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HES-HKS & KaoS meeting

HES-HKS & KaoS meeting. Toshi Gogami 22/Nov/2012. Köln , 17/Nov/2012. Contents. KID cut efficiency Imitation data !!. Imitation data (CH 2 target). K +. p. K +. p. Imitation data (CH 2 target). K +. p. IMITATION. K +. p. REAL. Mass square (CH 2 target ). Normalized N.P.E.

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HES-HKS & KaoS meeting

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  1. HES-HKS & KaoS meeting ToshiGogami 22/Nov/2012 Köln , 17/Nov/2012

  2. Contents • KID cut efficiency • Imitation data !!

  3. Imitation data (CH2 target) K+ p K+ p

  4. Imitation data (CH2 target) K+ p IMITATION K+ p REAL

  5. Mass square (CH2 target) Normalized N.P.E REAL [GeV/c2]2 [GeV/c2]2

  6. Normalized N.P.E. (CH2 target) [GeV/c2]2 REAL Normalized N.P.E Normalized N.P.E

  7. How much are these different ? IMITATION REAL

  8. Projection onto each axis BLACK : Real BLUE : Imitation

  9. Comparison

  10. Comparison • (Nreal-Nimitation)/Nreal * 100 • < 3% : くすんだ Blue • 3 – 5% : Blue • 5 – 11% : Green • 11 – 15% : Pink • > 15% : Red

  11. Comparison • (Nreal-Nimitation)/Nreal * 100 • < 3% : くすんだ Blue • 3 – 5% : Blue • 5 – 11% : Green • 11 – 15% : Pink • > 15% : Red

  12. 1-D cut efficiency (Mass square)  -0.5 -0.4 --> 0.000134469 , 0-0.5 -0.362 --> 0.000313761 , 0-0.5 -0.324 --> 0.000448229 , 0-0.5 -0.286 --> 0.000851636 , 0-0.5 -0.248 --> 0.00129987 , 0-0.5 -0.21 --> 0.00206186 , 0-0.5 -0.172 --> 0.00345137 , 2.54204e-05-0.5 -0.134 --> 0.00573734 , 7.62612e-05-0.5 -0.096 --> 0.00842671 , 7.62612e-05-0.5 -0.058 --> 0.0125504 , 0.000165233-0.5 -0.02 --> 0.019991 , 0.000241494-0.5 0.018 --> 0.0268489 , 0.000292334-0.5 0.056 --> 0.0431645 , 0.000444857-0.5 0.094 --> 0.0724339 , 0.00067364-0.5 0.132 --> 0.129045 , 0.000877003-0.5 0.17 --> 0.22268 , 0.00114392-0.5 0.208 --> 0.325728 , 0.00142354-0.5 0.246 --> 0.484312 , 0.00180485-0.5 0.284 --> 0.646526 , 0.00218615-0.5 0.322 --> 0.782429 , 0.00284708-0.5 0.36 --> 0.877006 , 0.00348259-0.5 0.398 --> 0.920529 , 0.00414352-0.5 0.436 --> 0.953922 , 0.00546538-0.5 0.474 --> 0.970686 , 0.00704145-0.5 0.512 --> 0.981264 , 0.00889714-0.5 0.55 --> 0.985208 , 0.010702-0.5 0.588 --> 0.990273 , 0.0141083-0.5 0.626 --> 0.994307 , 0.0196754-0.5 0.664 --> 0.996369 , 0.029602-0.5 0.702 --> 0.997624 , 0.0484004-0.5 0.74 --> 0.998117 , 0.0737318-0.5 0.778 --> 0.998969 , 0.12606-0.5 0.816 --> 0.999462 , 0.204075-0.5 0.854 --> 0.999731 , 0.312366-0.5 0.892 --> 0.999866 , 0.443154-0.5 0.93 --> 1 , 0.580347-0.5 0.968 --> 1 , 0.678076-0.5 1.006 --> 1 , 0.787651-0.5 1.044 --> 1 , 0.868577-0.5 1.082 --> 1 , 0.922569-0.5 1.12 --> 1 , 0.955171-0.5 1.158 --> 1 , 0.969877-0.5 1.196 --> 1 , 0.980452-0.5 1.234 --> 1 , 0.986197-0.5 1.272 --> 1 , 0.98973-0.5 1.31 --> 1 , 0.99231-0.5 1.348 --> 1 , 0.994001-0.5 1.386 --> 1 , 0.995653-0.5 1.424 --> 1 , 0.997344-0.5 1.462 --> 1 , 0.998704

  13. 1-D cut efficiency (Normalized N.P.E) 0.2 4.5 --> 0.9987 , 0.997941 0.28 4.5 --> 0.99758 , 0.989018 0.36 4.5 --> 0.99628 , 0.960433 0.44 4.5 --> 0.995204 , 0.917918 0.52 4.5 --> 0.993949 , 0.832607 0.6 4.5 --> 0.993187 , 0.756142 0.68 4.5 --> 0.991439 , 0.647356 0.76 4.5 --> 0.989511 , 0.563634 0.84 4.5 --> 0.986912 , 0.453271 0.92 4.5 --> 0.984536 , 0.365609 1 4.5 --> 0.98104 , 0.255831 1.08 4.5 --> 0.977051 , 0.189967 1.16 4.5 --> 0.972703 , 0.162106 1.24 4.5 --> 0.965755 , 0.137931 1.32 4.5 --> 0.958315 , 0.125437 1.4 4.5 --> 0.944778 , 0.111494 1.48 4.5 --> 0.93039 , 0.102254 1.56 4.5 --> 0.900986 , 0.0903059 1.64 4.5 --> 0.871403 , 0.0817138 1.72 4.5 --> 0.816943 , 0.0725625 1.8 4.5 --> 0.735365 , 0.0641992 1.88 4.5 --> 0.661139 , 0.058988 1.96 4.5 --> 0.549978 , 0.0523152 2.04 4.5 --> 0.466024 , 0.0477649 2.12 4.5 --> 0.358449 , 0.0425283 2.2 4.5 --> 0.287091 , 0.0389567 2.28 4.5 --> 0.206141 , 0.0346861 2.36 4.5 --> 0.161273 , 0.0319534 2.44 4.5 --> 0.110085 , 0.0286996 2.52 4.5 --> 0.0756611 , 0.0259161 2.6 4.5 --> 0.0605558 , 0.0236664 2.68 4.5 --> 0.0445092 , 0.0213277 2.76 4.5 --> 0.0376513 , 0.0196373 2.84 4.5 --> 0.0298521 , 0.0178578 2.92 4.5 --> 0.0262662 , 0.0167139 3 4.5 --> 0.0220081 , 0.0150616 3.08 4.5 --> 0.0193187 , 0.0140448 3.16 4.5 --> 0.0158225 , 0.0126085 3.24 4.5 --> 0.0130435 , 0.0112485 3.32 4.5 --> 0.0115195 , 0.0101682 3.4 4.5 --> 0.009368 , 0.00889714 3.48 4.5 --> 0.00770955 , 0.00813452 3.56 4.5 --> 0.00623039 , 0.00724481 3.64 4.5 --> 0.00551322 , 0.00657117 3.72 4.5 --> 0.00403407 , 0.00574501 3.8 4.5 --> 0.00327208 , 0.00522389 3.88 4.5 --> 0.00251009 , 0.00423249 3.96 4.5 --> 0.00206186 , 0.00355885 4.04 4.5 --> 0.00170327 , 0.00312671 4.12 4.5 --> 0.00125504 , 0.00250391

  14. Circle cut • Center point • M2 : 0.244 [GeV/c2]2 • N.P.E : 2.0 • Radius • M2 : 1.25 [GeV/c2]2

  15. Circle cut M2 : 0 - 2.5 [GeV/c2]2 30 lines

  16. 2-D KID cut efficiency (WC) • Center point • M2 : 0.244 [GeV/c2]2 • N.P.E : 2.5 • Radius • M2 : 0.4 [GeV/c2]2 • N.P.E. : 2.0 Survival Ratio K+ : 98.1% P : 0.6%

  17. Systematic error • How ?

  18. Summary and To do • Summary • Now cut efficiency estimation method ( KID ) • The 1st results (WC , CH2 target) •  Can we use this method ? •  How to estimate the systematic errors ? • To do • Λ cross section • Efficiency • Cut , tracking , trigger • Matrix tuning • Better cut • Water • TSpectrum Background subtraction • Definition of chi-square

  19. END ゴッホの絵がたくさん見れて大満足@ kőln

  20. K+ cut efficiency • K+ survival ratio after • WC NPE cut • AC NPE cut • Mass square cut • Coincidence time cut π+ AC npe sum p K+ π+ WC npe sum p K+ Mass square

  21. K+ survival ratio after AC cut (CH2) looser cut of AC NPE (accut,wccut) = (5,-0.1)pi suv. ratio: 0.0631439+-0.00148976K  suv. ratio: 0.876875+-0.00513167p  suv. ratio: 0.911427+-0.0023794(accut,wccut) = (10,-0.1)pi suv. ratio: 0.105762+-0.0019663K  suv. ratio: 0.931211+-0.00536427p  suv. ratio: 0.94023+-0.00243485(accut,wccut) = (15,-0.1)pi suv. ratio: 0.141455+-0.00231043K  suv. ratio: 0.956913+-0.00547386p  suv. ratio: 0.960014+-0.00247285 p K+ π+ Stricter cut of AC NPE p K+ π+

  22. K+ survival ratio after WC cut (CH2) looser cut of WC NPE (accut,wccut) = (2000,1.1)pi suv. ratio: 0.922368+-0.00752531K  suv. ratio: 0.987653+-0.00566791p  suv. ratio: 0.133889+-0.000701787(accut,wccut) = (2000,1)pi suv. ratio: 0.963952+-0.00777583K  suv. ratio: 0.989093+-0.0056741p  suv. ratio: 0.176933+-0.000821917(accut,wccut) = (2000,0.9)pi suv. ratio: 0.971601+-0.00782181K  suv. ratio: 0.999575+-0.00571909p  suv. ratio: 0.259314+-0.00102927 p K+ π+ Stricter cut of WC NPE K+ p π+

  23. K+ survival ratio after AC, WC cut (52Cr) K+ Increase… ! まぁまぁ K+ π+ p π+ (accut,wccut) = (7,-0.1) pi suv. ratio: 0.065416+-0.000449255 K suv. ratio: 0.586117+-0.00452555 p suv. ratio: 0.651355+-0.00184533 (accut,wccut) = (10,-0.1) pi suv. ratio: 0.0798301+-0.000499635 K suv. ratio: 0.633024+-0.00477219 p suv. ratio: 0.715314+-0.0019709 (accut,wccut) = (12,-0.1) pi suv. ratio: 0.106535+-0.00058428 K suv. ratio: 0.576053+-0.00447227 p suv. ratio: 0.750981+-0.00204033 (accut,wccut) = (2000,1.2) pi suv. ratio: 0.97553+-0.0026548 K suv. ratio: 1.04522+-0.00476197 p suv. ratio: 0.306715+-0.00108176 (accut,wccut) = (2000,1.1) pi suv. ratio: 0.980888+-0.00266569 K suv. ratio: 1.04946+-0.00477655 p suv. ratio: 0.342593+-0.00115887 (accut,wccut) = (2000,1) pi suv. ratio: 0.999912+-0.00270431 K suv. ratio: 1.04956+-0.00477692 p suv. ratio: 0.382421+-0.0012424

  24. Need to improve the fitting WC NPE1+2 > 0.1 Fitting is not going well…. • Pre π+ cut • Cut low and high mom segments separately Stricter cut WC NPE1+2 > 0.4 WC NPE1+2 > 0.6 K+ increase

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