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)%|

added hlt2 selection labels

assigned to @hmu

added RTA label

requested review from @ngrieser

/ci-test

added ci-test-triggered label

• [2022-06-09 08:21] Validation started with lhcb-master-mr#4693

added hlt2-throughput-decreased label

requested review from @mengzhen

In the first version: https://gitlab.cern.ch/lhcb/Moore/-/blob/master/Hlt/Hlt2Conf/python/Hlt2Conf/lines/bandq/builders/c_to_hadrons.py#L234 , we had Xicplus involved in the charm builder, but it does not contribute to any descriptors in https://gitlab.cern.ch/lhcb/Moore/-/blob/master/Hlt/Hlt2Conf/python/Hlt2Conf/lines/bandq/builders/doublecharm.py#L56 .

I notice that hongjie remove the Xicplus in the Merger for all the charm states. @gcavalle do you remember if we intended to contain the Xicplus in one of or some of the double-charm combiners ?

added 1 commit

• d3197642 - fix name typo

Compare with previous version

mentioned in issue #444 (closed)

Is this now ready for test ?

@mvesteri @poluekt This MR is for reducing the too-high rate for the previous double-open-charm lines (#410). Sorry that I forget to inform you at the beginning...

added 1 commit

• 78df4d43 - extend the mass range of Lc to cover Xicp

Compare with previous version

/ci-test

• [2022-06-14 18:07] Validation started with lhcb-master-mr#4741

removed hlt2-throughput-decreased label

resolved all threads

approved this merge request

merged

mentioned in commit ab4189f4

mentioned in issue #410

mentioned in merge request !1897 (merged)