STS simulations: Layout, digitizers, performance Radoslaw Karabowicz GSI.
Large rapidity (y~3.2) data analysis from 200 GeV/c AuAu and pp runs Radoslaw Karabowicz Hot Matter...
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Transcript of Large rapidity (y~3.2) data analysis from 200 GeV/c AuAu and pp runs Radoslaw Karabowicz Hot Matter...
Large rapidity (y~3.2) data analysis from 200 GeV/c
AuAu and pp runs
Radoslaw KarabowiczHot Matter Physics Department
M. Smoluchowski Insititue of Physics
Jagiellonian University, Krakow
SPECTRA CHALLENGE
SPECTRA CHALLENGE cont’d
SPECTRA CHALLENGE cont’d
I am definiately overpredictingdata at lower pt
SPECTRA CHALLENGE cont’d
After properly initiliazingRICH I’m going down atlow pt’s
Comparison with Ramiro’s
spectra (pp 200GeV/c)
This is very similar to this plot - suggests problems with acceptance maps (I generate my own different acc.maps)
… -> but recently I was furiously cleaning my directory and deleted (without cvs’ing) my acceptance maps generator. I have old version but it’s not compiling… yet
Comparison with Ramiro’s
spectra (pp 200GeV/c)
But anyways, the comparison with Ramiro’s spectra is relatively good – at least for pions
pT spectra at large y (from AuAu and pp at 200 GeV/c)
2deg settingnot correctedfor efficiency
Antiparticle-to-particle ratio
AuAu pp
Proton and kaon to pion spectra
proton kaon
Nuclear Modification Factors
pions at y ~ 3.2
kaons at y ~ 3.1
protons at y ~ 3.1
Hirano Nara Phys.Rev. C 68, 064902
pT spectra at various y - AuAu
Spectra at various rapidities show stable behaviour of the spectra with rapidity
pT spectra at various y - pp
Spectra at various rapidities show stable behaviour of the spectra with rapidity
RAA at various rapidities
Nuclear Modification Factors
pions at y ~ 3.0
kaons at y ~ 3.0
protons at y ~ 3.0
pions at y ~ 3.1
kaons at y ~ 3.1
protons at y ~ 3.1
Nuclear Modification Factors
pions at y ~ 3.2
kaons at y ~ 3.2
protons at y ~ 3.2
Nuclear Modification Factors
pions at y ~ 3.3
kaons at y ~ 3.3
protons at y ~ 3.3
Nuclear Modification Factors
pions at y ~ 3.4
kaons at y ~ 3.4
protons at y ~ 3.4
Nuclear Modification Factors
pions at y ~ 3.5
kaons at y ~ 3.5
protons at y ~ 3.5
Nuclear Modification Factors
pions at y ~ 3.7
kaons at y ~ 3.6
protons at y ~ 3.6
Nuclear Modification Factors
RAA at various centralities
pions at y ~ 3.2
kaons at y ~ 3.1
protons at y ~ 3.1
RAA vs Npart
RAA versus dN/dand energy density
conclusions
• Basicly no rapidity depedence of Raa (just like in QM05)
• Strong centrality dependence of Raa for all particles, stronger than that seen at midrapidity (just like in QM05)
• Although models predict Raa raising at forward rapidities no such behavoiur is seen in my data, BUT pt region is not enough to make very strong conclusions
• As to data consistency - I am overpredicting spectra at lower pt's