TRD-2D weekly

Tuesday 6 Dec 2022, 09:00 → 10:20 Europe/Bucharest

Conference room Building A (DFH)

Alexandru Bercuci (IFIN-HH)

  Weekly reports on local activities done for the TRD-2D project of the CBM collaboration.

Meeting Access Information

• Meeting ID: 826 8725 7222

• Passcode: 723781

• Direct Link : https://us02web.zoom.us/j/82687257222

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1 TRD2D in CBM

• last on mCBM data analysis
• last on CBM simulations

Speaker: Alexandru Bercuci (IFIN-HH)

allinfos.eps

TRD2D alignment mCBM

Hi Alex,

I am writing you on behalf of Pavish from the RICH group who is working on improving the matching of RICH rings to tracks. As you might know there are still quite some rings falsely matched to hadron (mostly pion or proton) tracks which make them very difficult to reject with PID cuts in the analysis. Many of these rings stem from conversion electrons which often are produced in/behind the STS and therefore are not tracked in the global tracking.
Pavishs idea was now to make use of the TRD tracking: If the conversion electrons fly through the TRD and are tracked one could extrapolate the TRD track to the RICH plane and possibly match the ring to the track which is closest, regardless of weather it has an STS track or not.

For this, he asked for information about the TRD tracking. Is there some documentation about this? Do I understand it correctly that we first combine TRD hits to TRD tracks which are then matched to STS tracks?

Kind regards and a nice weekend
Adrian

PS: I hope if formulated your questions correctly Pavish, feel free to specify
 

 

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Hi Alex,

Many thanks for the mail, and to you too Adrian for the forward.

It is good to hear that secondary electron tracking using TRD was under swing.

I have attached a figure, which might show the impact of secondary particles in macro numbers.

As a first step what I do hope to learn is the the following in the "current setup",
1. Hits - cluster processing in TRD.
2. STS-TRD matching.

Just to get an idea of possible use of extrapolated electron tracks to rich mirror (or entrance),
to make ring pair elimination.
I do not have complete thing worked out. All in all "Just asking" .
I think Christian will mail so that we TRD + RICH could have a group chat and we can discuss further.

Best regards,
Pavish
 

2 CBM PR 2022

• TRD2D Addendum (A.Bercuci)
• TRD2D mCBM data reconstruction and alignment (A.Bercuci)
• TRD2D mCBM simulations - no contribution (n.a.)
• TRD2D prototype (L.Radulescu, t.b.c.)
• TRD2D FEE - no contribution (Claudiu, Mihai, Alex)

Speaker: Alexandru Bercuci (IFIN-HH)

3 Prototype construction

20221206_072912.jpg

 Dear All,

 The initial intention was to present today the signals with a 55Fe.
 Due to some reasons, this is delayed by a couple of days.
 However, as you could see in the attached photo, the TRD-2D PRP was
assembled and successfully past the tightness tests.
 Quite probable today or tomorrow the structure required to operate the
counter will be ready and the first signals are expected to be seen.
 Although this achievement was possible due to the contribution of many
people, Andrei, Cristi, Vali and George deserve special thanks.
 A presentation on "What did we learn from assembling and testing the
TRD-2D PRP prototype" is also not ready.
 See you soon,

   Mihai