[Clas12_verystrange] Fwd: Detached vertices validation

[Achyut Khanal]

Hi All,

 I have attached the presentation with requested validation plots. We can discuss during our VS meeting at noon.

-Achyut


Begin forwarded message:

From: Achyut khanal <akhanal at jlab.org<mailto:akhanal at jlab.org>>
Subject: Re: [Clas12_verystrange] Detached vertices validation
Date: June 11, 2021 at 2:52:32 PM EDT
To: clas12_verystrange at jlab.org<mailto:clas12_verystrange at jlab.org>
Cc: Veronique Ziegler <ziegler at jlab.org<mailto:ziegler at jlab.org>>, Eugene Pasyuk <pasyuk at jlab.org<mailto:pasyuk at jlab.org>>

Hi All,

Here are the validation plots on demand from today’s meeting that I will be working on. Please feel free to add more if you think would be worth looking at.

1) Individual particle vertices from REC::Particle bank
2) Particle momenta
4) scatter plot:: deltaV vs radial distance, deltaV vs p

- Achyut

On Jun 10, 2021, at 11:59 AM, Eugene Pasyuk <pasyuk at jlab.org<mailto:pasyuk at jlab.org>> wrote:

Achyut,

Another thing to look at is the resolution of the doca between the vertices. This is the parameter we will eventually use for cuts.
Rather than plotting TOF plot the doca distribution, |vtx-ppim-vtx_ekp|, and also the difference between simulated and reconstructed for this variable.

Thanks,
-Eugene

From: Achyut Khanal <akhanal at jlab.org<mailto:akhanal at jlab.org>>
Sent: Wednesday, June 09, 2021 16:18
To: clas12_verystrange at jlab.org<mailto:clas12_verystrange at jlab.org>
Cc: Raffaella De Vita <devita at jlab.org<mailto:devita at jlab.org>>; Veronique Ziegler <ziegler at jlab.org<mailto:ziegler at jlab.org>>; Eugene Pasyuk <pasyuk at jlab.org<mailto:pasyuk at jlab.org>>
Subject: Re: [Clas12_verystrange] Detached vertices validation

Dear All,

I have produced couple of validation plots to check detached decay vertices of lambda in ep->ek+lambda; lambda->ppi- . Please find the attached presentation.

Thank you,
Achyut



On May 13, 2021, at 10:46 AM, Raffaella De Vita <devita at jlab.org<mailto:devita at jlab.org>> wrote:

Dear All,
As discussed, we tagged a coatjava release including the detached vertex package. The release is 6c.6.3 and is available in the common /group install, loading the corresponding coatjava module. Note that if you use a yaml file to define the reconstruction configuration, you should include the detached vertex package in the list. An example for reconstruction of RGA Fall2018 simulations is attached.

The output of the new package is saved in the new REC::VertDoca bank (see https://github.com/JeffersonLab/clas12-offline-software/blob/detachedVtx/etc/bankdefs/hipo4/event.json#L411).

Let us know if you encounter any problem.
Thanks a lot for your help with the validation of this package.
Best regards,
Raffaella

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