Re: [Brahms-l] 63 AGeV results

    Hi Flemming, Ian,

   Thank you again for helping me. I checked some things and I discovered
that I maked quite a big mistake. Basicaly, I'm using the analyze_app
package maked by Djamel and Claus. Looking trough histograms I discovered
that the track efficiency was taken 1 for all the FS settings. So I
found out in the scripts where the problem was and I replaced/uncommented
the proper lines. Now I'm regenerating the data maps and remake the plots.
When I will finish I will show the new plots.
   For now I posted the pid selection plots from RICH at 3A1723 and 3B1723
settings on the same page http://www4.rcf.bnl.gov/~aic/ , as you asked
for them.

                         Regards,
                            Ionut


On Tue, 22 Mar 2005, Ian Bearden wrote:

> Thanks for the plot.  Can you plot your cuts on top of the data?
> We did this very quickly here last fall and found netp around 40 at
> y~3, so our preliminary
> proton yield must be roughly a factor 4 higher than yours.  At y~2, the
> difference looks to be about a factor of
> 2, while at mid rapidity, the diferences are small.  I don't know how
> trustworthy the 40 is, but I think you will
> have problems with baryon number conservation if  netp at y~3 is only
> around 10.
> I'll check the status of the local analysis, and see if anything has
> changed.
> Cheers,
> Ian
> On 22/3-2005, at 12:07, Ionut Christian Arsene wrote:
>
> >
> >     Hi Ian,
> >
> >   Thank you for your message. About your question, well looking to
> > Peter's
> > nuclear stopping paper, where the net baryon peak is around y=4 with a
> > beam rapidity of 5.36 (for 200 GeV), I expect that at 63 GeV this peak
> > should be around 3-3.5 roughly because the beam rapidity is ~4.2. So
> > that's why I believe that the net-proton yield should be a lot higher
> > around y=3.
> >   I just posted a plot ahowing the ring radius for RICH at 3B1723
> > setting.
> > It's on the same address http://www4.rcf.bnl.gov/~aic/ , but at the
> > bottom
> > of the page.
> >
> >                        Regards,
> >                           Ionut
> >
> >
> >
> > On Tue, 22 Mar 2005, Ian Bearden wrote:
> >
> >> I tried to send this last night, but I guess I did it from another
> >> address and it was stopped by the list server.
> >> I'll try again!
> >>
> >> Begin forwarded message:
> >>
> >>> From: Ian Bearden <ianbearden@mac.com>
> >>> Date: 21. marts 2005 23:33:49 MET
> >>> To: Ionut Christian Arsene <i.c.arsene@fys.uio.no>
> >>> Cc: brahms-l@lists.bnl.gov
> >>> Subject: Re: [Brahms-l] 63 AGeV results
> >>>
> >>> Hi Ionut,
> >>> I have one question about your analysis.  You say you use the RICH to
> >>> ID protons at y=3,
> >>> do you have a plot of the RICH mass (or ring radius) showing what you
> >>> ID as pi,K, p?
> >>> You say that the net-p point is significantly lower than expected.
> >>> What is the basis of your expectation?
> >>>
> >>> I'm sure I'll have more questions/comments as I read and look more
> >>> carefully,
> >>> Cheers,
> >>> Ian
> >>>
> >>> On 18/3-2005, at 12:46, Ionut Christian Arsene wrote:
> >>>
> >>>>
> >>>>      Hi all,
> >>>>
> >>>>    I obtained some results from the Au+Au 63 AGeV data run. A part
> >>>> of
> >>>> the
> >>>> graphs are posted at the following address:
> >>>>   http://www4.rcf.bnl.gov/~aic/.
> >>>> In the next days I will update the page with new plots.
> >>>>    I would like to present these results at the workshop that will
> >>>> take
> >>>> place in Bergen at the end of this month, so I will appreciate your
> >>>> comments and sugestions about these results.
> >>>>
> >>>>              Regards,
> >>>>                 Ionut
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> Brahms-l mailing list
> >>>> Brahms-l@lists.bnl.gov
> >>>> http://lists.bnl.gov/mailman/listinfo/brahms-l
> >>>>
> >>>
> >>
> >
>
>

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