[Halld-cpp] Issues with simulated data
Ilya Larin
ilarin at jlab.org
Mon Jul 1 11:21:41 EDT 2024
In this case investigating a few events and comparing thrown energies and coordinates with the reconstructed ones would shade some light on the issue. Ilya
________________________________
From: Igal Jaegle <ijaegle at jlab.org>
Sent: Monday, July 1, 2024 11:11
To: Ilya Larin <ilarin at jlab.org>; halld-cpp at jlab.org <halld-cpp at jlab.org>
Subject: Re: Issues with simulated data
[cid:7fe196a6-07f2-4e62-bca3-31644a967397]
In principle not, see above the correct URL is loaded.
tks ig.
________________________________
From: Ilya Larin <ilarin at jlab.org>
Sent: Monday, July 1, 2024 11:06 AM
To: Igal Jaegle <ijaegle at jlab.org>; halld-cpp at jlab.org <halld-cpp at jlab.org>
Subject: Re: Issues with simulated data
Hi Igal, there is a chance that in the MC the wrong target position has been set. Ilya
________________________________
From: Igal Jaegle <ijaegle at jlab.org>
Sent: Monday, July 1, 2024 10:59
To: Ilya Larin <ilarin at jlab.org>; halld-cpp at jlab.org <halld-cpp at jlab.org>
Subject: Re: Issues with simulated data
Sure.
[cid:51acc2ac-06a3-45eb-8adb-9916fffd095a]
________________________________
From: Ilya Larin <ilarin at jlab.org>
Sent: Monday, July 1, 2024 10:53 AM
To: halld-cpp at jlab.org <halld-cpp at jlab.org>; Igal Jaegle <ijaegle at jlab.org>
Subject: Re: Issues with simulated data
Hi Igal,
would you share inv. mass plots with the peaks at wrong position.
Thank you.
Ilya
________________________________
From: Halld-cpp <halld-cpp-bounces at jlab.org> on behalf of Igal Jaegle via Halld-cpp <halld-cpp at jlab.org>
Sent: Monday, July 1, 2024 9:21
To: halld-cpp at jlab.org <halld-cpp at jlab.org>
Subject: [Halld-cpp] Issues with simulated data
Good morning, CPP/NPPeurs,
I simulated Primakoff photoproduction of pi^0 & eta off Lead nucleus and encountered several issues.
1/ Beam photon list is empty for most of the runs
2/ Diphoton invariant mass for pi^0 & eta candidates peaking at the wrong mass.
It will help me if I am getting any feedback from any of you. Was this notice? Was is already solved? How?
These are my jana options:
NTHREADS 12
TRKFIT:HYPOTHESES 2,3,8,9,11,12,14,15
KALMAN:ADD_VERTEX_POINT 1 # add upstream vertex point
PID:ADD_FCAL_DATA_FOR_CPP 1 # add FCal related quantities to REST
MONITOR:MIN_TRACKING_FOM 1e-10
MATCHING:IGNORE_START_COUNTER 1
BCAL_TDC_Timing:DONT_USE_SC 1
MCTHROWN:TAGCHECK 1
JANA_CALIB_CONTEXT variation=mc
tks ig.
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