Difference between revisions of "DeltaDoverD Progress"
Line 1,143: | Line 1,143: | ||
You should add the systematic error as a separate uncertainty to the graph. | You should add the systematic error as a separate uncertainty to the graph. | ||
− | Usually | + | Usually you can remove the riser from the larger uncertainty and include the riser (the horizontal bar) on the smaller uncertainty.. |
Revision as of 14:32, 2 August 2011
TD_Ddoverd_2008
TD_Ddoverd_2009
TD_Ddoverd_2010
The goal
Fragmentation Function test
A complete test of independent fragmentation can be performed with polarized proton and neutron targets. The ratio of the difference of polarized to unpolarized cross sections for proton and neutron targets
can be written in terms of the structure functions:
Delta d over d
1/24/2011
1.) Find energy range with substantial ND3, pi- events when B <0.
Ratio plot for Q^2 and X_{BJ}
once you find the Q^2 and X_BJ range holding a reasonable amount of data.
2.) Inclusive electron scattering ratio of
Inclusiveelectrons -vs- Q-squared | Inclusive Missing Mass (W) for 1.0 Q^2 <1.2 |
[[|300px|thumb|The ratio of inclusive electrons detected in scintillator paddle #7 when Btorus >0 (B_p)to inclusive electrons detected by paddle 11 when B<0(B_n) NH3 Target]] | [[|300px|thumb|The inclusive missing mass W for each torus setting. Dashed line is B>0 and solid line is B<0]] |
[[|300px|thumb|The ratio of inclusive electrons detected in scintillator paddle #7 when Btorus >0 (B_p)to inclusive electrons detected by paddle 11 when B<0(B_n)]]ND3 Target | [[|300px|thumb|The inclusive missing mass W for each torus setting. Dashed line is B>0 and solid line is B<0]] |
[[|300px|thumb|The ratio of inclusive electrons detected in scintillator paddle #7 when Btorus >0 (B_p)to inclusive electrons detected by paddle 11 when B<0(B_n)]] Both Targets | 300px|thumb|The inclusive missing mass W for each torus setting. Dashed line is B>0 and solid line is B<0 |
3.) Semi Inclusive pion production ratios -vs- Q^2, Only electron cuts
/cache/mss/clas/eg1b/production/pass1/v4/4p2out/misc/dst/dst2828*
ND3 4.2-
ND3 4.2+
NH3 4.2-
28422 28423 28424 28425 28426 28427 28428 28429 28432 28433 28438 28439 28443 28445 28446 28447 28448 28449 28450 28456 28457 28458 28460 28461 28462 28463 28464 28467 28469 28471 28472 28473 28476 28478 28479
NH3 4.2+
28240 28242 28244 28245 28246 28247 28249 28250 28252 28253 28254 28255 28256 28260 28261 28262 28263 28264 28265 28266 28272 28274 28275 28276 28277
File locations http://www.jlab.org/Hall-B/secure/eg1/EG2000/nevzat/UPGRADE_DST/
/cache/mss/home/nguler/dst
Rates before and after requiring pions
all the cuts are applied, except NPHE>2.5 cut.
4.2 GeV, ND3 target, 98 files, B<0
4.2 GeV, ND3 target, 32 files, B>0
The ratio for ND3 4.2 GeV data
Electron paddle selection
Inclusive
![]() |
![]() |
Electron Paddle Number(Inclusive, B<0, 4.2 GeV Beam, ND3 Target) | Electron Paddle Number(Inclusive, B>0, 4.2 GeV Beam, ND3 Target) |
Semi-Inclusive
![]() |
![]() |
Electron Paddle Number(Semi-Inclusive, B<0, 4.2 GeV Beam, ND3 Target) | Electron Paddle Number(Semi-Inclusive, B>0, 4.2 GeV Beam, ND3 Target) |
B>0, ND3 Electron paddle number=5
B<0, ND3 Electron paddle number=10
The Ratio
X_B | without pions | with pions |
0.3 | ||
0.35 | ||
0.4 | ||
0.45 | ||
0.5 | ||
0.55 |
The ratio for NH3 4.2 GeV data
Electron paddle selection
Inclusive
![]() |
![]() |
Electron Paddle Number(Inclusive, B<0, NH3 target, 4.2 GeV Beam) | Electron Paddle Number(Inclusive, B>0, NH3 target, 4.2 GeV Beam) |
Semi-Inclusive
![]() |
![]() |
Electron Paddle Number(Semi-Inclusive, B<0, NH3 target, 4.2 GeV Beam) | Electron Paddle Number(Semi-Inclusive, B>0, NH3 target, 4.2 GeV Beam) |
B>0, NH3 Electron paddle number=5
B<0, NH3 Electron paddle number=10
The Ratio
X_B | without pions | with pions |
0.3 | ||
0.35 | ||
0.4 | ||
0.45 | ||
0.5 | ||
0.55 |
1/31/11
Electron paddle number for B>0 is 5 and for B<0 - 10. The cut was applied on
:Inclusive
1.) Overlap electron kinematic (
, W, Momentum) for B>0 and B<0 and ND3 and NH3.(NH3,B>0), (NH3,B<0), (ND3,B>0) && (ND3,B<0)
2.) Now plot ratio (B< 0/B>0) electron kinematic (
, W, Momentum) for ND3 and NH3. ( I expect 2 curves in one plot),
![]() |
![]() |
![]() |
Electron Momentum( | , )Electron | Angle( , )W mass( | , )
2.) Target ratio (B< 0/B>0) Difference electron kinematic (
, W, Momentum) (Ration for ND3 target - Ratio for NH3 target). ( I expect 1 curves in one plot)
![]() |
![]() |
![]() |
Electron Momentum ( | )Theta Angle( ) | W mass( | )
Semi-Inclusive
(NH3,B>0), (NH3,B<0), (ND3,B>0) && (ND3,B<0)
![]() |
![]() |
![]() |
Electron Momentum((NH3,B>0), (NH3,B<0), (ND3,B>0) && (ND3,B<0)) | Electron | Angle((NH3,B>0), (NH3,B<0), (ND3,B>0) && (ND3,B<0))W mass((NH3,B>0), (NH3,B<0), (ND3,B>0) && (ND3,B<0)) |
2
2/7/11
1.) Now look a specific electron kinematic which appear to have unity ratio. P=2.5 GeV, \theta =18 degrees
W | NH3,B<0 | NH3,B>0 | ND3,B<0 | ND3,B>0 | NH3,B>0 - NH3,B<0 | NH3,B>0 - NH3,B<0 |
1.72 | 1.7 | -9.7 | ||||
1.74 | 3 | 5.1 | -3.2 | |||
1.76 | 5.0 | -43.6 | ||||
1.78 | 4.2 | -33.1 | ||||
1.8 | 0.8 | -5.2 |
2.) Semi-Inclusive using above electrons
![]() |
![]() |
Paddle Number | Pion Momentum |
3.) Semi-Inclusive using above electrons and choosing a single paddle from 2.)
Pi+/Pi- hitting paddle # | Pi+/Pi- hitting paddle # |
2/14/11
1.) Get all files
2.) Do semi-inclusive paddle number for pions again
3.) Paddle Number ratio (with more files in order to double check, the same cuts on electrons)
2/23/11
1.) Plot pi^-/pi^+ -vs paddle #
2.) Paddle 7 has ratio 0f 0.9. Plot W, Q^2 and M_{\pi}
W
Q^2
3.) Paddle 25 has ratio 0f 0.3. Plot W, Q^2, M (our goal is to determine if the detector has same efficiency for detector same reaction when the Torus filed is flipped)
W
Q^2
3/04/11
Table. 1 Pion Paddle Number ratio
- 1.) ND3Bn/NH3Bp
Pion Paddle Number | Number of Events ND3Bn | Number of Events NH3Bp | Ratio(ND3Bn/NH3Bp) | error
3.89 | 81 | 69 | 0.4 | 0.000896
4.89 | 84 | 87 | 0.33 | 0.000595
5.89 | 84 | 76 | 0.38 | 0.000757
6.89 | 75 | 98 | 0.26 | 0.000488
7.89 | 91 | 123 | 0.25 | 0.000348
8.89 | 115 | 141 | 0.28 | 0.000283
9.89 | 207 | 254 | 0.28 | 0.000117
10.89 | 212 | 300 | 0.24 | 0.000092
11.89 | 284 | 413 | 0.24 | 0.000057
12.89 | 322 | 501 | 0.22 | 0.000043
13.89 | 359 | 521 | 0.24 | 0.000040
14.89 | 365 | 565 | 0.22 | 0.000036
15.89 | 415 | 523 | 0.27 | 0.000040
16.89 | 444 | 526 | 0.29 | 0.000039
17.89 | 405 | 555 | 0.25 | 0.000036
18.89 | 414 | 528 | 0.27 | 0.000039
19.89 | 387 | 502 | 0.27 | 0.000042
20.89 | 408 | 505 | 0.28 | 0.000042
21.89 | 352 | 457 | 0.27 | 0.000048
22.89 | 298 | 358 | 0.29 | 0.000070
23.89 | 522 | 547 | 0.33 | 0.000038
24.89 | 530 | 608 | 0.3 | 0.000032
25.89 | 571 | 590 | 0.33 | 0.000034
26.89 | 523 | 564 | 0.32 | 0.000036
27.89 | 422 | 440 | 0.33 | 0.000052
28.89 | 368 | 342 | 0.37 | 0.000079
29.89 | 101 | 108 | 0.32 | 0.000427
- 2.) ND3Bp/NH3Bn
Pion Paddle Number | Number of Events ND3Bp | Number of Events NH3Bn | Ratio(ND3Bp/NH3Bn) | error
0.91 | 45 | 89 | 1.29 | 0.004556
1.91 | 86 | 127 | 1.73 | 0.002488
2.91 | 82 | 133 | 1.58 | 0.002361
3.91 | 91 | 330 | 0.71 | 0.000822
4.91 | 94 | 348 | 0.69 | 0.000766
5.91 | 125 | 360 | 0.89 | 0.000649
6.91 | 120 | 399 | 0.77 | 0.000594
7.91 | 148 | 443 | 0.86 | 0.000484
8.91 | 128 | 387 | 0.85 | 0.000595
9.91 | 121 | 510 | 0.61 | 0.000459
10.91 | 104 | 417 | 0.64 | 0.000607
11.91 | 145 | 449 | 0.83 | 0.000481
12.91 | 108 | 469 | 0.59 | 0.000528
13.91 | 113 | 449 | 0.64 | 0.000541
14.91 | 104 | 401 | 0.66 | 0.000631
15.91 | 98 | 427 | 0.59 | 0.000609
16.91 | 100 | 335 | 0.76 | 0.000774
17.91 | 70 | 316 | 0.57 | 0.000973
18.91 | 65 | 269 | 0.62 | 0.001189
19.91 | 56 | 270 | 0.53 | 0.001273
20.91 | 37 | 200 | 0.47 | 0.002111
21.91 | 27 | 149 | 0.46 | 0.003316
22.91 | 28 | 99 | 0.72 | 0.004942
23.91 | 32 | 112 | 0.73 | 0.004087
24.91 | 42 | 103 | 1.04 | 0.003963
25.91 | 25 | 70 | 0.91 | 0.007479
26.91 | 24 | 66 | 0.93 | 0.008105
27.91 | 27 | 39 | 1.77 | 0.014578
28.91 | 24 | 48 | 1.28 | 0.011546
W
Q^2
W
Q^2
3/21/11
1.) Efficiency Ratios.
- 0.a.) Table .
Pion Paddle Number | error | |
1 | 0.52 | 0.00188670 |
2 | 0.56 | 0.00075818 |
3 | 0.55 | 0.00080325 |
4 | 1.31 | 0.00152123 |
5 | 1.44 | 0.00158249 |
6 | 1.18 | 0.00084919 |
7 | 1.26 | 0.00096229 |
8 | 1.19 | 0.00066468 |
9 | 1.12 | 0.00077990 |
10 | 1.5 | 0.00113494 |
11 | 1.45 | 0.00137556 |
12 | 1.22 | 0.00070398 |
13 | 1.65 | 0.00147872 |
14 | 1.47 | 0.00122783 |
15 | 1.63 | 0.00154233 |
16 | 1.57 | 0.00162007 |
17 | 1.38 | 0.00138704 |
18 | 1.68 | 0.00288459 |
19 | 1.68 | 0.00321234 |
20 | 1.65 | 0.00394896 |
21 | 2.23 | 0.00993885 |
22 | 2.42 | 0.01726570 |
23 | 1.29 | 0.00877380 |
24 | 1.17 | 0.00650948 |
25 | 0.74 | 0.00280451 |
26 | 1 | 0.00808644 |
27 | 1.25 | 0.01073753 |
28 | 0.84 | 0.00615573 |
29 | 1.11 | 0.00957284 |
- 0.b.) Table .
Pion Paddle Number | error | |
1 | 0.61 | 0.00136217 |
2 | 0.58 | 0.00072875 |
3 | 0.56 | 0.00063600 |
4 | 1.16 | 0.00084147 |
5 | 1.09 | 0.00067329 |
6 | 1.22 | 0.00084552 |
7 | 1.26 | 0.00077718 |
8 | 1.3 | 0.00071299 |
9 | 1.35 | 0.00095814 |
10 | 1.91 | 0.00150046 |
11 | 1.6 | 0.00131397 |
12 | 1.32 | 0.00072210 |
13 | 1.71 | 0.00129895 |
14 | 1.46 | 0.00093334 |
15 | 1.93 | 0.00219770 |
16 | 1.76 | 0.00160711 |
17 | 1.29 | 0.00106561 |
18 | 1.63 | 0.00205808 |
19 | 1.49 | 0.00210549 |
20 | 1.87 | 0.00366838 |
21 | 2.01 | 0.00692445 |
22 | 1.73 | 0.00746426 |
23 | 1.51 | 0.00978854 |
24 | 1.5 | 0.00801872 |
25 | 1.01 | 0.00349049 |
26 | 0.86 | 0.00424348 |
27 | 1.04 | 0.00729985 |
28 | 0.69 | 0.00620402 |
29 | 1.12 | 0.01390308 |
Perhaps we see if the MAID model can tell us what this ratio should be
Media:NH3positivepionMAID.pdfMedia:ND3negativepionMAID.pdf
- 1.) Table 1.
Pion Paddle Number | error | |||
1 | 77 | 65 | 0.4075770 | 0.0009842584 |
2 | 159 | 97 | 0.5639721 | 0.0006539302 |
3 | 149 | 105 | 0.4882354 | 0.0005272353 |
4 | 393 | 126 | 1.0731347 | 0.0007711509 |
5 | 444 | 141 | 1.0834182 | 0.0006573745 |
6 | 484 | 130 | 1.2809561 | 0.0008725428 |
7 | 496 | 140 | 1.2189500 | 0.0007440855 |
8 | 578 | 151 | 1.3169920 | 0.0007160697 |
9 | 471 | 127 | 1.2759964 | 0.0009002428 |
10 | 599 | 118 | 1.7465341 | 0.0013677534 |
11 | 497 | 115 | 1.4869309 | 0.0012131589 |
12 | 582 | 151 | 1.3261062 | 0.0007208959 |
13 | 588 | 121 | 1.6719536 | 0.0012616248 |
14 | 546 | 136 | 1.3812936 | 0.0008776225 |
15 | 558 | 92 | 2.0867894 | 0.0023701069 |
16 | 505 | 107 | 1.6238274 | 0.0014740763 |
17 | 454 | 115 | 1.3582830 | 0.0011103103 |
18 | 388 | 86 | 1.5522638 | 0.0019569046 |
19 | 359 | 80 | 1.5439624 | 0.0021696589 |
20 | 304 | 64 | 1.6342777 | 0.0032068058 |
21 | 272 | 44 | 2.1269069 | 0.0073027548 |
22 | 215 | 38 | 1.9466466 | 0.0083331144 |
23 | 119 | 29 | 1.4118261 | 0.0091055132 |
24 | 123 | 33 | 1.2823997 | 0.0068297700 |
25 | 102 | 45 | 0.7798659 | 0.0026920919 |
26 | 82 | 36 | 0.7836887 | 0.0037785779 |
27 | 99 | 28 | 1.2164924 | 0.0083029104 |
28 | 75 | 25 | 1.0321754 | 0.0084089279 |
29 | 88 | 19 | 1.5935340 | 0.0193377338 |
30 | 43 | 10 | 1.4794514 | 0.0470776577 |
31 | 30 | 5 | 2.0643508 | 0.1850680665 |
32 | 59 | 17 | 1.1940853 | 0.0172383351 |
33 | 83 | 24 | 1.1898689 | 0.0102416449 |
34 | 85 | 26 | 1.1248065 | 0.0086048876 |
35 | 93 | 24 | 1.3332266 | 0.0114363482 |
36 | 79 | 23 | 1.1817660 | 0.0108450951 |
37 | 34 | 9 | 1.2997764 | 0.0485842596 |
38 | 32 | 20 | 0.5504936 | 0.0068650227 |
39 | 38 | 4 | 3.2685555 | 0.4088076301 |
40 | 12 | 4 | 1.0321754 | 0.1313894981 |
41 | 30 | 10 | 1.0321754 | 0.0332392060 |
42 | 5 | 3 | 0.5734308 | 0.1216930868 |
- 2.) Table 2.
paddleNumber | error | |||
1 | 59 | 5 | 30.21 | 2.70258040 |
2 | 79 | 14 | 14.45 | 0.27652327 |
3 | 73 | 8 | 23.36 | 1.03300637 |
4 | 65 | 59 | 2.82 | 0.00822726 |
5 | 55 | 49 | 2.87 | 0.01094524 |
6 | 80 | 52 | 3.94 | 0.01185748 |
7 | 65 | 49 | 3.4 | 0.01183225 |
8 | 113 | 75 | 3.86 | 0.00675056 |
9 | 117 | 72 | 4.16 | 0.00756073 |
10 | 200 | 115 | 4.45 | 0.00393821 |
11 | 226 | 166 | 3.49 | 0.00192550 |
12 | 328 | 178 | 4.72 | 0.00213914 |
13 | 391 | 259 | 3.86 | 0.00105330 |
14 | 360 | 287 | 3.21 | 0.00081064 |
15 | 389 | 278 | 3.58 | 0.00090286 |
16 | 426 | 274 | 3.98 | 0.00098738 |
17 | 437 | 284 | 3.94 | 0.00092912 |
18 | 444 | 241 | 4.72 | 0.00135761 |
19 | 419 | 291 | 3.69 | 0.00085791 |
20 | 397 | 329 | 3.09 | 0.00064841 |
21 | 407 | 286 | 3.64 | 0.00087414 |
22 | 346 | 260 | 3.41 | 0.00096976 |
23 | 274 | 235 | 2.98 | 0.00105807 |
24 | 430 | 361 | 3.05 | 0.00056086 |
25 | 478 | 388 | 3.15 | 0.00051121 |
26 | 471 | 390 | 3.09 | 0.00050259 |
27 | 420 | 385 | 2.79 | 0.00049185 |
28 | 342 | 326 | 2.69 | 0.00062326 |
29 | 266 | 280 | 2.43 | 0.00076396 |
30 | 78 | 103 | 1.94 | 0.00337017 |
31 | 33 | 29 | 2.91 | 0.02416684 |
32 | 34 | 30 | 2.9 | 0.02293226 |
33 | 32 | 32 | 2.56 | 0.01999906 |
34 | 28 | 30 | 2.39 | 0.02171314 |
35 | 17 | 22 | 1.98 | 0.03411592 |
36 | 21 | 14 | 3.84 | 0.08345855 |
37 | 7 | 9 | 1.99 | 0.13036518 |
38 | 27 | 20 | 3.46 | 0.04582149 |
39 | 24 | 33 | 1.86 | 0.01863261 |
40 | 31 | 35 | 2.27 | 0.01710150 |
41 | 76 | 71 | 2.74 | 0.00617114 |
42 | 16 | 31 | 1.32 | 0.02201769 |
43 | 18 | 22 | 2.09 | 0.03411970 |
44 | 23 | 18 | 3.27 | 0.05209530 |
- 3.) Table 3.
Pion Paddle Number | error | ||
0.91 | 45 | 89 | 1.29 | 0.004556
1.91 | 86 | 127 | 1.73 | 0.002488
2.91 | 82 | 133 | 1.58 | 0.002361
3.91 | 91 | 330 | 0.71 | 0.000822
4.91 | 94 | 348 | 0.69 | 0.000766
5.91 | 125 | 360 | 0.89 | 0.000649
6.91 | 120 | 399 | 0.77 | 0.000594
7.91 | 148 | 443 | 0.86 | 0.000484
8.91 | 128 | 387 | 0.85 | 0.000595
9.91 | 121 | 510 | 0.61 | 0.000459
10.91 | 104 | 417 | 0.64 | 0.000607
11.91 | 145 | 449 | 0.83 | 0.000481
12.91 | 108 | 469 | 0.59 | 0.000528
13.91 | 113 | 449 | 0.64 | 0.000541
14.91 | 104 | 401 | 0.66 | 0.000631
15.91 | 98 | 427 | 0.59 | 0.000609
16.91 | 100 | 335 | 0.76 | 0.000774
17.91 | 70 | 316 | 0.57 | 0.000973
18.91 | 65 | 269 | 0.62 | 0.001189
19.91 | 56 | 270 | 0.53 | 0.001273
20.91 | 37 | 200 | 0.47 | 0.002111
21.91 | 27 | 149 | 0.46 | 0.003316
22.91 | 28 | 99 | 0.72 | 0.004942
23.91 | 32 | 112 | 0.73 | 0.004087
24.91 | 42 | 103 | 1.04 | 0.003963
25.91 | 25 | 70 | 0.91 | 0.007479
26.91 | 24 | 66 | 0.93 | 0.008105
27.91 | 27 | 39 | 1.77 | 0.014578
28.91 | 24 | 48 | 1.28 | 0.011546
- 4.) Table 4.
Pion Paddle Number | error | ||
3.89 | 81 | 69 | 0.4 | 0.000896
4.89 | 84 | 87 | 0.33 | 0.000595
5.89 | 84 | 76 | 0.38 | 0.000757
6.89 | 75 | 98 | 0.26 | 0.000488
7.89 | 91 | 123 | 0.25 | 0.000348
8.89 | 115 | 141 | 0.28 | 0.000283
9.89 | 207 | 254 | 0.28 | 0.000117
10.89 | 212 | 300 | 0.24 | 0.000092
11.89 | 284 | 413 | 0.24 | 0.000057
12.89 | 322 | 501 | 0.22 | 0.000043
13.89 | 359 | 521 | 0.24 | 0.000040
14.89 | 365 | 565 | 0.22 | 0.000036
15.89 | 415 | 523 | 0.27 | 0.000040
16.89 | 444 | 526 | 0.29 | 0.000039
17.89 | 405 | 555 | 0.25 | 0.000036
18.89 | 414 | 528 | 0.27 | 0.000039
19.89 | 387 | 502 | 0.27 | 0.000042
20.89 | 408 | 505 | 0.28 | 0.000042
21.89 | 352 | 457 | 0.27 | 0.000048
22.89 | 298 | 358 | 0.29 | 0.000070
23.89 | 522 | 547 | 0.33 | 0.000038
24.89 | 530 | 608 | 0.3 | 0.000032
25.89 | 571 | 590 | 0.33 | 0.000034
26.89 | 523 | 564 | 0.32 | 0.000036
27.89 | 422 | 440 | 0.33 | 0.000052
28.89 | 368 | 342 | 0.37 | 0.000079
29.89 | 101 | 108 | 0.32 | 0.000427
Corrected one just has values of 1.
2.) Kinematic plots for all 8 conditions
4/4/11
1.) Document the electron efficiency -vs- paddle ( for each target separately) and pion efficiency -vs- paddle in thesis
Inclusive detected electrons -vs- Q-squared |
*Inclusive
Media:ND3andNH3electronpaddlenumberinclusive.pdf
Media:NH3Q2inclusive.pdfMedia:ND3Q2inclusive.pdf
- Semi Inclusive
Media:ND3electronpaddlenumbersemi_inclusive.pdfMedia:NH3electronpaddlenumbersemi_inclusive.pdf
2.) Compare to MAI2007 for paddles with unity pion efficiency ratios
Total Cross Section:
where
is pion azimuthal angle in CM frame, - virtual photon polarization.
where
, (the difference between the initial and final energy of the electron).- Four momentum transferred square.
- electron scattering angle.
h - electron helicity.
where
Media:NH3positivepionMAID.pdfMedia:ND3negativepionMAID.pdf
5/11/11
1.) Document the electron efficiency -vs- paddle ( for each target separately) and pion efficiency -vs- paddle in thesis
Zoom in on the Q^2 range from 0.9 to 1.3 fine binning.
2.) Media:X_BEpaddlenumber5and10.pdf
3.)
MAID is the dominant error? The data agree with MAID statistically.
Yes it is.
5/23/11
1.) Detector is not working. Two GEM foils are packed for shipping. The current measured across the GEM Foils at ~120 Volts is 1-5 nAmp.
Media:theorynd3bn_nh3bp_ratio.pdf
5/25/11
In this case, corrections from the inclusive data are applied.
6/27/11
1.) Analyze data for asymmetries.
a.) Charge asymmetry -vs- run number plot
b.) Rate sums and difference plots i.) Insert histogram names here and their definitions
2.)Histograms for error calculation
3.) Dilution factor histogram names and definition
07/23/11
Make it easier to see the differences. Subtract experiment from Maid2007 and put the before and after corrections results on the same graph. Use different error bars for the error from the correction factor and the statistical uncertainties (1/sqrt(N).
Exclusive cases
07/28/11
- 1.) Pion Paddle number vs ratio for MAID2007-Experiment :
You need to make the above graph in black and white then it will be ready for your thesis. This means you need to change the error bars so you can identify them when they are in black and white.
- I would conclude from the above that the correction does not impact inclusive single pion production while it does make the semi-inclusive data less dependent on Torus polarity.
You should add the systematic error as a separate uncertainty to the graph. Usually you can remove the riser from the larger uncertainty and include the riser (the horizontal bar) on the smaller uncertainty..
- 2.) Charge Asymmetry:
You have a choice for the charge asymmetry, either do a linear fit to run number or average over all runs. I prefer averaging over all runs and displaying it as a histogram for the data set to measure false asymmetries from the beam alone
ND3Bn
08/01/11
Charge Asymmetry
- 1). ND3Bp
- 2). NH3Bn
- 3). NH3Bp
Calculating and