Cluster charge distribution p p
This presentation is the property of its rightful owner.
Sponsored Links
1 / 10

Cluster Charge distribution(p+p) PowerPoint PPT Presentation


  • 54 Views
  • Uploaded on
  • Presentation posted in: General

Cluster Charge distribution(p+p). Use two samples : Hiroki's dimuon sample & ZeroFiled Run(36597,40321,40322) ClustData2 ntuple is used : a cut is applied to get real track stubs( a same cut is applied to all plots in this slide)

Download Presentation

Cluster Charge distribution(p+p)

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Cluster charge distribution p p

Cluster Charge distribution(p+p)

  • Use two samples : Hiroki's dimuon sample & ZeroFiled Run(36597,40321,40322)

  • ClustData2 ntuple is used : a cut is applied to get real track stubs( a same cut is applied to all plots in this slide)

  • Show “Cluster width distribution” and “Landau peak values” for all clusters with the cut

  • Show “Cluster width distribution” and “Landau peak values” for 2 and 3 strip cluster with the cut

  • Results


Applied cut to get real track stubs

Applied Cut to get real track stubs

  • Cut ( ClustData2 ntuple )

  • bbcvert>-1000

  • (lastpl==4) (roadhits>=9 ) && (nroads==1||nroads==2)

  • one hit per plane

  • |atan(dx/dz)|<0.17 &&|atan(dy/dz)|<0.17


Cluster charge distribution p p

Cluster width Distribution & Landau Peak value( I )

Slide6

Slide7 and 8

Pla0(ST1)

Pla1(ST1)

Pla3(ST1)

Pla2(ST1)

Red : Dimuon sample

Blue : ZeroField

Count

Pla6(ST2)

Pla4(ST1)

Pla5(ST1)

Pla12(ST3)

Cluster width

  • All clusters after the following cut

  • Error bar : sigma from Landau fitting

  • Cut ( ClustData2 ntuple ) : no cluster width cut

    (bbcvert>-1000) && (lastpl==4) && (roadhits>=9 ) && (nroads==1||nroads==2) && (nhits1<=1 && nhits2<=1 && nhits3<=1 && nhits4<=1 && nhits5<=1 &&

    nhits6<=1 )&&(abs(atan(pf2))<0.17&&abs(atan(pf4))<0.17) )


Landau peak vs plane w r t cluster width ii

Landau peak vs Plane # w.r.t cluster width(II)

Slide10

Slide9

Blue : cluster width = 3

Red : cluster width = 2

Blue : cluster width = 3

Red : cluster width = 2

Hiroki's Dimuon Sample

Zero Field

  • 2 and 3 strip clusters after the following cut

  • Error bar : sigma from Landau fitting

  • Cut ( ClustData2 ntuple )

    (bbcvert>-1000) && (lastpl==4) && (roadhits>=9 ) && (nroads==1||nroads==2) && (nhits1<=1 && nhits2<=1 && nhits3<=1 && nhits4<=1 && nhits5<=1 &&

    nhits6<=1 )&&(abs(atan(pf2))<0.17&&abs(atan(pf4))<0.17) )


Results

Results

  • A cut was applied to get real tracks stubs from ClustData2 ntuples

  • 2 strips clusters are dominant compared with 3 strips clusters

  • The gain in Station 3 is lower than the other stations

  • Landau peak values varies with regard to cluster width(2,3), those for 3 strip clusters are a little higher in ST1 and ST3, however much higher in ST2

  • What is going on (?)

  • See the detail informations (Backup slides)(from slide6)


Cluster width distribution

Cluster width distribution

Zero Field

Hiroki's Dimuon Sample


Cluster charge i landau peak dimuon sample

Cluster Charge(I) & Landau peak : Dimuon Sample

( (bbcvert>-1000) && (lastpl==4) && (roadhits>=9 ) && (nroads==1||nroads==2) && (nhits1<=1 && nhits2<=1 && nhits3<=1 && nhits4<=1 && nhits5<=1 &&

nhits6<=1 )&&(abs(atan(pf2))<0.17&&abs(atan(pf4))<0.17) )

No cluster width cut


Cluster charge distribution p p

Cluster Charge(I) & Landau peak: ZeroField

( (bbcvert>-1000) && (lastpl==4) && (roadhits>=9 ) && (nroads==1||nroads==2) && (nhits1<=1 && nhits2<=1 && nhits3<=1 && nhits4<=1 && nhits5<=1 &&

nhits6<=1 )&&(abs(atan(pf2))<0.17&&abs(atan(pf4))<0.17) )

No cluster width cut


Cluster charge ii dimuon sample

Cluster charge (II) : Dimuon sample

Cluster width = 3

Cluster width = 2


Cluster charge distribution p p

Cluster charge (II) : Zero Field Run

Cluster width = 2

Cluster width = 3


  • Login