- #1
Catria
- 152
- 4
Hello everyone,
I have read about the theoretical values of the Z boson decay partial width and how well they agreed with experiment. However there is something I do not quite understand: since these theoretical calculations were performed with the hypothesis that the masses of the decay products were negligible with respect to the mass of the Z boson, what changes would have to be effected if one did not neglect the mass of the bottom quark (~4-5 GeV) when computing the partial width of the Z boson into a bottom and anti-bottom quark pair?
I have read about the theoretical values of the Z boson decay partial width and how well they agreed with experiment. However there is something I do not quite understand: since these theoretical calculations were performed with the hypothesis that the masses of the decay products were negligible with respect to the mass of the Z boson, what changes would have to be effected if one did not neglect the mass of the bottom quark (~4-5 GeV) when computing the partial width of the Z boson into a bottom and anti-bottom quark pair?