CLAS Physics Database

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Measurement E8M52

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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:

under preparation //

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 :	0.45 — 0.55 GeV²
W :	1.18 — 1.2 GeV
E_beam :	1.515 GeV

Select data slice:
θ_π = deg

Fit φ dependence:

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

Parameter (X axis): φ_π, 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:

θ_π, deg	φ_π, deg	dσ/dΩ, mcbn/sterad	Data errors, mcbn/sterad	Systematic errors, mcbn/sterad
7.5	45	3.821	1.235	0.5802
7.5	75	5.809	1.346	0.6264
7.5	105	4.198	0.8876	0.6013
7.5	135	6.695	1.285	0.6046
7.5	165	6.198	1.116	0.5898
7.5	195	6.271	1.503	0.648
7.5	225	7.8	1.983	0.6439
7.5	255	6.559	1.091	0.6236
7.5	285	2.606	0.6867	0.5658
7.5	315	4.328	1.621	0.5821
22.5	75	4.214	0.686	0.5277
22.5	105	5.564	0.6068	0.5491
22.5	135	6.85	0.5907	0.5591
22.5	165	6.882	0.5589	0.5571
22.5	195	7.739	0.6143	0.6021
22.5	225	5.866	0.5131	0.5562
22.5	255	6.828	0.7155	0.5667
22.5	285	5.993	1.136	0.5265
22.5	315	6.304	2.731	0.5415
37.5	15	4.123	0.763	0.5366
37.5	75	6.423	0.8274	0.5686
37.5	105	9.367	0.7943	0.6273
37.5	135	8.387	0.5845	0.5979
37.5	165	9.244	0.5714	0.6272
37.5	195	8.064	0.5243	0.6083
37.5	225	9.603	0.6452	0.6401
37.5	255	8.976	0.8498	0.6365
37.5	285	8.032	1.064	0.633
37.5	345	3.966	1.092	0.5227
52.5	45	6.52	1.404	0.713
52.5	75	9.495	0.6821	0.7483
52.5	105	10.14	0.767	0.7801
52.5	135	12.69	0.8256	0.8207
52.5	165	7.964	0.4398	0.7472
52.5	195	8.691	0.4679	0.766
52.5	225	9.463	0.654	0.759
52.5	255	11.02	0.8456	0.8131
52.5	285	9.862	0.6245	0.7803
52.5	315	7.171	2.289	0.7965
67.5	45	9.841	1.916	0.8621
67.5	75	12.26	0.5647	0.8687
67.5	105	15.23	0.8398	0.9353
67.5	135	11.15	0.7423	0.8694
67.5	165	8.61	0.4874	0.8163
67.5	195	8.249	0.4844	0.8136
67.5	225	13.14	0.8745	0.9158
67.5	255	13.88	0.7495	0.9195
67.5	285	12.23	0.5391	0.8941
67.5	315	8.697	1.074	0.8192
82.5	45	8.718	0.7012	0.7929
82.5	75	13.91	0.578	0.8963
82.5	105	14.35	0.6698	0.9247
82.5	135	11.28	0.7614	0.8608
82.5	165	8.003	0.4389	0.7913
82.5	195	8.509	0.472	0.7832
82.5	225	11.27	0.7885	0.8388
82.5	255	15.12	0.6473	0.9542
82.5	285	13.36	0.5466	0.8854
82.5	315	8.485	0.6407	0.7901
97.5	15	7.241	1.72	0.7133
97.5	45	10.62	0.7409	0.7968
97.5	75	13.04	0.6894	0.8185
97.5	105	15.42	0.667	0.9055
97.5	135	12.21	0.6861	0.8344
97.5	165	7.237	0.4285	0.7243
97.5	195	7.526	0.4361	0.7419
97.5	225	11.31	0.6423	0.8153
97.5	255	14.92	0.6347	0.8826
97.5	285	13.9	0.6605	0.8538
97.5	315	9.787	0.6639	0.7648
97.5	345	4.812	0.7568	0.6956
112.5	15	4.843	0.6992	0.6419
112.5	45	9.712	0.5498	0.7398
112.5	75	14.57	0.9211	0.8484
112.5	105	14.06	0.6057	0.8477
112.5	135	9.424	0.6583	0.7196
112.5	165	7.6	0.5724	0.6827
112.5	195	7.07	0.5388	0.6758
112.5	225	9.42	0.6106	0.7751
112.5	255	14.51	0.6122	0.8315
112.5	285	13.06	0.8726	0.793
112.5	315	9.379	0.5521	0.7263
112.5	345	6.26	0.9284	0.669
127.5	15	6.738	0.6913	0.6578
127.5	45	8.657	0.5399	0.6953
127.5	75	12.92	0.8796	0.7898
127.5	105	11.24	0.6568	0.7684
127.5	135	9.599	0.7153	0.7259
127.5	165	6.051	0.8958	0.6556
127.5	195	8.438	3.538	0.7093
127.5	225	8.461	0.6383	0.7139
127.5	255	10.47	0.59	0.7561
127.5	285	11.29	0.7795	0.7589
127.5	315	10.55	0.687	0.7413
127.5	345	6.189	0.7006	0.6582
142.5	15	5.87	0.856	0.7426
142.5	45	9.404	0.8192	0.8148
142.5	75	9.602	0.8828	0.7751
142.5	105	15.04	2.306	0.9523
142.5	255	8.776	1.028	0.8279
142.5	285	10.94	0.9857	0.8523
142.5	315	10.39	0.9538	0.842
142.5	345	10.04	1.649	0.8302
157.5	15	14.04	7.354	1.576
157.5	45	8.144	2.05	1.516
157.5	315	13.55	4.755	0.6433
157.5	345	8.634	2.551	0.6433