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BandQ HLT2 lines for Jpsi2LambdaLambdabar

Ziyi Wang requested to merge ziyi_onia_jpsi2LmdLmd into master

Hlt2 lines for Jpsi -> Lambda anti-Lambda decay process. The Lambdas are reconstructed from LL/DD/TT tracks.

The LL/DD combinations refer to the Run 2 StrippingCcbar2LambdaLambdaJpsi2LooseLambdaLambdaLine.

The TT combinations follow the !1873 (merged) but with a tight cut in LambdaTT reconstruction. The make_ttrack_protons_for_V0 and make_ttrack_pions_for_V0 functions in V0_to_TT_builders.py are extended with more arguments to further suppress the rate.

The rates are estimated according to the minbias_hlt1_filtered samples.

rate Hlt2BandQ_Jpsi2LmdLmd_DDDD
#= 365988.0 Sum= 35.0 | rate = (  95.6 +/- 16.2 ) Hz

rate Hlt2BandQ_Jpsi2LmdLmd_LLDD
#= 365988.0 Sum= 22.0 | rate = (  60.1 +/- 12.8 ) Hz

rate Hlt2BandQ_Jpsi2LmdLmd_LLLL
#= 365988.0 Sum= 34.0 | rate = (  92.9 +/- 15.9 ) Hz

rate Hlt2BandQ_Jpsi2LmdLmd_TTDD
#= 365988.0 Sum= 41.0 | rate = ( 112.0 +/- 17.5 ) Hz

rate Hlt2BandQ_Jpsi2LmdLmd_TTLL
#= 365988.0 Sum= 39.0 | rate = ( 106.6 +/- 17.1 ) Hz
Edited by Ziyi Wang

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