T0 EventPlane study
description
Transcript of T0 EventPlane study
![Page 1: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/1.jpg)
T0 EventPlane study
2013. 2. 5.Ko-ALICE MeetingMyunggeun Song
![Page 2: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/2.jpg)
T0 config ( z= 373cm , -65 cm )
![Page 3: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/3.jpg)
Multiplicity over All events from AMPT
![Page 4: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/4.jpg)
True RP A-C side
• True RP : use all tracks in |eta| > 1 from AMTP
![Page 5: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/5.jpg)
True RP Aside
![Page 6: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/6.jpg)
True RP Cside
![Page 7: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/7.jpg)
8Sector MethodMerge cells into colored 8 sectors.Evaluate EP with those 8 sectors.
Problem : Geometrical mean phi of sector is being used.( No consideration on Geometrical asymmetry and multiplicity in each cells )
Even weighted phi will not have geometrical symmetry.
![Page 8: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/8.jpg)
8Sector method Aside
![Page 9: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/9.jpg)
8Sector method Cside
![Page 10: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/10.jpg)
True RP A – All sector A
• All Sector : – Use All cells to Evaluate Event plane– No correction
![Page 11: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/11.jpg)
All Sector Aside
Modulation in Psi distribution.Be able to be expected analytically
However, Good resolution and no better idea yet
![Page 12: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/12.jpg)
True RP C – All sector C
![Page 13: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/13.jpg)
All Sector Cside
![Page 14: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/14.jpg)
All Sector Cside
![Page 15: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/15.jpg)
All sector A – All sector C
![Page 16: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/16.jpg)
Resolution
• TrueRP A & TruRP C = 0.7523 ( 0.867 )• TrueRP A & AllSector A = 0.5437• TrueRP C & AllSector C = 0.7475• AllSector A & AllSector C = 0.3469 ( 0.589 )
![Page 17: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/17.jpg)
Summary
• With AllSector method, resolution can be reached to 0.8(Cside) 0.6(Aside), 0.9(Full)– Not BAD!!
• Some other idea,– More Analytical development – Cut some cells which are at the outside of ideal
circle and phi equalize for the circle.
![Page 18: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/18.jpg)
Further study
![Page 19: T0 EventPlane study](https://reader035.fdocuments.us/reader035/viewer/2022062500/56814f92550346895dbd4ebb/html5/thumbnails/19.jpg)
Further study