- genevb's home page
- Posts
- 2024
- 2023
- 2022
- September (1)
- 2021
- 2020
- 2019
- December (1)
- October (4)
- September (2)
- August (6)
- July (1)
- June (2)
- May (4)
- April (2)
- March (3)
- February (3)
- 2018
- 2017
- December (1)
- October (3)
- September (1)
- August (1)
- July (2)
- June (2)
- April (2)
- March (2)
- February (1)
- 2016
- November (2)
- September (1)
- August (2)
- July (1)
- June (2)
- May (2)
- April (1)
- March (5)
- February (2)
- January (1)
- 2015
- December (1)
- October (1)
- September (2)
- June (1)
- May (2)
- April (2)
- March (3)
- February (1)
- January (3)
- 2014
- December (2)
- October (2)
- September (2)
- August (3)
- July (2)
- June (2)
- May (2)
- April (9)
- March (2)
- February (2)
- January (1)
- 2013
- December (5)
- October (3)
- September (3)
- August (1)
- July (1)
- May (4)
- April (4)
- March (7)
- February (1)
- January (2)
- 2012
- December (2)
- November (6)
- October (2)
- September (3)
- August (7)
- July (2)
- June (1)
- May (3)
- April (1)
- March (2)
- February (1)
- 2011
- November (1)
- October (1)
- September (4)
- August (2)
- July (4)
- June (3)
- May (4)
- April (9)
- March (5)
- February (6)
- January (3)
- 2010
- December (3)
- November (6)
- October (3)
- September (1)
- August (5)
- July (1)
- June (4)
- May (1)
- April (2)
- March (2)
- February (4)
- January (2)
- 2009
- November (1)
- October (2)
- September (6)
- August (4)
- July (4)
- June (3)
- May (5)
- April (5)
- March (3)
- February (1)
- 2008
- 2005
- October (1)
- My blog
- Post new blog entry
- All blogs
Calibration status update for Run 14 AuAu datasets
Updated on Wed, 2014-12-17 00:52. Originally created by genevb on 2014-12-17 00:24.
-Gene
- 14.6 GeV AuAu
- ~4 million events, sampling every production run with the st_hltgood file stream, were produced last week using the latest TPC SpaceCharge & GridLeak calibration (see M. Posik's presentation today)
- Any feedback from QA of this sample is welcome (PWGs informed last week of its availability)
- My own simple QA of DCA distributions is shown as a comment on this page
- This sample is being used for the TPC dE/dx calibration
- This sample is being used for the TOF calibrations
- This sample is being used for the BTOW status table determination
- Preferred methods for status tables (L2, emc-check runs) were not recorded during AuAu15; looking at physics files is the tertiary option
- Low energy collisions do not provide a lot of energetic BTOW hits statistics, so this method is not as robust (lesson learned for next heavy ion running)
- Any feedback from QA of this sample is welcome (PWGs informed last week of its availability)
- TPC hit errors remain to be done (needs ~2 days)
- ~4 million events, sampling every production run with the st_hltgood file stream, were produced last week using the latest TPC SpaceCharge & GridLeak calibration (see M. Posik's presentation today)
- 200 GeV AuAu
- BTOW status table determination in progress (L2 data available)
- TPC Alignment is currently the critical item
- You do not have access to view this node
- New alignment calibration involved use of low luminosity data, which introduced dependence on the TPC SpaceCharge & GridLeak calibration
- SC & GL calibration used was preliminary, using limited data
- TPC group is actively trying to improve on this (see M. Posik's presentation today)
- Inclusion of HFT in tracking has conflicts with the old TPC alignment (e.g. an unjustified global shift in the old alignment causes the PXL to cross, unphysically, inside the beampipe)
- We will need to move forward with whatever new TPC alignment is avaialable in January
- New alignment implies re-starting tracking-related calibrations: TPC drift velocities, ...
- Sector-by-sector TPC GridLeak needs to be finalized (You do not have access to view this node via other high luminosity datasets)
- ...and the rest of the usual calibrations (TOF, TPC dE/dx, hit errors [though new for HFT])
-Gene
»
- genevb's blog
- Login or register to post comments