A Low Energy Measurement of the B Solar Neutrino Spectrum at the Sudbury Neutrino Observatory (Paperback)


The Sudbury Neutrino Observatory has previously shown that 8B solar neutrinos undergo flavor transformation between the Sun and the Earth. This work presents a joint analysis of one-third of the pure D 2O and salt phase data sets with an electron energy threshold of 3.5 MeV. A measurement of the neutral current interaction rate, sensitive to all neutrino flavors, gives a total 8B flux of 4.79 +/- 0.22 (stat) +/- 0.13 (syst) x 106 cm-2s -1. This is in agreement with the prediction of the Standard Solar Model. For the first time we obtain the electron neutrino survival probability separately for downward-going (day) and upward-going (night) solar neutrinos. No significant distortion is observed day or night for 8B neutrinos with energies greater than 6 MeV. The lack of distortion, but overall suppression of electron neutrinos relative to the total flux, is consistent with matter-induced neutrino transformation in the Sun and the large mixing angle solution.

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Product Description

The Sudbury Neutrino Observatory has previously shown that 8B solar neutrinos undergo flavor transformation between the Sun and the Earth. This work presents a joint analysis of one-third of the pure D 2O and salt phase data sets with an electron energy threshold of 3.5 MeV. A measurement of the neutral current interaction rate, sensitive to all neutrino flavors, gives a total 8B flux of 4.79 +/- 0.22 (stat) +/- 0.13 (syst) x 106 cm-2s -1. This is in agreement with the prediction of the Standard Solar Model. For the first time we obtain the electron neutrino survival probability separately for downward-going (day) and upward-going (night) solar neutrinos. No significant distortion is observed day or night for 8B neutrinos with energies greater than 6 MeV. The lack of distortion, but overall suppression of electron neutrinos relative to the total flux, is consistent with matter-induced neutrino transformation in the Sun and the large mixing angle solution.

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Product Details

General

Imprint

Proquest, Umi Dissertation Publishing

Country of origin

United States

Release date

September 2011

Availability

Supplier out of stock. If you add this item to your wish list we will let you know when it becomes available.

First published

September 2011

Authors

Dimensions

254 x 203 x 25mm (L x W x T)

Format

Paperback - Trade

Pages

382

ISBN-13

978-1-243-97040-4

Barcode

9781243970404

Categories

LSN

1-243-97040-5



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