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Run12 pp 200GeV high multiplicity trigger: Pt distribution

Motivation:

Is there more jet in high multiplicity?
Is mean pt higher in high multiplicity? 

Dataset:

run 12 pp 200GeV

Comparison KFParticle vs. Helix swimming for secondary vertex reconstruction

Simulation :

D0 Reconstruction comparing Helix Swimming (HS) and KFParticle (KF)

About 62M events within |Vz|<6cm from official production.

Common cuts
pT1>1.2, pT2>1.2 GeV/c

Hijing + HF simulations

 I have provided template code used to produce D0's in a hijing background, the files can be located in:

/star/institutions/lbl/mlomnitz/HijinSimuTemplate

Asymmetry Update

Basic Asymmetries: More Statistics (10-15 pb^(-1))

Invariant Mass Distributions - Trigger separated

hirg_meeting_0402

 

APS talk - Landry

 

Run-12 W+/W- Cross Section Ratios Preliminary Request for DIS 2015

posik-PrelimRequest-03272015.pdf: Presents the Money plot and preliminary results.

Spin Meeting Update - April 9, 2015