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Measurement E8M24

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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 : 1.56 — 1.58 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 view sliced data.

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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 45 11.5 5.042 1.337
7.5 75 25.96 17.9 1.519
7.5 105 8.932 1.447 1.153
7.5 135 17.55 2.121 1.506
7.5 165 10.31 1.035 1.166
7.5 195 10.49 1.107 1.181
7.5 225 9.366 1.228 1.176
7.5 255 12.41 2.434 1.199
7.5 285 14.5 4.403 1.183
7.5 315 16.99 8.647 1.301
22.5 75 9.184 1.79 0.7675
22.5 105 9.097 3.148 0.7974
22.5 135 7.019 0.8672 0.7222
22.5 165 5.957 0.4792 0.7029
22.5 195 4.861 0.3981 0.6866
22.5 225 7.882 1.209 0.7281
22.5 255 5.904 1.573 0.6999
22.5 285 9.138 2.947 0.7217
37.5 75 5.258 0.3186 0.4034
37.5 105 5.459 0.4638 0.4117
37.5 135 4.95 0.7423 0.4006
37.5 165 2.802 0.2763 0.3566
37.5 195 3.274 0.3321 0.3521
37.5 225 5.531 0.8317 0.3979
37.5 255 5.341 0.4034 0.4034
37.5 285 4.901 0.3007 0.3994
52.5 45 3.309 0.5105 0.3494
52.5 75 3.532 0.3366 0.3463
52.5 105 3.753 0.3322 0.3453
52.5 255 3.418 0.4174 0.3338
52.5 285 3.835 0.3718 0.3587
52.5 315 1.846 0.2881 0.3115
67.5 15 1.555 0.7366 0.1899
67.5 45 1.276 0.1315 0.1737
67.5 135 1.535 0.2045 0.1804
67.5 165 1.52 0.1535 0.1817
67.5 195 1.252 0.1149 0.1753
67.5 225 1.587 0.1795 0.1891
67.5 285 2.554 0.7083 0.2035
67.5 315 1.305 0.1429 0.1776
67.5 345 0.5634 0.3 0.08473
82.5 45 1.27 0.5059 0.1159
82.5 75 2.215 0.8115 0.1285
82.5 105 1.041 0.09182 0.1158
82.5 135 0.8912 0.112 0.113
82.5 165 0.9129 0.1095 0.1127
82.5 195 0.9154 0.09964 0.1144
82.5 225 1.093 0.1394 0.1185
82.5 255 1.325 0.1072 0.1265
82.5 285 1.273 0.2137 0.1213
82.5 315 0.7838 0.2175 0.1073
97.5 15 0.7093 0.3663 0.1171
97.5 45 0.9346 0.09708 0.1252
97.5 75 1.515 0.1748 0.1463
97.5 105 1.333 0.1153 0.135
97.5 135 0.8559 0.09532 0.1254
97.5 165 0.7974 0.1209 0.1228
97.5 195 0.9987 0.1382 0.1332
97.5 225 1.04 0.1264 0.134
97.5 255 1.273 0.1167 0.1353
97.5 285 1.386 0.1692 0.136
97.5 315 1.173 0.1461 0.1312
97.5 345 0.774 0.1561 0.1222
112.5 15 0.9716 0.1595 0.1516
112.5 45 1.871 0.2131 0.1717
112.5 75 1.884 0.1763 0.1775
112.5 105 1.905 0.1735 0.1809
112.5 135 1.221 0.1243 0.159
112.5 165 1.026 0.1209 0.1603
112.5 195 0.9625 0.1671 0.158
112.5 225 1.301 0.1368 0.17
112.5 255 2.114 0.1731 0.1803
112.5 285 1.86 0.2082 0.1801
112.5 315 2.017 0.2768 0.175
112.5 345 1.208 0.1776 0.1557
127.5 15 1.54 0.2078 0.16
127.5 45 1.581 0.1794 0.1626
127.5 75 1.737 0.1705 0.1618
127.5 105 1.997 0.2015 0.1801
127.5 135 1.307 0.1713 0.1526
127.5 165 1.139 0.2039 0.1576
127.5 195 1.052 0.2159 0.1619
127.5 225 1.228 0.1428 0.1528
127.5 255 1.879 0.2328 0.1637
127.5 285 1.781 0.1869 0.1606
127.5 315 1.567 0.1894 0.1574
127.5 345 1.367 0.174 0.1531
142.5 15 2.878 1.399 0.2369
142.5 45 1.278 0.3089 0.2184
142.5 75 1.814 0.2489 0.2235
142.5 105 1.679 0.5181 0.2258
142.5 225 0.9101 0.2877 0.2165
142.5 285 1.887 0.3065 0.2448
142.5 315 2.362 0.6314 0.2299
142.5 345 1.404 0.2011 0.2247
157.5 15 1.949 0.6364 0.08896
157.5 345 1.116 0.3474 0.08891