Re: Draft 4.0

From: Ian Bearden (bearden@nbi.dk)
Date: Tue Jul 01 2003 - 09:17:27 EDT

  • Next message: Trine S. Tveter: "Re: Draft 4.0"
    Hi Peter,
    
    On tirsdag, jul 1, 2003, at 11:43 Europe/Copenhagen, Peter H. L. 
    Christiansen wrote:
    
    > Hi
    >
    > I went over the paper with the others here in C last evening, so I just
    > have very few comments :
    >
    > * Do we quote an estimate of the initial energy density in any of our 
    > mult
    > paper. If we do so we should cite it with the e>5GeV. I looked but 
    > could
    > not find it.
    It is a trivial calculation. And, 5GeV is, I think, about the lowest 
    value you can obtain.
    >
    > * 97% of total Au+Au cross section should be 95% as in our 200 GeV mult
    > paper just to be consistent. I guess like FV said that nobody has 
    > really
    > done this estimate or ....
    I changed it to 95%, but I think that this comes from work Trine did 
    for the mult paper.  Is
    >
    > * It would good with a sentence like this before we mention the 30%
    > systematic error :
    > The systematic error on the \eta=0 data is estimated to be XX %.
    > and a sentence like this after we talk about that most systematic 
    > errors
    > cancel :
    > The systematic error on Rcp was estimated to be XX % at both
    > pseudorapidities.
    > And if we know :
    > This systemnatic error primarily comes from .... But I think we should 
    > at
    > least quote the values we use.
    >
    > I guess we should also mention the momentum resolution since that is
    > somehow interesting to know. Maybe a sentence like :
    > At each pseudorapidity many different mangnetic field settings were
    > combined to give a broad p_T coverage. The momentum resolution in the
    > settings used to measure the highest p_T values was dp/p~0.020 (MRS at
    > \eta=0) and dp/p~0.0015 (FS at \eta=2.2). The effect on the spectra was
    > estimated to be small (<3%) at all p_T and no correction has been 
    > applied.
    > (The last statement is justified by the analysis done by Trine.)
    >
    > Cheers
    >    Peter
    >
    > -- 
    > :-) --------------------------- )-:
    >  Peter H L Christiansen @ NBI
    >  EMAIL  : pchristi@nbi.dk
    >  OFFICE : Tb1@NBI  (353 25269)
    >  HOME   : Frimestervej 22, 1. tv
    >  PHONE  : 35824930/40840492
    > :-D --------------------------- \-:
    >
    >
    >
    


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