CLAS Physics Database

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Measurement E8M84

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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 :	0.55 — 0.65 GeV²
W :	1.4 — 1.42 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
22.5	75	5.476	2.144	0.548
22.5	135	6.412	1.988	0.5836
22.5	195	3.332	1.233	0.551
37.5	45	5.246	1.319	0.6125
37.5	75	6.034	1.295	0.6218
37.5	105	5.862	2.186	0.6162
37.5	255	6.042	2.143	0.6091
37.5	285	4.607	0.8163	0.6036
52.5	45	4.872	1.3	0.5112
52.5	75	4.449	0.7214	0.5408
52.5	165	2.552	0.7105	0.491
52.5	195	4.462	1.987	0.535
52.5	285	5.39	1.246	0.5437
67.5	45	2.909	1.064	0.5313
67.5	105	4.105	1.301	0.5432
67.5	135	3.775	0.7135	0.5449
67.5	165	4.291	1.704	0.5523
67.5	195	3.443	1.179	0.5371
67.5	225	2.883	0.733	0.5225
67.5	255	2.554	0.5117	0.5249
67.5	315	2.173	0.6896	0.5196
82.5	45	2.377	0.7178	0.4302
82.5	105	2.591	0.3723	0.45
82.5	135	2.103	0.5325	0.4391
82.5	165	2.135	0.6659	0.4295
82.5	195	2.112	0.5801	0.4337
82.5	255	2.835	0.5537	0.4403
97.5	45	1.287	0.4038	0.4313
97.5	105	3.87	1.498	0.4759
97.5	165	1.328	0.3944	0.4295
97.5	195	1.933	0.8035	0.436
97.5	255	3.214	1.163	0.4514
97.5	285	2.341	0.9229	0.4449
112.5	165	1.202	0.4288	0.2561
112.5	195	0.7774	0.2514	0.2536
112.5	255	1.844	0.5203	0.2698
142.5	15	0.139	0.05844	0.01045