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

[Beni Zihlmann]

H Moskov,

I did some fast crewed simulation and find that a 150MeV/ K+ will never 
be detected
in the GlueX detector. It is simply not possible. The K+ decays even 
before reaching the
Start Counter.

In order for a K+ to be detected and tracked it needs a momentum of 
about 250MeV/c
at the minimum.

you can find the necessary information in the attached pdf file.

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
>
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> Halld-klf at jlab.org
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