Results are reported from the complete salt phase of the Sudbury Neutrino Observatory experiment in which NaCl was dissolved in the D _ { 2 } O target .
The addition of salt enhanced the signal from neutron capture , as compared to the pure D _ { 2 } O detector .
By making a statistical separation of charged-current events from other types based on event-isotropy criteria , the effective electron recoil energy spectrum has been extracted .
In units of 10 ^ { 6 } cm ^ { -2 } s ^ { -1 } , the total flux of active-flavor neutrinos from ^ { 8 } B decay in the Sun is found to be 4.94 ^ { +0.21 } _ { -0.21 } \mbox { ( stat ) } ^ { +0.38 } _ { -0.34 } \mbox { ( syst ) } and the integral flux of electron neutrinos for an undistorted ^ { 8 } B spectrum is 1.68 ^ { +0.06 } _ { -0.06 } \mbox { ( stat ) } ^ { +0.08 } _ { -0.09 } \mbox { ( syst ) } ; the signal from ( \nu _ { x } , e ) elastic scattering is equivalent to an electron-neutrino flux of 2.35 ^ { +0.22 } _ { -0.22 } \mbox { ( stat ) } ^ { +0.15 } _ { -0.15 } \mbox { ( syst ) } .
These results are consistent with those expected for neutrino oscillations with the so-called Large Mixing Angle parameters , and also with an undistorted spectrum .
A search for matter-enhancement effects in the Earth through a possible day-night asymmetry in the charged-current integral rate is consistent with no asymmetry .
Including results from other experiments , the best-fit values for two-neutrino mixing parameters are \Delta m ^ { 2 } = ( 8.0 ^ { +0.6 } _ { -0.4 } ) \times 10 ^ { -5 } eV ^ { 2 } and \theta = 33.9 ^ { +2.4 } _ { -2.2 } degrees .