Re: question

From: Peter H. L. Christiansen (pchristi@nbi.dk)
Date: Fri Aug 24 2001 - 11:33:54 EDT

  • Next message: Eun-Joo Kim: "Re: question"

    Hi EunJoo
    
    I have looked a little bit at my old stuff for finding the time row
    corrections and it even confuses me. Unfortunately it will not be finished
    before I leave for 2 weeks. If you need it faster write me and I will give
    you short description of how to proceed.
    
    A very short description :
    http://www.nbi.dk/~pchristi/BRAHMS/TPC/timerow.html
    I made the first step outlined on the page and have the trees
    /direct/brahms+u/pchristi/scripts/brahms_app/pc_app/tpc/newtimerow
    TPM2timerow.old.root
    TPM1timerow.old.root
    T2timerow.old.root
    T1timerow.old.root
    There are trees that you can look at, I could not get my automatic scripts
    to work....
    do fx :
    T->Draw("dy:y", "row==2&&chi2<50")
    y and dy are in timebins.
    Then you can see the row time correction.
    Fit the profile with a pol1 and use the corrections in your script (That
    is probably also the only way to figure out the sign).
    
    Cheers
       Peter
    
    On Fri, 24 Aug 2001, Eun-Joo Kim wrote:
    
    > Dear Peter,
    >
    > Nice work!!!
    >
    > I have a question. How did you decide "SetTimeCorrection" for tpm2?
    > Because I looked at histograms, and it made me little confused.
    >
    > Thanks,
    >
    >            -- EunJoo
    >
    
    -- 
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    |Peter H L Christiansen aka PAN @ NBI	|
    |EMAIL  : pchristi@nbi.dk		|
    |OFFICE : Tb1 @ NBI			|
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