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Measurement E8M23

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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 : 1.54 — 1.56 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 16.8 5.237 1.606
7.5 45 18.38 4.043 1.676
7.5 75 17.28 3.267 1.658
7.5 105 11.09 1.522 1.554
7.5 135 10.24 0.8581 1.56
7.5 165 8.973 0.7361 1.51
7.5 195 9.482 0.7653 1.52
7.5 225 14.44 1.42 1.608
7.5 255 15.09 1.909 1.597
7.5 285 17.46 4.382 1.688
7.5 315 18.39 5.229 1.709
7.5 345 18.84 8.088 1.607
22.5 75 9.054 1.988 0.9557
22.5 105 10.63 2.118 1.005
22.5 135 6.276 0.5664 0.9264
22.5 165 5.86 0.3967 0.9183
22.5 195 6.168 0.4029 0.9198
22.5 225 6.813 0.7466 0.9349
22.5 255 10.3 1.569 0.9777
22.5 285 9 1.599 0.9787
37.5 75 6.425 0.3066 0.4541
37.5 105 5.994 0.4342 0.4454
37.5 135 5.563 0.8538 0.4367
37.5 165 4.126 0.3648 0.3883
37.5 195 3.259 0.3403 0.3657
37.5 225 4.666 0.5518 0.4138
37.5 255 6.086 0.3796 0.4531
37.5 285 5.863 0.2764 0.4301
52.5 45 2.94 0.3263 0.4285
52.5 75 3.999 0.2957 0.4438
52.5 105 3.947 0.3812 0.442
52.5 255 3.939 0.8409 0.4676
52.5 285 3.988 0.244 0.4459
52.5 315 2.586 0.3609 0.4206
67.5 15 0.9769 0.1958 0.176
67.5 45 1.701 0.1283 0.1866
67.5 135 1.955 0.1647 0.194
67.5 165 1.408 0.1009 0.1839
67.5 195 1.405 0.09515 0.1846
67.5 225 1.992 0.1561 0.1972
67.5 255 3.324 0.8857 0.2252
67.5 285 2.978 0.5427 0.2312
67.5 315 1.812 0.1481 0.194
67.5 345 0.8059 0.2714 0.1716
82.5 45 1.206 0.2712 0.1489
82.5 75 1.796 0.2945 0.1672
82.5 105 1.941 0.1104 0.173
82.5 135 1.626 0.1387 0.1632
82.5 165 0.9077 0.07177 0.1438
82.5 195 1.081 0.08062 0.1464
82.5 225 1.466 0.1254 0.1578
82.5 255 2.3 0.1302 0.1775
82.5 285 1.892 0.2219 0.1646
82.5 315 1.722 0.3502 0.1552
97.5 15 1.028 0.1566 0.1299
97.5 45 1.599 0.1178 0.1445
97.5 75 2.226 0.1814 0.1632
97.5 105 2.348 0.1359 0.1786
97.5 135 1.627 0.1422 0.1545
97.5 165 0.9323 0.09131 0.1303
97.5 195 1.161 0.1219 0.1366
97.5 225 1.602 0.1386 0.1512
97.5 255 2.179 0.1312 0.1738
97.5 285 2.041 0.1761 0.1596
97.5 315 1.582 0.119 0.1452
97.5 345 1.219 0.1704 0.1333
112.5 15 1.228 0.1492 0.154
112.5 45 1.897 0.168 0.1664
112.5 75 2.714 0.2179 0.1955
112.5 105 2.886 0.1797 0.2065
112.5 135 1.902 0.1484 0.1802
112.5 165 1.169 0.1152 0.1557
112.5 195 1.271 0.1092 0.1602
112.5 225 1.769 0.1417 0.1769
112.5 255 2.47 0.1521 0.1885
112.5 285 3.068 0.2354 0.2082
112.5 315 1.839 0.1732 0.164
112.5 345 1.186 0.1227 0.15
127.5 15 1.549 0.1602 0.1835
127.5 45 1.996 0.1812 0.1936
127.5 75 2.4 0.1893 0.2099
127.5 105 2.378 0.1867 0.2174
127.5 135 2.045 0.1902 0.2101
127.5 165 1.223 0.1539 0.1855
127.5 195 1.187 0.1478 0.1784
127.5 225 2.209 0.3611 0.2176
127.5 255 2.308 0.1788 0.209
127.5 285 2.574 0.2241 0.2145
127.5 315 1.74 0.1655 0.1897
127.5 345 1.284 0.1511 0.1788
142.5 15 1.194 0.148 0.2061
142.5 45 1.729 0.2678 0.2223
142.5 75 1.85 0.1833 0.2287
142.5 105 2.038 0.4269 0.2207
142.5 135 1.607 0.2676 0.2164
142.5 225 1.397 0.3025 0.2175
142.5 255 2.287 0.4545 0.2406
142.5 285 2.425 0.2774 0.2331
142.5 315 1.714 0.2423 0.2217
142.5 345 1.654 0.2023 0.2161
157.5 15 1.717 0.3813 0.1122
157.5 345 2.148 1.021 0.1123