View source for Sep 5, 2019 Calorimeter

''<font color=red>Meeting Time: 11:00 a.m.</font>''

# To join via a Web Browser, go to the page [https://bluejeans.com/907185247] https://bluejeans.com/907185247.
# To join via Polycom room system go to the IP Address: 199.48.152.152 ([http://bjn.vc bjn.vc]) and enter the meeting ID: 907185247.
# To join via phone, use one of the following numbers and the Conference ID: 907185247.
#* US or Canada: +1 408 740 7256 or 
#* US or Canada: +1 888 240 2560
# <font color=blue>Upon connection all microphones are automatically muted.  To unmute your mike on a Polycom or equivalent unit, enter *4.  Unmuting on a computer is trivial as there is a microphone button than can be clicked.</font>
# More information on connecting to [[Connect to the Data Challenge Meetings|bluejeans]] is available.

=Participant Direct Lines=

* JLab Phone in CC L207 is 757-269-7084 (usual room)
* JLab Phone: in CC F326 is 757-269-6460
* Phone in the Regina Video-conference Suite is 306-585-4204
* Athens Phone: in Christina's office is 011-30-210-727-6947

= References =

# FCAL [https://logbooks.jlab.org/book/hdfcal HDFCAL log book]
# BCAL [https://logbooks.jlab.org/book/hdbcal HDBCAL log book]

= Goals for Calorimetry Group =

# Determine preliminary photon reconstruction efficiencies as a function of E, phi and theta in data and  simulation with a point-to-point precision of at least 5%.
# Measure systematics of pi0/eta mass calibration as a function of detector position to a precision of at east 5 MeV.
# Demonstrate agreement of photon reconstruction efficiency and resolution between data and simulation as a function of E, phi and theta to within 5%.

= Action Items =
[[Short term items]]:
# Investigate uniqueness tracking for efficiency calculations in calorimeters (Jon)
# <strike> Contact Shaun to determine selection cuts for the skimming of pi0 data so that he can match that with the BGGEN sample (Karthik) </strike> Karthik found a bug in code in coordination with Sean.
# Complete [https://halldweb.jlab.org/wiki-private/index.php/2018_Work_Packages#Calorimetry Calorimeter work packages]

[[Long term items]]:
# From Mike's work: -cos(phi) type dependence in the data and a phi dependence at the downstream end of the bcal. See [[Sep 21, 2017 Calorimeter]] Meeting.
# FCAL: It has been noticed that the pi0 mass shifts when the LED pulser runs at high rate. This is still not understood. See [https://logbooks.jlab.org/entry/3595928 Log Entry 3595928] and references.  Several runs have been taken in raw mode.  These runs exhibit the shift in pi0 mass with LED running at 1 kHz.  There is a need to analyze these to try to determine the cause:
##50634 - FCAL Green LED: 1kHz, 29 V, Livetime is 9%, 1.7 M events
##50635 - FCAL Violet LED: 1kHz, 22 V, Livetime is 9%, 1.4 M events
##50636 - FCAL Blue LED: 1kHz, 15 V, Livetime is 9%, 1.5 M events

= Tentative Agenda =
 
# Announcements
# Action Items

# Run Updates
## FCAL
## BCAL
# Calibrations
# Monitoring
## LED Monitoring Update [[File:Sep5_LEDupdate.pdf]]
# Efficiencies
# Simulations
# BCAL Deep Learning
# NIM articles
#* GlueX detector
#* [https://mailman.jlab.org/mailman/private/gluex-collaboration/2019-August/005278.html link]
# Any other business

= Minutes =
''Attending: Elton, Jon, Colin, Mark (JLab); Teagan, Karthik, Ahmed, Zisis, Varun (UofR); Matt (IU); Churamani, Tolga (FIU); Christina, George (Athens); Sean (FSU).

# Run Updates
## FCAL
## BCAL
# Calibrations
# Monitoring
## LED Monitoring Update [[File:Sep5_LEDupdate.pdf]]
# Efficiencies
# Simulations
# BCAL Deep Learning
# NIM articles
#* GlueX detector
#* [https://mailman.jlab.org/mailman/private/gluex-collaboration/2019-August/005278.html link]
# Any other business