CLAS Physics Database

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Measurement E8M27

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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 :	0.35 — 0.45 GeV²
W :	1.14 — 1.16 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	4.982	1.097	0.4886
7.5	45	3.726	0.7803	0.4406
7.5	75	4.302	1.002	0.4762
7.5	105	3.926	0.7563	0.4441
7.5	135	4.431	0.8461	0.4588
7.5	165	5.121	0.882	0.4923
7.5	195	5.393	0.9274	0.4705
7.5	225	4.304	0.7252	0.4714
7.5	255	6.356	1.397	0.5249
7.5	285	4.922	1.122	0.4589
7.5	315	5.005	1.276	0.5018
7.5	345	5.688	1.373	0.4665
22.5	15	3.172	0.4717	0.3578
22.5	45	4.57	0.8525	0.3758
22.5	75	5.666	0.6709	0.3949
22.5	105	5.735	0.6433	0.4333
22.5	135	5.87	0.5594	0.4204
22.5	165	5.914	0.575	0.4004
22.5	195	5.206	0.4795	0.3873
22.5	225	7.238	0.6396	0.4695
22.5	255	5.447	0.6404	0.4017
22.5	285	4.111	0.6261	0.3647
22.5	315	3.119	0.5184	0.3629
22.5	345	2.999	0.4438	0.3587
37.5	15	2.91	0.5333	0.3744
37.5	45	4.534	1.061	0.3917
37.5	75	3.686	0.6286	0.3928
37.5	105	8.064	0.8256	0.5071
37.5	135	6.881	0.5534	0.4449
37.5	165	6.319	0.4583	0.4398
37.5	195	6.482	0.4796	0.442
37.5	225	6.886	0.5726	0.4558
37.5	255	6.832	0.6953	0.4559
37.5	285	5.802	1.069	0.4225
37.5	315	4.442	1.066	0.397
37.5	345	1.949	0.3497	0.3627
52.5	45	2.53	0.4022	0.4148
52.5	75	6.783	0.6949	0.4985
52.5	105	6.839	0.7742	0.497
52.5	135	7.844	0.6969	0.5125
52.5	165	6.812	0.4862	0.486
52.5	195	6.941	0.485	0.5146
52.5	225	9.125	0.7332	0.5581
52.5	255	6.156	0.7064	0.4686
52.5	285	5.97	0.668	0.4705
52.5	315	3.688	0.6557	0.4409
67.5	45	4.434	0.3746	0.4549
67.5	75	7.397	0.442	0.529
67.5	105	8.003	0.6619	0.5167
67.5	135	8.415	0.8511	0.5414
67.5	165	6.269	0.4109	0.5
67.5	195	7.235	0.4555	0.5191
67.5	225	7.386	0.7637	0.5092
67.5	255	9.024	0.7221	0.5728
67.5	285	6.782	0.4373	0.4969
67.5	315	4.551	0.3427	0.4596
82.5	45	5.006	0.5733	0.5087
82.5	75	7.833	0.4486	0.5621
82.5	105	9.332	0.5969	0.5975
82.5	135	7.504	0.6305	0.5578
82.5	165	6.103	0.3652	0.5347
82.5	195	6.546	0.3839	0.5549
82.5	225	8.44	0.7366	0.5831
82.5	255	8.761	0.5088	0.5858
82.5	285	7.876	0.4445	0.5598
82.5	315	5.495	0.5363	0.5206
97.5	45	4.904	0.6622	0.5237
97.5	75	7.824	0.5102	0.5661
97.5	105	9.052	0.4933	0.6068
97.5	135	6.953	0.6113	0.5663
97.5	165	5.462	0.401	0.5345
97.5	195	5.301	0.4077	0.5674
97.5	225	7.43	0.8306	0.5526
97.5	255	9.677	0.5002	0.6148
97.5	285	8.002	0.5082	0.5907
97.5	315	4.907	0.7678	0.5123
112.5	15	3.992	1.547	0.5261
112.5	45	5.536	0.5272	0.5468
112.5	75	8.132	0.778	0.5935
112.5	105	8.976	0.5025	0.6234
112.5	135	7.651	1.158	0.586
112.5	165	5.077	0.5209	0.5424
112.5	195	4.726	0.4289	0.5393
112.5	225	6.281	0.6364	0.5653
112.5	255	8.391	0.4627	0.6025
112.5	285	6.985	0.6139	0.5668
112.5	315	5.058	0.5539	0.536
112.5	345	3.246	0.7515	0.5113
127.5	15	5.552	2.568	0.5512
127.5	45	6.501	0.6184	0.5652
127.5	75	7.424	0.9858	0.6003
127.5	105	8.562	0.7505	0.6153
127.5	135	6.058	0.8881	0.5634
127.5	165	6.031	2.451	0.6044
127.5	225	9.097	2.148	0.6837
127.5	255	8.702	0.6787	0.6267
127.5	285	7.415	0.8389	0.6006
127.5	315	6.181	0.6476	0.5748
127.5	345	2.985	0.8731	0.5193
142.5	15	5.098	1.556	1.096
142.5	45	5.883	0.8353	1.084
142.5	75	7.33	1.249	1.105
142.5	105	8.656	1.894	1.109
142.5	285	8.349	1.411	1.145
142.5	315	8.128	1.794	1.069
142.5	345	6.057	2.742	1.062