[Halld-klf] [EXTERNAL] two-body kinematics

[Beni Zihlmann]

Hi Moskov,

my response to this is the following:
lets take a K+ at 150MeV/c going out at close to 60 degree.
This K+ my need to pass through a substantial amount of liquid hydrogen
depending on where it is generated in the target. This can be between zero
and 7cm. After that it has to pass tough the target cell the scattering 
chamber
and then through the start counter in order to get to the CDC and 
produce a track.

so
a) what is the likelihood that a 150MeV/c K+ makes it to the Start counter?
b) how much energy is deposited in the start counter?
c) what is the likelihood that this K+ will generate enough hits in the 
CDC  to reconstruct a track?
d) There will be only 1 track at best, how can this event be 
reconstructed with this limited
      since the vertex is not very well defined?

cheers,
Beni


On 12/4/23 17:49, Amaryan, Moskov wrote:
> Dear all,
>
> As we discussed today, as an example, please find in the attachment
> double plot for the kinematics of K_L+p \to K^+n for 200 MeV/c
> of incoming K_L momentum. As one can see, very forward angles
> constitute a small fraction of the entire angular range of produced K^+.
>
> Best regards,
> Moskov.
>
>
> **Dr. Moskov Amaryan
> Eminent Scholar and Professor of Physics
> Old Dominion University
> Norfolk, VA 23529​
>
> Phone: 757-683-4614
> Fax: 757-683-3038
>
> _______________________________________________
> Halld-klf mailing list
> Halld-klf at jlab.org
> https://mailman.jlab.org/mailman/listinfo/halld-klf
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/halld-klf/attachments/20231205/8f477e7a/attachment.html>