Results from the Sudbury Neutrino Observatory Phase III

✍ Scribed by G. Prior

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 209 KB
• Volume: 188
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/j.nuclphysbps.2009.02.022

✦ Synopsis

The third and last phase of the Sudbury Neutrino Observatory (SNO) used a technique independent of previous methods, to measure the rate of neutral-current interactions in heavy water and determine precisely the total active 8 B solar neutrino flux. The total flux obtained is 5.54 +0.33 -0.31 (stat) +0.36 -0.34 (syst)×10 6 cm -2 s -1 , in agreement with previous measurements and standard solar models. Results from a global analysis of solar and reactor neutrino give Δm 2 =7.59 +0.19 -0.21 ×10 -5 eV 2 and θ = 34.4 +1.3 -1.2 degrees with a reduced uncertainty on the mixing angle compared to previous phases.