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CCbar analysis

CCbar analysis. M. Guler, METU, Ankara . 0mu/1mu selection. I: If ( a vertex with one TT-matched track & Parent track (at least 0ne-segment) & at least two-segment daughter having TT-hits is reconstructed) II:

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CCbar analysis

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  1. CCbar analysis M. Guler, METU, Ankara

  2. 0mu/1mu selection • I: • If (a vertex with one TT-matched track & Parent track (at least 0ne-segment) & at least two-segment daughter having TT-hits is reconstructed) • II: • If (a vertex with one-TT matched track & at least 3-segment Isolated Muon (or good hadron in 0mu) is reconstructed) • III: • If(a vertex wih at least one-TT track && a second vertex with tracks • having TT-hits ) • IV: • If(a muon track (or good hadron in 0mu) is recontructed && at least 3 –segment track stop in the same plate. )

  3. Data sample Data sample: Map-03-04-15 (157846 events) Netscan Nucleus: Ver-03-09-02 Selection: SatoMurat-ver03&& golden-04-02-02.awk NuMu-CC events= 95450(93890) -Selected= 2816 -2059 charm -5 double charm 0mu events= 26568+1502 selected=827 -347 charm - 3 double charm

  4. 76925575 E=41.4GeV TT #2, Pd>1.82 GeV/c @ 90 C.L. TT #3, Pd1>3.81 GeV/c @ 90 C.L. TT #1, Pd2>4.11 GeV/c @ 90 C.L. TT #6 pl26

  5. 76925575 1ry@pl26 Ns=2, Nh=0 V2 @pl 26 Dq =104.2 mrad fl= 223.9mm Min_mass >0.68 GeV @ 90 CL. kink @pl 26 fl= 163.0 mm Dq =179.0 mrad PT= 0.719-0.258 GeV/c(MCS) PT>0.323 GeV/c @ 90 C.L. co-planality Q= 14.9+-2.0 mrad +0.786

  6. 81332312 E=29.9GeV TT #5, Pd1> 1.39 GeV/C @ 90CL. TT #8, Pd2>4.66 GeV/C @ 90 CL. Pd3>3.33 GeV/c @ 90 CL. TT #3 Pd4>2.72 GeV/c @ 90 CL. TT #6 PP>0.66 GeV/C @ 90 CL. pl23 pl22

  7. 81332312 Q= 24.2+-5.3 mrad 1ry@pl23 Ns=1, Nh=3 V2(1) @pl 23 Dq =96.3 mrad fl= 62.8mm Min_mass >0.76 GeV @ 90 CL. V2(2) @pl 22 fl= 976.6mm Dq =203.4 mrad Min_mass >1.33 GeV @ 90 CL. Q= 36.1+-0.3 mrad

  8. 56452542 rejected E=21.6 GeV 1ry@pl9 Ns=2, Nh=0 kink @pl 9 Dq =182.9 mrad fl= 50.9mm trident @pl 8 fl= 398.0 mm TT #2 TT #1 TT #3 TT #4, P = ? Pl 9 Pl 8

  9. 77393952

  10. 78220511 E=9.9 GeV P=-12.2GeV/c Evis=22.2GeV/c 1ry@pl28 Ns>10, Nh>10 Kink @pl 26 Dq =79.4 mrad fl= 1367.5mm PT= 0.079 -0.01 GeV/c (MCS) PT>0.047 GeV/c @ 90 CL. trident @pl 25 fl= 2556.5 mm +0.02 Pl28 Pl 26 pl 25

  11. 79044944 E=36.9 GeV P=-16.9 GeV/c Evis= 53.8 GeV Pd1>4.70 GeV/c @ 90 CL.(TT #2) Pd2>0.67 GeV/c @ 90 CL. Pd2>1.92 GeV/c @90 CL.(TT #5) Pd3>2.32 GeV/c @90 CL.(TT #7) Pl31 pl30

  12. 79044944 co-planality 1ry@pl31 Ns=4, Nh=0 V2 @pl 31 Q op= 340.2 mrad fl= 58.2mm Min_mass> 0.79 GeV/c @90 CL. (using MCS momentums) V4 @pl 30 fl= 761mm Q= 14.3+-2.0 mrad D0 d1 d2

  13. 77891071 E=35.4 GeV P=-13.5 GeV/c Evis=48.9 GeV P>2.04 GeV @90 CL P>0.31 GeV @90 CL P>1.92 GeV @90 CL Pl 7 Pl 6 pl 4

  14. 77891071 co-planality 1ry@pl7 Ns=6, Nh=1 V2 @pl 6 fl= 257.0mm Mmin> 0.58 GeV @90 CL kink @pl 4 fl= 2271.6 mm Dq = 67.4mrad PT> 0.14 GeV @ 90 CL Q= 17.2+-2.0 mrad D0 d1 d2

  15. 77691080 E=17.5 GeV P=-22.9 GeV/c Evis=40.4 GeV Pd> 0.39 GeV/c @90 CL. Pd1>2.08 GeV/c @90 CL. TT #4 Pd2> 1.09 GeV/c @90 CL. P33 Pl31 pl29

  16. 77691080 co-planality 1ry@pl33 Ns=2, Nh=4 kink @pl 231 Dq =302.0 mrad fl= 1445.5mm Pt= 0.2 -0.04 GeV/c (MCS) Pt> 0.12 GeV/c @ 90 CL. V2@pl 29 Q op= 298.0 mrad fl= 3012.6 mm Min_mass>0.77 GeV @ 90 CL. Q= 52.4+-2.0 mrad D0 d1 +0.07 d2

  17. 51872165 E=75.4GeV P=-106.7 GeV/c Evis=182.3 GeV 1ry@pl22 Ns=2, Nh=0 Trident @pl 20 fl= 1105.4 mm Min_mass>0.57 GeV @ 90 CL. V6?@pl 20 fl= 1211.2 mm Min_mass>1.8 GeV @ 90 CL. Pt1>3.81 GeV/c Pt2>1.29 GeV/c Pt3>2.58 GeV/c V5 ?? Pd1> 2.38 GeV/c Pd2>0.92 GeV/c Pd3> 1.03 GeV/c P22 Pl20 Pd4>1.31 GeV/c

  18. MC simulation Herwig(G.D.L)--->Eficass ---->Chant ~30 K CC && ~53 K NC ccbar events CC NC

  19. ccbar MC CC NC 1521 mm 2395 mm

  20. Charm fractions NC CC

  21. Hadronization NC D0 D0 D+ D- Ds+ D s- l c+ lc - 18.9 26.9 13.6 15.7 1.3 6.6 16.1 1.0 (%) CC D0 D0 D+ D- Ds+ D s- l c+ lc - 24.9 28.7 18.5 15.9 2.8 4.9 4.1 0.2 (%)

  22. Efficiency estimation NCDIS CCBAR MC events All events : 53034 In Emulsion : 28792 (54.3%) Prdc>0 : 13534 (47.0%) Right stack : 12589 (93.0%) SB found in CS: 10066 (79.9%) Located as 0mu: 4862 (48.3%) Selected : 1716 (35.3%) <enet>= 35.3±0.7% <eloc>= 16.9±0.2% CCDIS CCBAR MC events All events : 29939 In Emulsion : 16264 (54.3%) Prdc>0 : 7954 (48.9%) Right stack : 7500 (94.3%) Muon found : 6320 (85.1%) Located as CC : 4661 (73.8%) Selected : 1055 (22.6%) <enet>= 22.6±0.6 % <eloc>= 28.7±0.4%

  23. Selection efficiencies

  24. Kink PT

  25. Location efficiencies

  26. Background in CC ccbar Primary vertex secondary vertex event yield nmN -- m c S X S  - 1 prong 0.140.002 nmN -- m chXh white kink 0.550.010 nmN -- m chXh white trident 0.060.002 nmN -- m chXh white C5 0.0230.005 nmN -- m ch0Xh0 white V2 0.010.01 nmN -- m ch0 Xh0 whiteV4 0.0060.006 Overall 0.79 0.10

  27. Background in NC ccbar Primary vertex secondary vertex event yield nmN -- m c S X S  - 1 prong 0.0250.006 nmN -- m chXh white kink 0.080.02 nmN -- m chXh white trident 0.0120.003 nmN -- m chXh white C5 0.0030.002 nmN -- m ch0Xh0 white V2 0.0030.002 nmN -- m ch0 Xh0 whiteV4 0.00120.0007 Overall 0.12 0.02

  28. Production rate 3 candidate events in NC are signal and background is 0.12±0.02 eloc(ccbar)/e loc(NC) =0.77+-0.01 s(cc)/s(NC)=(3.5±2.1±0.6)x10-4

  29. Production rate 5 candidate events in NC are signal and background is 0.79±0.10 eloc(ccbar)/e loc(NC) =0.51+-0.01 s(cc)/s(CC)=(3.9±1.9(stat)±0.6(syst.))x10-4 2 events survive PT>0.25 GeV/c assume bg ~0.2 eloc(ccbar)/e loc(NC) =0.51+-0.01 s(cc)/s(CC)=(1.7±1.3(stat)±0.3(syst.))x10-4

  30. Status • Draft2 is ready • Waiting the comments (some already received)

  31. Hadronization D0 (%) D+ (%) Ds(%) lc (%) D023.5+-0.3 14.9+-0.2 2.1+-0.1 16.6+-0.3 D-12.4+-0.2 7.9+-0.2 1.0+-0.1 8.9+-0.2 Ds5.5+-0.2 3.2+-0.1 0.4+-0.1 3.5+-0.1 neutral + neutral= 23.5+-0.3 % neutral + charged= 51.5+-0.3 % charged+ charged= 25.0+-0.3 %

  32. Hadronization V2 V4 V6 C1 C3 C5 V2 14.6+-0.2 7.2+-0.2 0.1+-0.1 18.6+-0.3 18.9+-0.2 1.1+-0.1 V4 - 0.8+-0.1 0.0+-0.1 4.2+-0.1 4.6+-0.1 0.3+-0.1 V6 - - 0.0+-0.1 0.1+0.1 0.0+-0.1 0.0+-0.1 C1 - - - 5.1+-0.2 10.8+-0.2 0.3+-0.1 C3 - - - - 5.7+-0.2 0.8+0.1 C5 - - - - - 0.0+-0.1

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