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Measurement E8M19

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Experiment: E89-038 CLAS experiment, 1999

Spokespersons: V. Burkert, R. Minehart

Experiment comment: Beam energy 1.515 GeV. Global 5.8% scaling systematic uncertainty for all data points

Measurement comment: Global 5.8% scaling systematic uncertainty

Publication:

Quantity measured: dσ/dΩ, mcbn/sterad
Differential cross section.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: π+n, polarization: none

Q2 : 0.25 — 0.35 GeV2
W : 1.46 — 1.48 GeV
Ebeam : 1.515 GeV

Select data slice:
θπ = deg

Fit φ dependence:

 Observable quantity measured (Y axis): dσ/dΩ, mcbn/sterad
Plot measurement data

Parameter (X axis): φπ, deg

Click here to get data in text file, delimited with tabs.

Click here to get calculated fit coefficients in text file, delimited with tabs.

Measured data:

θπ,
deg 		φπ,
deg 		dσ/dΩ,
mcbn/sterad 		Data errors,
mcbn/sterad 		Systematic errors,
mcbn/sterad
7.5 15 12.53 1.054 0.9159
7.5 45 12.16 1.304 0.9308
7.5 75 12.04 1.203 0.9209
7.5 105 9.467 1.06 0.8293
7.5 135 8.17 0.7986 0.8026
7.5 165 9.979 0.9562 0.8368
7.5 195 6.91 0.6661 0.7433
7.5 225 8.299 0.8787 0.8421
7.5 255 11.13 1.15 0.8773
7.5 285 12.38 1.381 0.8951
7.5 315 11.66 1.261 0.8693
7.5 345 11.68 0.9743 0.9213
22.5 75 9.795 1.915 0.8566
22.5 105 10.85 1.834 0.8986
22.5 135 7.449 0.6146 0.8286
22.5 165 4.851 0.3941 0.7783
22.5 195 4.925 0.3883 0.7884
22.5 225 5.338 0.4878 0.7841
22.5 255 8.238 1.335 0.8391
37.5 45 8.797 0.7084 0.6502
37.5 75 10.06 0.4484 0.7024
37.5 105 8.711 0.8901 0.661
37.5 165 4.053 1.485 0.549
37.5 195 3.051 0.6265 0.5553
37.5 255 9.434 0.8089 0.6514
37.5 285 9.608 0.3947 0.6756
37.5 315 9.241 1.007 0.656
52.5 45 6.019 0.5925 0.487
52.5 75 9.242 0.4481 0.5673
52.5 135 5.833 0.6619 0.4786
52.5 165 3.29 0.1769 0.4388
52.5 195 3.215 0.1777 0.4408
52.5 225 5.445 0.7813 0.4798
52.5 285 9.831 0.4834 0.5941
52.5 315 6.332 0.7714 0.5057
67.5 15 3.425 0.5448 0.4084
67.5 45 6.248 0.4907 0.4726
67.5 105 7.663 0.3115 0.5161
67.5 135 5.515 0.3365 0.4582
67.5 165 2.903 0.158 0.4032
67.5 195 2.896 0.1598 0.4036
67.5 225 6.183 0.372 0.4735
67.5 255 8.975 0.3489 0.5508
67.5 315 6.027 0.4529 0.4611
67.5 345 2.593 0.3846 0.3924
82.5 15 2.697 1.125 0.3482
82.5 45 4.128 0.8019 0.3758
82.5 75 6.303 0.3878 0.437
82.5 105 6.775 0.2645 0.4635
82.5 135 4.979 0.313 0.406
82.5 165 2.458 0.1671 0.3557
82.5 195 2.175 0.1363 0.3511
82.5 225 3.841 0.2506 0.3809
82.5 255 6.629 0.262 0.4448
82.5 285 6.688 0.4369 0.4408
82.5 315 4.688 0.7707 0.3908
97.5 15 1.544 0.2484 0.2425
97.5 45 3.578 0.2009 0.2826
97.5 75 4.672 0.3114 0.3219
97.5 105 5.196 0.2369 0.3389
97.5 135 3.495 0.26 0.2992
97.5 165 2.542 0.2082 0.2759
97.5 195 2.33 0.1878 0.2676
97.5 225 4.002 0.2805 0.3068
97.5 255 5.072 0.2342 0.3445
97.5 285 5.709 0.3711 0.3516
97.5 315 3.139 0.1877 0.2745
97.5 345 1.561 0.2175 0.2456
112.5 15 1.224 0.2049 0.1835
112.5 45 2.432 0.1843 0.2059
112.5 75 3.503 0.2542 0.2426
112.5 105 3.596 0.206 0.2516
112.5 135 2.952 0.2245 0.2305
112.5 165 2.108 0.1982 0.2182
112.5 195 1.842 0.1619 0.2062
112.5 225 2.605 0.2077 0.2273
112.5 255 4.036 0.2127 0.2592
112.5 285 3.941 0.3055 0.2635
112.5 315 2.146 0.1816 0.2036
112.5 345 0.8722 0.1419 0.1776
127.5 15 0.956 0.1389 0.1745
127.5 45 1.564 0.1521 0.1834
127.5 75 2.398 0.1909 0.2056
127.5 105 3.444 0.9066 0.2431
127.5 135 2.672 0.3343 0.2197
127.5 165 2.651 0.6053 0.2096
127.5 195 1.229 0.1714 0.179
127.5 225 2.186 0.2307 0.2049
127.5 255 2.818 0.3085 0.2236
127.5 285 2.737 0.2141 0.2217
127.5 315 1.782 0.1968 0.1869
127.5 345 0.8057 0.1222 0.1715
142.5 15 0.662 0.09584 0.2181
142.5 45 1.232 0.2355 0.2287
142.5 75 1.527 0.1664 0.2301
142.5 105 2.168 0.4812 0.2645
142.5 255 2.244 0.6769 0.2389
142.5 285 1.662 0.1918 0.2372
142.5 315 1.458 0.2991 0.236
142.5 345 0.6366 0.1271 0.08413
157.5 15 0.4713 0.1174 0.03212
157.5 345 0.6343 0.1817 0.1689