Hi Claus,
Where is the plot showing the pt ratio of central (0-10) to
semi-peripheral (40-60) ?
Could you please give a bit more details on the plots.
(not easy to figure out what is plotted there!).
It would be also helpful if you could number your plots.
2 general questions:
- Did you analyse all available data ? or is there still some hope
to increase the statistics?
- Did you subtract background contributions for the most peripheral
cuts (in particular, the 40-60%) ?
Best regards, Fouad
----------------------------------------------------------------------------
Fouad RAMI e-mail : fouad.rami@ires.in2p3.fr
IReS phone : 33.(0)3.88.10.62.00
23,rue du Loess : 33.(0)3.88.10.64.55
B.P.28-BAT.20 (secretary's office)
67037 STRASBOURG CEDEX 2 fax : 33.(0)3.88.10.66.14
FRANCE
----------------------------------------------------------------------------
On Fri, 5 Jul 2002, Claus O. E. Jorgensen wrote:
>
> I've made some preliminary plots for my qm2002 talk. You can find them
> here:
>
> http://www.nbi.dk/~ekman/highpt/highpt.html
>
> The main physics plots will be
>
> - (h++h-)/2 pt spectra for 0-5, 5-10, 10-20 and ~40-60% centrality at
> eta=0.
>
> - pt ratio (R) of central (0-10) to semi-peripheral (~40-60). Here I
> conlude that we our measurements indicate a suppression of high pt
> particles when comparing central to semi-peripheral collisions - this
> comparison is of course independent on fit ranges and reference data
> taken with another experiment.
>
> - ratios of spectra to p+pbar reference (ua1) data. These ratios are
> dependent on the choice of reference data and fit ranges/methods.
> However, suppression of high pt hadrons is observed and it is more
> pronounced for the central collisions.
>
> - ratios of protons to all hadrons as function of pt. Mesonic vs. baryonic
> jets??? Who knows about this stuff? Is my result reasonalbe (I just
> pulled out the numbers)?
>
> - pi- spectrum at y approx 2.2 for 0-15% central. The statistics are
> unfortunately not good enough to make qualitative statements on the
> slope at high pt.
>
> - pi- pt ratios of central (0-10) to semi-peripheral (~40-60). The ratio
> constant (within the erros). What do we expect at forward rapidities?
>
>
> Comments and suggestions are very welcome...
>
> Cheers,
>
> Claus
>
>
> +-------------------------------------------------------------+
> | Claus Jørgensen |
> | Cand. Scient. Phone : (+45) 33 32 49 49 |
> | Cell : (+45) 27 28 49 49 |
> | Niels Bohr Institute, Ta-2, Office : (+45) 35 32 53 07 |
> | Blegdamsvej 17, DK-2100, E-mail : ekman@nbi.dk |
> | University of Copenhagen Home : www.nbi.dk/~ekman/ |
> +-------------------------------------------------------------+
>
This archive was generated by hypermail 2b30 : Fri Jul 05 2002 - 06:47:59 EDT