B2OC: tighen cuts of Ds1 builder
In order to get rid of the error
B2OCDs2460m2DsPiPiCombiner_51bbb330 WARNING Suppressing message: 'Too many candidates. Stopping the combination.
B2OCDs2460p2DsPiPiCombiner_d0cba121 WARNING Suppressing message: 'Too many candidates. Stopping the combination.
I changed the following things.
- Only keep KKPi and KPiPi for ds candidate
- tighten DOCA cut for Ds2460 builder from 0.5mm to 0.25mm
- tighten k_pik_min to 0 for kaons from Ds
- tighten pi_pid_max to 5 for pions from Ds2460
Now the error has gone.