Re: [Brahms-dev-l] Update spectra from pp run 2003

Hi Zhongbao,
At first glance, it seems that there is quite a jump at pt~1.8GeV/c. Is 
this where the two settings (should) match?
Also, I beg you once again to show the data in a way that makes it 
easier to judge.  I have difficulties  judging from 8 decade log 
plots...  I don't know what the best way is, maybe you could make a fit 
to each of the settings you use, and then
plot the ratio of the fit to the other settings?  Another alternative 
would be to make a power law fit to Hijing (using only a cut in eta so 
that you have roughly the same acceptance as for the data) and make 
that ratio.  This could at least be shown on a linear scale, which 
might give more detail.  And anyway, I guess there is not much that a 
grad student can afford to do on a Friday night in Bergen :-)
Thanks for the update,
Ian
On 12/12-2003, at 18.21, yin.zhongbao@fi.uib.no wrote:

> Dear Collaborators.
>
> Here attached is updated spectra for h^- and pi^- at eta=2.2 from pp 
> run
> 2003. Two changes: 1) tracking efficiency got from Pawel's has
> been applied: 0.801 - all Fs tracks; 0.774 with T2Used = kFALSE
> 2) procedure of merging spectra: now merging 1d spectra got from 
> different
> setting instead of merging 2d spectra and then do projection. This will
> not change yields or shape dramatically. The benefit is that can remove
> the first no-zero bin and last no-zero bin of spectra for each setting.
>
> Please comment and criticize. That can improve our results!
>
> All my programs used to produce spectra are located in 
> brahms_app/zy_app.
> If you are really interested in, you can have a look.
>
>
> Best regards,
> Zhongbao
>
> -----------------------------------------------------
> Zhongbao YIN                 Phone:  +47-55-582792 (O)
> Address:                             +47-55-276803 (H)
>   Fantoftveien 14G 466       E-mail:
>   5075  Bergen                  Yin.Zhongbao@fi.uib.no
> ------------------------------------------------------
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