[Brahms-dev-l] dp fit check

From: flemming videbaek <videbaek_at_bnl.gov>
Date: Mon, 17 May 2010 18:58:10 -0400
Hi Michael and Casper.
I looked as promised into features of the fitting of d,dbar spectra to  
get an idea,feel for the syst errors.
I did a number of different fits, ranges etc

d y=0
fitrange      dn/dy      delta(dndy)   T        dT       coverage  
(%)     <pt>
0.7-2.5      0.09           0.0009       658   13             
65%                  1.67
1.2-3,2      0.0093       0.0009       561   56            
55                      1.54
1.2-2.6      0.0093      0.0008       612   112          
52                       1.54 (+-0.07)  added 8% p-to-p error
1.5-3.2      0.0098      0.0012       533   68            50
Bolts
1.2-3.2     0.00911     
0.009                                                                 
1.61

d-bar y=0
fitrange      dn/dy      delta(dndy)   T        dT       coverage  
(%)     <pt>
1.2-3.2       0.0032     0.00039     870    
195                                     1.88
1.4-3.2       0.0031     0.00041     816   210

d-bar (y=1)
fitrange      dn/dy      delta(dndy)   T        dT       coverage  
(%)     <pt>
1.2-3.5       0.00290    0.00016     731    
72                                     1.75
1.4-3.5       0.00291    0.00017      729  90

d(y=1)
fitrange      dn/dy      delta(dndy)   T        dT       coverage  
(%)     <pt>
1.2-3.2        0.0065   0.0003       604       
36                                      1.60
1.4-3.2        0.0074   0.0005       534      37         
40                          1.50 (+-0.05)


regards
	Flemming



Flemming Videbaek
videbaek @ bnl.gov
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell     :  631-681-1596





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Received on Mon May 17 2010 - 18:56:07 EDT

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