[Hps-analysis] WAB Normalization

[Jaros, John A.]

Rafo,

Another possibility is that we're comparing apples and oranges.

We should have the sum of WAB+beam and TRI+ beam equal to WAB beam TRI.
I don't know how big this effect is, but would be interesting to see. Matt has reported something
similar in his talk of Feb 1, slide 3.

I think Bradley is considering generating these new categories. I think we also want them to do best fits to 
the multiple distributions: esum, P+, P-, mass, etc. to extract the wab and trident fractions.

John

-----Original Message-----
From: Hps-analysis [mailto:hps-analysis-bounces at jlab.org] On Behalf Of Rafayel Paremuzyan
Sent: Wednesday, February 08, 2017 1:00 PM
To: Bradley T Yale; hps-analysis at jlab.org
Subject: [Hps-analysis] WAB Normalization

Hi Brad,

Using normalization factors that I have, I am getting about 30-40% larger rate for pure wabs wrt Wab Beam Tri.

I would like to double check normalizations:

I am using following files
/mss/hallb/hps/production/postTriSummitFixes/recon/wab/1pt05/wabv3_spinFix_100to1_HPS-EngRun2015-Nominal-v5-0-fieldmap_3.11-20170118_pairs1_*

The cross section is 0.57*bn;
number of generated events per recon file is 1000000 = 100 (gen files) *
10000 (number of events per gen file).

Could you please confirm these numbers?

Rafo
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