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AP for Lb2etacpk (etac2ppbar & KsKpi) 24r1 data

Analysis Production for Lb2etacpk (etac2ppbar & KsKpi) 24r1 data, with momentum scale calibration. (selections are updated and old samples are already archived, supersedes !3005 (merged))

Selection:

ipchi2>9 for p/K from Lb and ppbar/Kpi from etac,

ipchi2<16, vchi2<25 for Lb

fdchi2>25, vdz>1.5mm, dls>3 for etac

doca<0.25 between long tracks

Edited by Yujie Li

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