Added B builders for B -> X tau nu hadronic tau lines
Added B builders for B -> X tau nu hadronic tau lines. Also updated gamma and pi0 makers to not use track quantities. (thanks to @sklaver for the help with that).
Edited by Donal Hill
Added B builders for B -> X tau nu hadronic tau lines. Also updated gamma and pi0 makers to not use track quantities. (thanks to @sklaver for the help with that).