[Clas12_verystrange] [EXTERNAL] BvsP plots

lguo lguo at jlab.org
Wed Oct 2 17:23:32 EDT 2019


Looks good! One question, did K-minus get a bit worse using RECFT?

With the K+ this good, we should able to see a decent lambda (either ep —> e K+ p (pi-) or even ep —> eK+ (Lambda) since pi- might have acceptance issues.

Lei

> On Oct 2, 2019, at 5:07 PM, Eugene Pasyuk <pasyuk at jlab.org> wrote:
> 
> Ok. Now I understand some of it. When you include neutrals in b vs p you see where n gamma pid cut is. b>0.9 assigned to be photon, b<0.9 assigned as a neutron. This step at 2 GeV is where beta of the neutron crosses 0.9. When you plot charged only this is all gone.
> This step at b=0.9 is also clearly seen when neutral are included.


Nice call.

>  
> -Eugene 
>  
>  
> From: Clas12_verystrange <clas12_verystrange-bounces at jlab.org> on behalf of Jose Carvajal <jcarv036 at fiu.edu>
> Reply-To: clas12 verystrange <clas12_verystrange at jlab.org>
> Date: Wednesday, October 2, 2019 at 16:56 
> To: clas12 verystrange <clas12_verystrange at jlab.org>
> Subject: [Clas12_verystrange] [EXTERNAL] BvsP plots
>  
> Good afternoon 
> I have created different plots of BvsP and mass distributions for different charge selections for banks RECFT::Particle and REC::Particle. You can find it at my JLAB webpage. 
> https://userweb.jlab.org/~jcarv/BvP_MD_skim3_5038.pdf <https://userweb.jlab.org/~jcarv/BvP_MD_skim3_5038.pdf>
> This was done reading directly from the banks; the only applied cut is beta < 1. 
> Regards,
> Jose
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