CLAS Physics Database

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Measurement E8M67

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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 :	1.48 — 1.5 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	15	6.779	1.713	0.9172
7.5	45	9.139	1.755	0.9348
7.5	75	8.115	1.646	0.9138
7.5	105	7.335	1.817	0.9071
7.5	135	5.027	0.9023	0.9138
7.5	165	4.595	1.102	0.9
7.5	195	4.52	0.7373	0.9031
7.5	225	5.883	1.196	0.9108
7.5	255	10.46	2.418	0.9923
7.5	285	5.304	1.457	0.9095
7.5	315	9.736	4.508	1.006
7.5	345	8.822	1.488	0.9799
22.5	75	7.829	1.585	0.5885
22.5	105	6.542	1.111	0.5343
22.5	135	9.67	4.423	0.6097
22.5	165	3.724	0.4411	0.4888
22.5	195	3.129	0.3785	0.4837
22.5	225	4.354	0.6215	0.514
22.5	255	6.509	1.183	0.5775
22.5	285	6.186	1.188	0.5482
37.5	75	6.178	0.4835	0.4862
37.5	105	5.636	0.67	0.4864
37.5	135	3.945	0.6474	0.4517
37.5	165	4.283	1.226	0.4521
37.5	195	4.91	1.91	0.4447
37.5	225	4.805	0.7671	0.4606
37.5	255	6.28	0.6812	0.5149
37.5	285	5.895	0.4563	0.4872
37.5	315	6.86	0.9661	0.5163
52.5	45	6.678	1.537	0.6042
52.5	75	6.943	0.5288	0.6161
52.5	105	6.301	0.8245	0.609
52.5	255	5.578	0.6922	0.5951
52.5	285	6.569	0.4741	0.6226
52.5	315	4.887	0.7033	0.5761
67.5	15	3.036	0.4809	0.3442
67.5	45	4.708	0.4268	0.3738
67.5	75	5.035	0.6978	0.4103
67.5	105	7.422	1.596	0.4177
67.5	135	4.559	0.3727	0.3757
67.5	165	2.849	0.2119	0.3459
67.5	195	3.167	0.2296	0.3517
67.5	225	4.286	0.3583	0.3716
67.5	255	5.675	1.313	0.4025
67.5	285	4.51	0.6865	0.4093
67.5	315	4.687	0.424	0.378
67.5	345	3.006	0.4561	0.3353
82.5	15	2.514	0.4541	0.3245
82.5	45	3.934	0.4914	0.3566
82.5	75	6.603	3.387	0.4067
82.5	105	5.084	0.3008	0.3827
82.5	135	4.373	0.3592	0.3646
82.5	165	2.913	0.2669	0.3343
82.5	195	3.073	0.2579	0.3415
82.5	225	3.581	0.3132	0.3626
82.5	255	4.901	0.3039	0.3857
82.5	285	5.903	0.8396	0.4307
82.5	315	4.04	0.7414	0.3531
82.5	345	1.843	0.567	0.3212
97.5	45	3.084	0.3095	0.3074
97.5	75	3.864	0.3566	0.3245
97.5	105	4.808	0.3084	0.3522
97.5	135	3.8	0.3392	0.3276
97.5	165	2.234	0.2586	0.2971
97.5	195	3.06	0.3516	0.308
97.5	225	3.689	0.3785	0.3198
97.5	255	4.38	0.3118	0.3446
97.5	285	4.219	0.4023	0.3351
97.5	315	2.709	0.2688	0.3117
112.5	15	1.733	0.6616	0.253
112.5	45	1.875	0.2573	0.2552
112.5	75	3.509	0.422	0.2883
112.5	105	3.663	0.3298	0.3003
112.5	135	2.783	0.3108	0.2751
112.5	165	2.538	0.2871	0.2689
112.5	195	2.7	0.3028	0.2778
112.5	225	3.258	0.3156	0.2987
112.5	255	4.271	0.4289	0.3139
112.5	285	4.399	0.4761	0.305
112.5	315	2.899	0.346	0.2775
112.5	345	2.037	0.6948	0.2595
127.5	15	1.096	0.601	0.2361
127.5	45	1.666	0.2778	0.2447
127.5	75	2	0.269	0.2506
127.5	105	2.949	0.3371	0.2703
127.5	135	2.393	0.32	0.2581
127.5	165	2.109	0.3412	0.2492
127.5	195	4.626	2.002	0.2853
127.5	225	2.413	0.4222	0.2486
127.5	255	3.875	0.406	0.3215
127.5	285	2.806	0.3904	0.2646
127.5	315	2.344	0.3795	0.2639
127.5	345	0.6755	0.1394	0.2354
142.5	15	0.5063	0.1182	0.1018
142.5	45	1.131	0.2501	0.2285
142.5	75	1.436	0.2197	0.2286
142.5	105	2.098	0.4968	0.232
142.5	135	1.886	0.4883	0.102
142.5	225	2.106	0.5882	0.2429
142.5	255	4.033	1.289	0.2924
142.5	285	2.543	0.4974	0.2475
142.5	315	1.237	0.3687	0.2275
142.5	345	0.5667	0.138	0.1018
157.5	15	0.7489	0.3872	0.02623
157.5	345	0.1508	0.07327	0.0261