Equalization of Response Functions of SK and SNO

Abstract

We have studied the equalization of the response functions of the SK and SNO for total event rate and event rate for the energy bins. To calculate the response functions of SNO, we have used the latest theoretical values of the cross section of the neutrino-deuteron CC process. By using these new theoretical values, we find that the trigger threshold of the SK at which its response function is equalized to the response function of SNO (at the trigger threshold of 6.75 MeV), is 8.5 MeV. This value is 0.1 MeV smaller than the value calculated using the old theoretical values of the cross section of neutrino-deuteron process. The use of these new theoretical values also produces a small change in the range of the energy bins where the response functions are equalized.