[Frost] Determining Helicity

[Sungkyun Park]

Dear Brian,

I also use the information of the TGBI bank like Steffen.
The following is the beam polarization part of my code:

      int beamPol = -999;             // for helicity info.                                           
      int check15 = 1;        

      beamPol = TGBI[0].latch1;
      check15 = check15 << 15;
      beamPol = beamPol & check15;
      beamPol = beamPol >> 15;          // now helistate is either 1 or 0   

If you have a question, let me know them.
Sung

----- Original Message -----
From: Brian Morrison <btmorr at jlab.org>
Date: Monday, February 8, 2010 5:21 pm
Subject: [Frost] Determining Helicity
To: frost at jlab.org

> Hey all,
> 
> For those of you who did some helicity analysis in the past on the 
> FROSTdata could you send me an email with how you determined which 
> helicity was
> associated with each event?  I'm having some really strange things 
> show up
> in my plots and need to make sure that the method I'm using to 
> determinethe helicity is correct (or if there is an easier and more 
> sure way of
> determining it).  Thanks!
> 
> -Brian
> 
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