TMVA results

 

FCS phi-acceptance impact on asymmetry extraction

Speaker : Huanzhao Liu ( Indiana University CEEM )


Talk time : 10:30, Duration : 00:20

 

D0 Hijing check for the misMatch tracks

 

Run Meeting Slides

BBC Singles Studies

BBC Singles trigger runs 19086049 (Ru) and 19089027 (Zr)

Observations:

Al+Au FXT 4.9 GeV 2015 Pion Spectra and dN/dy status update

Speaker : Todd Kinghorn ( UC Davis )


Talk time : 10:40, Duration : 00:20

Update on UPC J/psi in run 14

Speaker : Jaroslav Adam ( Creighton University )


Talk time : 10:20, Duration : 00:20

Trigger Board Meeting for Run18

2018-04-02 13:00
America/New York
Monday, 2 April 2018
BNL Physics 1-224 and Bluejeans 818117372, at 17:00 (GMT), duration : 00:00
- run status,  goal, progress
- Ru/Zr running condition optimization, need to be done
- AoB

Ayeh_APS_April

 

Period Coordinator

 1. Hypernews: 
STAR operation (http://www.star.bnl.gov/HyperNews-star/protected/get/starops.html)

Update on r0 photoproduction and the Q2 evolution of the shape of gold nuclei

Speaker : Spencer Klein ( LBNL )


Talk time : 10:00, Duration : 00:20

Using starsim to simulate the BBbar->ee background

One of the residual backgrounds in the di-electron mass spectrum in Upsilon analyses are electron-positron pairs from semi-leptonic decays of B mesons.

Systematic study on the volume fluctuation correction on cumulants at 19.6 GeV

 

DIS 2018 W pressentation

DIS 2018 W presentation:

A_LL with new polarization values

The mean of the Landau distribution is undefined

One hears that the mean of the Landau distribution is undefined.  Hey, if it says so on Wikipedia, it must be right!

HF minutes - 2018/03/29

La_c/aLa_c in Hijing+zerobias with HFT run16

Request TypeSimulated background embedding (generator with real data as background for noise / pile-up studies)
Description

Embedding of La_c and anti-La_c into zerobias events + Hijing for efficiency corrections which include effects of vertex resolutions - run 16

Particle:
Lc+, Lc- Embedd into HIJING
Library: SL16j
Production chain: Official P16ij production chain + simulators

event:
VzTpc :(-6, 6) cm.

(a)La_c distribution:
Phi : (0, 6.29) in radian flat
Rapidity: (-1.2, 1.2) flat
pT:(2, 8) GeV ,  weighted
    weight function f(x) = “1.0/([0]+[1]*tanh([2]*x-[3]))
    parameters (0,1,2,3) = (0.5,0.5,0.6,2)

number of events vs Hijing centrality classes:

Centrality     HIJING b(fm)  #Events  #La_c(aLa_c)/Event

70-80%         12.86                2M             1

60-70%         11.95                1M             2

50-60%     11.05-11.08       660K          3

40-50%     10.11-10.16      340K           6

30-40%          9.0-9.2          225K           9

20-30%          7.8-8.2          170K          12

10-20%          4.5-7.8          125K          16

0-10%               0-4.5           100K          20

 

original request of the authors:
https://drupal.star.bnl.gov/STAR/system/files/Embedding_requestLc_pwg.pdf (page 1,2)

General Information
Request ID20181304
Priority: EC0
Priority: pwgHigh
StatusNew
Physics Working GroupHeavy Flavor
Requested bypetrchal
Contact email(s)petrchal@rcf.rhic.bnl.gov, skradhakrishnan@lbl.gov
Contact phone(s)
PWG email(s)heavy-hn@www.star.bnl.gov
Assigned Deputy: Not assigned
Assigned Helper: Not assigned
Global Simulation Settings
Request type:Simulated background embedding (generator with real data as background for noise / pile-up studies)
Number of events4600000 = 4.6 M
Magnetic Field---- SELECT MAGFIELD ----
Collision Type---- SELECT COLLISION TYPE ----
Centralityb: full range
BFC tags
ProductionP16ij
Geometry: simu---- SELECT GEOMETRY ----
Geometry: reco---- SELECT GEOMETRY ----
Library---- SELECT STAR LIBRARY ----
Vertex option---- SELECT VERTEX OPTION ----
Pileup optionNo
Detector Set
Data Sources
Real Data
File lookup
Single Particle MC
ParticleLambda
Particle settingsdalitz
Particles per event1
Vertex Z, cm-30 < Vertex < 30
Gaussian sigma in X,Y,Z (cm), if applicable0, 0, 0
Vertex offset: x, mm0
Vertex offset: y, mm0
Φ (phi), radian0 < Φ < 6.29
η (eta)-1.2 < η < 1.2
Pt, GeV2 < Pt < 8

Conveener S&C exchange

Speaker : Jerome Lauret ( BNL )


Talk time : 09:30, Duration : 00:20

La_c/aLa_c in Hijing + zerobian with HFT run14

Request TypeSimulated background embedding (generator with real data as background for noise / pile-up studies)
DescriptionEmbedding of La_c and anti-La_c into zerobias events + Hijing for efficiency corrections which include effects of vertex resolutions for run14

Particle:
Lc+, Lc- Embedd into HIJING
Library: SL16d
Production chain: Official P16id production chain + simulators

event:
VzTpc :(-6, 6) cm.

(a)La_c  distribution:
Phi : (0, 6.29) in radian flat
Rapidity: (-1.2, 1.2) flat
pT:(2, 8) GeV ,  weighted
    weight function f(x) = “1.0/([0]+[1]*tanh([2]*x-[3]))
    parameters (0,1,2,3) = (0.5,0.5,0.6,2)

number of events vs Hijing centrality classes:

Centrality     HIJING b(fm)  #Events  #La_c(aLa_c)/Event

70-80%         12.86                2M             1

60-70%         11.95                1M             2

50-60%     11.05-11.08       660K          3

40-50%     10.11-10.16      340K           6

30-40%          9.0-9.2          225K           9

20-30%          7.8-8.2          170K          12

10-20%          4.5-7.8          125K          16

0-10%               0-4.5           100K          20

 


original request of the authors:
https://drupal.star.bnl.gov/STAR/system/files/Embedding_requestLc_pwg.pdf (page 1,2)
General Information
Request ID20181303
Priority: EC0
Priority: pwgHigh
StatusNew
Physics Working GroupHeavy Flavor
Requested bypetrchal
Contact email(s)petrchal@rcf.rhic.bnl.gov, skradhakrishnan@lbl.gov
Contact phone(s)
PWG email(s)heavy-hn@www.star.bnl.gov
Assigned Deputy: Not assigned
Assigned Helper: Not assigned
Global Simulation Settings
Request type:Simulated background embedding (generator with real data as background for noise / pile-up studies)
Number of events4600000 = 4.6 M
Magnetic Field---- SELECT MAGFIELD ----
Collision Typeauau 200GeV
Centralityb: full range
BFC tags
ProductionP16id
Geometry: simu---- SELECT GEOMETRY ----
Geometry: reco---- SELECT GEOMETRY ----
LibrarySL16d
Vertex option---- SELECT VERTEX OPTION ----
Pileup optionNo
Detector Set
Data Sources
Real Data
File lookup
Single Particle MC
ParticleLambda
Particle settingsdalitz
Particles per event1
Vertex Z, cm-6 < Vertex < 6
Gaussian sigma in X,Y,Z (cm), if applicable0, 0, 0
Vertex offset: x, mm0
Vertex offset: y, mm0
Φ (phi), radian0 < Φ < 6.29
η (eta)-1.2 < η < 1.2
Pt, GeV2 < Pt < 8