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Results from 1D HBT study in p+p@200GeV

Updated on Wed, 2009-04-08 21:41. Originally created by chajecki on 2008-08-26 18:01.

I. Rinv

1. p+p@200GeV min-bias; <dNch/dη>=4.25

   Standard fit  delta-Q fit  EMCIC fit
kT [GeV/c] Rinv[fm] λ Rinv[fm] λ Rinv [fm] λ
 [0.15,0.25]  1.32±0.02  0.345±0.005  1.72±0.04  0.285±0.007  1.38±0.02  0.452±0.008
 [0.25,0.35]  1.26±0.02  0.357±0.007  1.65±0.04  0.339±0.009  1.35±0.02  0.451±0.010
 [0.35,0.45]  1.18±0.02  0.348±0.008  1.49±0.05  0.308±0.011  1.23±0.02  0.473±0.012
 [0.45,0.60]  1.05±0.03  0.413±0.012  1.41±0.06  0.338±0.017  1.09±0.03  0.501±0.019
 [0.15,0.60]  1.21±0.01  0.354±0.002  1.61±0.02  0.312±0.004  1.32±0.02  0.480±0.003

 

2. p+p@200GeV ;  <dNch/dη>=3.47 (2<= mult <=6)

   Standard fit delta-Q fit  EMCIC fit
  
kT [GeV/c] Rinv[fm] λ Rinv [fm] λ Rinv [fm] λ
 [0.15,0.60]  1.09±0.01  0.346±0.004  1.50±0.03  0.275±0.007  1.22±0.03 0.485±0.003

 

3. p+p@200GeV ; <dNch/dη>=8.75 (7<= mult)

   Standard fit delta-Q fit   EMCIC fit
  
kT [GeV/c] Rinv[fm] λ Rinv [fm] λ Rinv [fm] λ
 [0.15,0.60] 1.34±0.01 0.356±0.003  1.76±0.03  0.322±0.006  1.46±0.02  0.504±0.003

 

(2) EMCIC fit for <N>=14; <pT2>=0.17 GeV2/c2; <pZ2>=0.33 GeV2/c2,<E2>=0.50 GeV2,<E>=0.71 GeV

 

 

 

Figure: Rinv vs mult from STAR.

 

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