Reduce the rates of double-charm lines in B&Q wg
As mentioned in #410, the rates of double-charm lines in B&Q are found to be very high. The rate is reduced to about 10% followed the selection in Charm wg. 50k MB MC samples are used to test the rate of the previous and updated double-charm line.
updated double-charm line:
Hlt2BandQ_DoubleCharmOppositeSign_LineDecisionWithOutput #=50000 Sum=48 Eff=|(0.09600000 +- 0.0138498)%|
Hlt2BandQ_DoubleCharmSameSign_LineDecisionWithOutput #=50000 Sum=56 Eff=|(0.1120000 +- 0.0149582)%|
previous double-charm line:
Hlt2BandQ_DoubleCharmOppositeSign_LineDecisionWithOutput #=50000 Sum=533 Eff=|( 1.066000 +- 0.0459268)%|
Hlt2BandQ_DoubleCharmSameSign_LineDecisionWithOutput #=50000 Sum=569 Eff=|( 1.138000 +- 0.0474352)%|