MC meeting

Monday 22 Jan 2024, 14:00 → 16:00 Europe/Zurich

14:00 → 14:20 MC critical problems on Workshop on Critical Problems

Speakers: Maja Mackowiak-Pawlowska (Warsaw University of Technology (PL)), Mr Yehor Bondar (Jan Kochanowski University (PL))

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Presentation:

• General intro to MC (Legacy, Geant4 Luminance + external event generators, Wrapped Legacy Reconstruction ) <- Take slides from Yoshikazu or from SHINE autumn school 2020
• Intro to Problems: Geometry
• TPC geometry, where chamber positions are taken, (Bartosz M. and Antoni)
• Other parts: MRPC: mrpc branch in SHINE (Aizat), TPC, PSD (Sergey), VD(Pawel, Ivan), GasBags
• Intro to Problems: Response
• for TPC: ExB drift, E drift, TPCLinearElectronDriftSG, ExBCloudPropagatorSG, TPCElectronCloudPropertiesSG, TPCResponseSimulatorSG
• Other parts: PSD, VD

How do we vary these parameters for 2022+ data? At the MC Meeting on 4.12.23, we compared 2023 and 2016 data, and the short observation is:
VTPC: TSlices inc. 3->4, Npads comparable, peak MaxADC decreased x2, peak Charge decreased from 200 to ~150
MTPC: TSlices inc. 3->5, Npads comparable, peak MaxADC decreased from ~60 to ~50,  peak Charge comparable

14:20 → 14:30 Choice of MC tracks

Speaker: Uzair Shah (Jan Kochanowski University (PL))

14:30 → 14:40 New Xe+La MC production

Speaker: Oleksandra Panova (Jan Kochanowski University (PL))

14:40 → 14:50 MC p+p production

Speaker: Yehor Bondar (Jan Kochanowski University (PL))

v1r21p3_physQA.pdf

Distibution of Primary (Fitted) Vertex in REC shows high peak at z=-505 cm, 
the problem we faced once already, but in some v1r21p0 production this thing disappeared once

14:50 → 15:00 PbPb MC Production

Speaker: Mr Yehor Bondar (Jan Kochanowski University (PL))

Pb_Pb_30_16_Luminance.EPOS_053_v1r21p2_QA.QAHistograms.pdf

Pb_Pb_30_16_Luminance.EPOS_053_v1r21p2_QA.TPCClusterQA.pdf

redoing bad files in PbPb30, expect ~16M
1M in PbPb13 and PbPb150 min bias for Andrey Seryakov is not enough,
he is asking for more central events.
solution: run +9M PbPb13 min bias,  (some) central PbPb150 (then delete it once). 

15:00 → 15:10 PSD in PbPb

Speakers: Andrey Seryakov (St Petersburg State University (RU)), Sergey Morozov (Russian Academy of Sciences (RU))

15:10 → 15:15 Services and files

Speakers: Bartosz Maksiak (National Centre for Nuclear Research (PL)), Maja Mackowiak-Pawlowska (Warsaw University of Technology (PL))

15:15 → 15:20 AOB

Speakers: Andrey Seryakov (St Petersburg State University (RU)), Brant T Rumberger (University of Colorado Boulder (US)), Daria Prokhorova (St Petersburg State University (RU)), Evgeny Andronov (St Petersburg State University (RU)), Jakub Piotr Wlodarczyk (Warsaw University of Technology (PL)), Justyna Monika Cybowska (Warsaw University of Technology (PL)), Maja Mackowiak-Pawlowska (Warsaw University of Technology (PL)), Dr Marcin Michal Bielewicz (National Centre for Nuclear Research (PL)), Mr Yehor Bondar (Jan Kochanowski University (PL))

Running PbPb13 and 150 sim under  v1r21p3/x64_86-el9-gcc12-opt was successful, but after running 32bit ShineOffline for reconstruction shows this:

Fatal in <TROOT::InitSystem>: HOME directory not set
Fix this by defining the HOME shell variable

 *** Break *** segmentation violation
/pool/condor/dir_1396862/runSimulation.sh: line 59:  1486 Segmentation fault      (core dumped) ShineOffline

• still shows 20GB memory usage in log file
• ~few weeks ago there was no such a problem on el9