50 likes | 184 Views
p m rejection studies. Plots and discussion to be inserted in the note by the end of the week…. Sample. Single particle ( m or p forced to decay ) Selection efficiency studied for NPar ≤ 5 (reject events with hadronic activity)
E N D
pm rejection studies Plots and discussion to be inserted in the note by the end of the week…
Sample • Single particle ( m or p forced to decay) • Selection efficiency studied for • NPar ≤ 5 (reject events with hadronic activity) • Number of EF reconstructed (and combined) tracks in ID and MS equal to 1
Applied selection (ordered) • Study done on mu4 threshold • Trk_d0 ≤ 0.2 • Trk_numberOfPixelHits ≥ 3 • Trk_numberOfBLayerHits > 0 • Trk_numberOfSCTHits ≥ 6 • Trk_pt * tm_ptirmu – 1 ≤ 0.267 • tm_chi2matchcb ≤ 20
Effect on p sample pT distribution before and after cuts Accepted fraction after cuts p pT Rejected 1/3 of the events p pT
Effects on m sample Efficiency after cuts ~15% of m rejected