Possible figures (none final!) in the pion-kaon paper

1
Possible figures (none final!) in the pion-kaon
paper

• Few words about the pion-kaon paper
• Analysis of pion-kaon correlation function
• Main point pion and kaon not emitted at the
  same point or/and time
• Physics message/idea
• Time shift?
• Space shift? (pos-mom correlation?)
• Both space and time shift?

• Figures
• Pair acceptance
• Correlation functions and ratios
• Cross check plots
• Comparison to models

2
Pair acceptance
Dip due to ee- pair removal cut
Going down due to low pt cut off
3
Main results Pions and kaons not emitted at the
same time or/and space
Non-flat ratio of correlation functions
4
Cross checks
Correlation function
Cvk ratio our physics
k out ratio our physics in the transverse plane
k side ratio must be flat by definition Issues
ee-, two-track res.
k long ratio must be flat by construction
5
Comparison to modelsRQMD to be done (shown)
6
Remaining issues

• Data
• Momentum resolution
• Purity
• Fraction of secondary pions from weak decay to be
  estimated
• Systematic errors

• Model comparisons
• Understand space momentum correlation
• How to the affect the ratio
• Understand the model predictions
• HydroRQMD vs RQMD
• Space-momentum correlation delayed emission
  from resonance decay is what we see?