1.5stat+1.6−1.5syst counts/day/(100 tons). Our result is the first direct measurement of a sub-MeV solar neutrino rate with an accuracy better than 5%. The hypothesis of no oscillation for 7Be solar neutrinos is rejected at 4.9σ C.L. Using the latest Standard Solar Model (SSM) flux predictions, the result leads directly to a precise determination of the survival probability for solar νe's in vacuum, and permits us to probe with unprecedented sensitivity the transition between the matter-enhanced and vacuum-dominated neutrino oscillation regimes characteristic of the MSW-LMA solution to the solar neutrino problem.
dc.language.iso eng
dc.relation.ispartof Physical Review Letters, 2011, vol. 107, num. 14, p. 141302
dc.subject Física
dc.title Precision Measurement of the (7)Be Solar Neutrino Interaction Rate in Borexino
dc.type journal article es_ES
dc.date.updated 2014-11-04T09:24:43Z
dc.identifier.doi 10.1103/PhysRevLett.107.141302
dc.identifier.idgrec 071719
dc.rights.accessRights open access es_ES

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