RHIC-PHENIX 200GeV-

RHIC-PHENIX 200GeV- PowerPoint PPT Presentation


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Maya SHIMOMURA. 2. ??????????????(QGP)??. ??????????????????????????????????????????0.8fm ????2.14f????????????0.15?/f? ?1?????6.67f?. . ??????QGP????. ???????????????????????????????????????????????????????????????(RHIC)???????. ??????????????????????(QGP)????. ?????????????5~10??????????????????

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RHIC-PHENIX 200GeV-

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1. RHIC-PHENIX?????? 200GeV?-????? ?????????????? ????????? ?? ?? pTpT

2. Maya SHIMOMURA 2 ?????????????(QGP)?? ?????????????????????? ??????p????????????????????????????????????? ??????p???????????????

3. Maya SHIMOMURA 3 ?RHIC (Relativistic Heavy Ion Collider) RHIC(???)-PHENIX(???)

4. Maya SHIMOMURA 4 ?????? PHENIX?????????????????????(4~5GeV??)?????????????????????????????? ???????????????????????? ????????????????????????????????????? ?????????????

5. Maya SHIMOMURA 5 ??? ????????????????????????????????????????????????????????????????????????????? pT[GeV]=1/(21.5a[radian]) ???????P?????????????????????????????????????????????????????????????????????????????????????? pT[GeV]=1/(21.5a[radian]) ???????P?????????

6. Maya SHIMOMURA 6 ??????

7. Maya SHIMOMURA 7 ?????????? ??????????????????? ???????????????????

8. Maya SHIMOMURA 8 ?????????????????????? ???????????????????????????? 2GeV Kon DC220cm 45% 100cm 20% ???25% 8GeV?????????? ()???ct??[cm] Conversion(60%) decay(40%) p? K??p K0L?p+?p-?+?- K0S?p+?p-? ??????(7.9)?S(0)?S+(2.4)??0(8.7)??-(4.9)?p?p+ 2GeV Kon DC220cm 45% 100cm 20% ???25% 8GeV?????????? ()???ct??[cm] Conversion(60%) decay(40%) p? K??p K0L?p+?p-?+?- K0S?p+?p-? ??????(7.9)?S(0)?S+(2.4)??0(8.7)??-(4.9)?p?p+

9. Maya SHIMOMURA 9 ????????????

10. Maya SHIMOMURA 10 ?????? ????????? ?????????????????????????????dphi dz ???????????????? Fitting function ?????? Fitting function s(pT)=p0(exp(-pT/p1) )+p2 ????W????????????????????????? ?????????????????????????????dphi dz ???????????????? Fitting function ?????? Fitting function s(pT)=p0(exp(-pT/p1) )+p2 ????W????????????????

11. Maya SHIMOMURA 11 ? ???????????????????? ? DC????????????????????? Double Gaussian Fit ???????????300MEV ???????? ?(2???????????????s?????????????????????s??????Fit???) ???????????300MEV ???????? ?(2???????????????s?????????????????????s??????Fit???)

12. Maya SHIMOMURA 12 E/p Cut ???????????????? ????????????????500GEV????????????????500GEV

13. Maya SHIMOMURA 13 ???????? ??????????????????? ?? ???? ???????? ???????????? PISA?????????????????????????? 1/Nevt 1/2p 1/pT dN^2/dpTd?[GeV/c]^(-2) ????????????acceptance????????PISA???????????????????????????????? 1/Nevt 1/2p 1/pT dN^2/dpTd?[GeV/c]^(-2) vs pT PISA?????????????????????????? 1/Nevt 1/2p 1/pT dN^2/dpTd?[GeV/c]^(-2) ????????????acceptance????????PISA???????????????????????????????? 1/Nevt 1/2p 1/pT dN^2/dpTd?[GeV/c]^(-2) vs pT

14. Maya SHIMOMURA 14 ??1.p???? 1/[2\pi p_{T}N_{evt}] d^{2}N^{\pi^{0}}/dp_{T}dy (GeV/c)^{-2} p?????1/[2\pi p_{T}N_{evt}] d^{2}N^{\pi^{0}}/dp_{T}dy (GeV/c)^{-2} p?????

15. Maya SHIMOMURA 15 ??2.Centrality??? Double Gaussian Fit

16. Maya SHIMOMURA 16 summary ?????????????????2??????????????

17. Maya SHIMOMURA 17 ????? ?????????????????????????????????????? ??????Run4(???)???????????????? Aerogel Detector??????????????p?K?p?????????????pt??????? ??????????????????????????????????????????????????????????????????????????

18. Back up slide

19. Maya SHIMOMURA 19 Double Gaussian Fit ???

20. Maya SHIMOMURA 20 W Gaussian ????

21. Maya SHIMOMURA 21 E/p cut ????

22. Maya SHIMOMURA 22 E/p cut ??? E/p>0.3~0.4???????????

23. Maya SHIMOMURA 23 E/p cut ????z-flip

24. Maya SHIMOMURA 24 ???????????

25. Maya SHIMOMURA 25

26. Maya SHIMOMURA 26 Published paper ????

27. Maya SHIMOMURA 27 Centrality 60 or70 93%

28. Maya SHIMOMURA 28 ??high pT?

29. Maya SHIMOMURA 29 Au +Au 200GeV

30. Maya SHIMOMURA 30 ????????

31. Maya SHIMOMURA 31 ????? 1.EMCal ?response ????? *???????????????????????????????????????????????????? ???????????????????????? 2.p?????? *p0 ? ??? ?N ? e+ e N* p ? , ? e p+ ? + , + ? e *p ????t=2.610**-8 [sec](?7.8m) t=2.210**-6 [sec] p0 t= 10**-16 [sec] 3.Dalitz decay p0???*(effective(?????????) ?mass???photon) ?*?e+e- ???

32. Maya SHIMOMURA 32 Tracking Reconstruction Z?????phi??????????? ?????????????Z?????phi??????????? ?????????????

33. Maya SHIMOMURA 33 ?????????????????????? ???????????????????????????? ()???ct??[cm] Conversion(60%) decay(40%) p? K??p K0L?p+?p-?+?- K0S?p+?p-? ??????(7.9)?S(0)?S+(2.4)??0(8.7)??-(4.9)?p?p+ ()???ct??[cm] Conversion(60%) decay(40%) p? K??p K0L?p+?p-?+?- K0S?p+?p-? ??????(7.9)?S(0)?S+(2.4)??0(8.7)??-(4.9)?p?p+

34. Maya SHIMOMURA 34 ?? (??) ????????dz?dphi????s????????????????????????????????????????????s???????????????????????????????????(~3GeV)?????????????????????????????Z-Flip??????????????????????????????s?Pt????????????????step ?0.2GeV ? ?????????????????????????????dphi dz ???????????????? Fitting function ?????? Fitting function s(pT)=p0(exp(-pT/p1) )+p2 ????W?????????????????????????????????????????????dphi dz ???????????????? Fitting function ?????? Fitting function s(pT)=p0(exp(-pT/p1) )+p2 ????W????????????????

35. Maya SHIMOMURA 35 5-10GeV

36. Maya SHIMOMURA 36 E/p cut

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