[Clas12_software] Updated slides for CLAS12 software meeting, tomorrow August 22

[Mac Mestayer]

I meant "phi vs. theta vs. p"

and not "phi vs. electron"


- Mac

________________________________
From: Clas12_software <clas12_software-bounces at jlab.org> on behalf of Mac Mestayer <mestayer at jlab.org>
Sent: Friday, August 23, 2019 11:29:03 AM
To: Harut Avagyan <avakian at jlab.org>; clas12_software at jlab.org <clas12_software at jlab.org>
Subject: Re: [Clas12_software] Updated slides for CLAS12 software meeting, tomorrow August 22


Hello Harut;


Very nice studies.

I would like to comment on your statement that the

large phi-dependence of the acceptance will necessitate

fiducial cuts.

I agree, but I think that the fiducial cuts should be in

actual geometrical space (for example, the distance of the

track's cross position from the endplate) rather than

in kinematical space (for example, phi vs. electron).

I think this would result in simpler cuts and more reliable

simulations.


- Mac

________________________________
From: Clas12_software <clas12_software-bounces at jlab.org> on behalf of Harut Avakian <avakian at jlab.org>
Sent: Friday, August 23, 2019 10:29:13 AM
To: clas12_software at jlab.org <clas12_software at jlab.org>
Subject: [Clas12_software] Updated slides for CLAS12 software meeting, tomorrow August 22

On 8/21/19 5:08 PM, Veronique Ziegler wrote:
- MC vertex reconstruction studies (Harut)


Dear All,

Following Aug 22 discussion I updated the slides in https://userweb.jlab.org/~avakian/tmp/clasdis-mc-vertex.pdf ( see slides from 12-15)

with plots for fixed momentum and Vz=-3. Things look more clear, but tendencies didn't change.

The  acceptance reduction in phi with energy of electrons, indicates the need of all kind of fiducial cuts in fine momentum bins.


Some more detailed plots  for momentum range 2.4<P_pion<2.6 for  for piplus (pip) and pimunus (pim) are in

https://userweb.jlab.org/~avakian/tmp/clasdis-pip.pdf

https://userweb.jlab.org/~avakian/tmp/clasdis-pip.pdf

The plots on the differences in energy, polar angle and azimuthal angle from duiffere of generated and reconstructed quantities, shows

some dependence on the azimuthal angle.


Regards,

Harut
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