:formula_1It also gives the relationship between the masses of the W and Z bosons (denoted as "m"W and "m"Z)::formula_2The angle can be expressed in terms of the formula_3 and formula_4 coupling constants (g and g', respectively)::formula_5 and formula_6As the value of the mixing angle is currently determined empirically, it has been mathematically defined as::formula_7The value of "θ"W varies as a function of the momentum transfer, "Q", at which it is measured.
W and "m"Z):: formula_9The angle can be expressed in terms of the formula_10 and formula_11 coupling constants (g and g', respectively):: formula_12 and formula_13As the value of the mixing angle is currently determined empirically, it has been mathematically defined as:: formula_14The value of "θ"W varies as a function of the momentum transfer, "Q", at which it is measured.