Hi OK, It missed the most important : http://www.nbi.dk/~pchristi/BRAHMS/SPECTRA/Y_0/ http://www.nbi.dk/~pchristi/BRAHMS/SPECTRA/Y_1/ Sorry Peter On Thu, 11 Jul 2002, Peter H. L. Christiansen wrote: > Hi > > I have produced some preliminary spectra that I think are ok but I > need to check some more (and add some more settings) AND ADD A TPM1 > EFFICIENCY CORRECTION. I found a problem in my code and I now find that > the TOFW correction is ~10% and flat (I use 10%). > I have continued my work with the TPM1 efficiency and if I include TOFW > matching it changes little but seems to be 91 % at 40 degrees. I will run > with more data and at diffrenet settings and try to parameterize vs > clusters tonight. > > The results I believe (read hope) is not gonna change by more than 10% > (except for the TPM1 correction which I think is in the ball park 5-15% so > they can be used to compare with for other MRS guys/girls (and the bold > can think about the physics;) > > The plan is to have another iteration tonight when I have the TPM1 > correction. > > Cheers > Peter > > Best results : > > y = 0 (0-5%) > ===== Y T > pi+ : 238 +- 4 232 +- 2 > pi- : 227 +- 5 231 +- 2 > K+ : 43 +- 2 286 +- 7 > K- : 40 +- 2 291 +- 7 > p : 27 +- 1 377 +- 10 > pbar : 20 +- 1 369 +- 11 > > Phenix 0-5% > ================= > pi+ : 276 +- 3 > pi- : 270 +- 3 > K+ : 47 +- 2 > K- : 41 +- 2 > p : 29 +- 1 > pbar : 20 +- 1 > > Comment to phenix data : > 30% of the pi are extrapolated and at really low pt <20% so a lot has > to do with the function you choose. > > BRAHMS y ~ 0.8 (0-5%) > ===== > pi+ : 226 +- 4 212 +- 2 > pi- : 217 +- 4 216 +- 2 > K+ : 41 +- 1 294 +- 11 > K- : 39 +- 1 298 +- 10 > p : 25 +- 1 368 +- 15 > pbar : 19 +- 1 347 +- 15 > > -- :-) --------------------------- )-: Peter H L Christiansen @ NBI EMAIL : pchristi@nbi.dk OFFICE : Tb1@NBI (353 25269) HOME : Hjertensfrydsgade 3, st PHONE : 33330493(New)/ 40840492(mob.) :-D --------------------------- \-:
This archive was generated by hypermail 2b30 : Thu Jul 11 2002 - 16:58:05 EDT