CLAS Physics Database

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Measurement E141M97

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Experiment: Measurement of ep→e′nπ⁺ at 1.6<W<2.0 GeV and extraction of nucleon resonance electrocoupling at CLAS, 2014

Spokespersons: K. Park, V.D. Burkert, I.G. Aznauryan

Experiment comment: polarization of electron beam : ~80%

Publication:

// CLAS-Analysis Note 2014-105 arXiv:1412.0274

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

Q² :	4 GeV²
W :	1.645 GeV
E_beam :	5.499 GeV

Select data slice:
cos(θ) =

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

Parameter (X axis): φ, degree

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

Measured data:

cos(θ)	φ, degree	dσ/dΩ, mcbn/rad	Data errors, mcbn/rad	Systematic errors, mcbn/rad
-0.9	45	0.1417	0.0528	0.0207
-0.9	75	0.0221	0.0077	0.0028
-0.9	105	0.1778	0.0485	0.0173
-0.9	135	0.2198	0.0698	0.0224
-0.9	165	0.8824	0.336	0.1204
-0.9	195	1.7799	0.8811	0.28
-0.9	225	0.1492	0.0387	0.0161
-0.9	255	0.1604	0.0436	0.0137
-0.9	315	0.1687	0.0516	0.0139
-0.7	45	0.2087	0.0547	0.0037
-0.7	75	0.1501	0.0505	0.0076
-0.7	105	0.2295	0.0573	0.0187
-0.7	135	0.1927	0.0716	0.0192
-0.7	165	0.1515	0.0311	0.0118
-0.7	195	0.1805	0.0473	0.0141
-0.7	225	0.2012	0.0589	0.018
-0.7	255	0.2005	0.0483	0.0162
-0.5	45	0.2066	0.0633	0.007
-0.5	75	0.2478	0.0668	0.0058
-0.5	105	0.2107	0.0471	0.0084
-0.5	135	0.142	0.0391	0.0109
-0.5	165	0.1741	0.0463	0.015
-0.5	195	0.1575	0.0371	0.0051
-0.5	225	0.1805	0.0424	0.0018
-0.5	255	0.2506	0.0706	0.0098
-0.5	285	0.1924	0.0495	0.0038
-0.3	15	0.0243	0.0133	0.0015
-0.3	45	0.0477	0.0194	0.0024
-0.3	75	0.2631	0.0805	0.003
-0.3	105	0.1773	0.0444	0.0076
-0.3	135	0.2676	0.0522	0.0086
-0.3	165	0.2188	0.0484	0.0153
-0.3	195	0.2926	0.0559	0.0206
-0.3	225	0.2328	0.0498	0.0076
-0.3	255	0.2236	0.0505	0.0319
-0.3	285	0.2593	0.0964	0.0061
-0.3	315	0.0211	0.0107	0.0008
-0.1	45	0.1784	0.0576	0.0017
-0.1	75	0.213	0.0493	0.0024
-0.1	105	0.1544	0.0321	0.0026
-0.1	135	0.2127	0.0469	0.0021
-0.1	165	0.2319	0.0458	0.0045
-0.1	195	0.2302	0.0419	0.0051
-0.1	225	0.2472	0.0489	0.0212
-0.1	255	0.2116	0.0488	0.0036
-0.1	285	0.1773	0.0555	0.0053
-0.1	315	0.129	0.056	0.003
0.1	45	0.1517	0.0474	0.0025
0.1	75	0.1939	0.0437	0.0032
0.1	105	0.2485	0.0632	0.006
0.1	135	0.1741	0.0388	0.005
0.1	165	0.1457	0.0279	0.0242
0.1	195	0.1695	0.036	0.0048
0.1	225	0.1461	0.0376	0.0043
0.1	255	0.2234	0.0758	0.0199
0.1	285	0.2172	0.0479	0.0082
0.1	315	0.1572	0.0513	0.0026
0.3	15	0.2992	0.2188	0.0202
0.3	45	0.2324	0.0447	0.0056
0.3	75	0.2666	0.0527	0.0051
0.3	105	0.2182	0.0397	0.0064
0.3	135	0.2136	0.046	0.0095
0.3	165	0.1058	0.0172	0.0069
0.3	195	0.1585	0.0264	0.0091
0.3	225	0.1954	0.0751	0.0102
0.3	255	0.1741	0.0543	0.0093
0.3	285	0.1872	0.0409	0.011
0.3	315	0.248	0.0773	0.0059
0.5	15	0.1314	0.0611	0.005
0.5	45	0.2351	0.063	0.007
0.5	75	0.1999	0.0426	0.0134
0.5	105	0.2302	0.0438	0.0079
0.5	135	0.2631	0.0577	0.0349
0.5	165	0.2058	0.0556	0.0144
0.5	195	0.1673	0.0314	0.0095
0.5	225	0.1625	0.0453	0.0218
0.5	255	0.2202	0.0636	0.0196
0.5	285	0.305	0.0887	0.0185
0.5	315	0.2873	0.0926	0.0089
0.7	15	0.1669	0.0374	0.0074
0.7	45	0.1941	0.0424	0.0113
0.7	75	0.2655	0.0568	0.0182
0.7	105	0.2296	0.0524	0.0119
0.7	135	0.2058	0.044	0.0116
0.7	165	0.1618	0.0319	0.0102
0.7	195	0.178	0.0413	0.0127
0.7	225	0.1778	0.042	0.0134
0.7	255	0.2386	0.047	0.0153
0.7	285	0.2056	0.0548	0.0172
0.7	315	0.223	0.0588	0.0163
0.7	345	0.2816	0.0615	0.0136
0.9	15	0.1962	0.03	0.0175
0.9	45	0.1843	0.0356	0.012
0.9	75	0.152	0.0279	0.0285
0.9	105	0.1542	0.0337	0.0288
0.9	135	0.1737	0.0308	0.0125
0.9	165	0.1826	0.0363	0.0122
0.9	195	0.1683	0.0314	0.0126
0.9	225	0.166	0.0329	0.0096
0.9	255	0.1624	0.0326	0.0071
0.9	285	0.1748	0.0317	0.0162
0.9	315	0.1932	0.0344	0.0115
0.9	345	0.1955	0.0331	0.012