CLAS Physics Database

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Measurement E8M43

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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 :	1.46 — 1.48 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	9.236	0.8537	0.7035
7.5	45	8.562	0.9421	0.7404
7.5	75	8.624	0.959	0.7393
7.5	105	9.73	0.9759	0.8593
7.5	135	7.99	0.8676	0.7051
7.5	165	6.844	0.6618	0.6818
7.5	195	6.349	0.6763	0.6626
7.5	225	8.683	0.9249	0.703
7.5	255	8.295	0.9238	0.6878
7.5	285	5.707	0.6806	0.6649
7.5	315	8.513	0.9888	0.7895
7.5	345	8.079	0.832	0.7085
22.5	45	9.795	2.747	0.7965
22.5	75	9.334	1.195	0.8145
22.5	105	7.298	0.7923	0.749
22.5	135	5.419	0.4585	0.7281
22.5	165	4.139	0.3308	0.7031
22.5	195	4.46	0.3524	0.709
22.5	225	5.372	0.4689	0.718
22.5	255	7.725	0.8195	0.7625
22.5	285	8.272	1.127	0.7828
22.5	315	9.422	2.47	0.8063
37.5	45	9.2	1.327	0.7534
37.5	75	8.372	0.3983	0.7406
37.5	105	7.24	0.5388	0.7117
37.5	135	4.532	0.602	0.7035
37.5	225	5.462	0.8084	0.7342
37.5	255	7.771	0.6052	0.7433
37.5	285	7.904	0.3663	0.7317
37.5	315	8.208	1.071	0.7285
52.5	45	5.682	0.7146	0.4648
52.5	75	7.898	0.3563	0.52
52.5	165	3.133	0.2218	0.4193
52.5	195	2.865	0.1945	0.4122
52.5	285	8.076	0.3577	0.5316
52.5	315	6.328	0.7818	0.4764
67.5	15	2.863	0.381	0.3875
67.5	45	4.716	0.2874	0.4272
67.5	75	6.58	0.6462	0.4617
67.5	105	6.502	0.3388	0.4741
67.5	135	4.832	0.2797	0.4359
67.5	165	2.769	0.1579	0.384
67.5	195	3.057	0.1716	0.3933
67.5	225	5.237	0.297	0.4439
67.5	255	5.742	0.2695	0.4645
67.5	315	4.593	0.3138	0.4183
67.5	345	4.098	1.103	0.4267
82.5	15	1.054	0.1874	0.2799
82.5	45	4.465	0.7485	0.3365
82.5	75	6.64	0.8409	0.3732
82.5	105	5.627	0.236	0.3865
82.5	135	4.172	0.2631	0.3286
82.5	165	2.432	0.1458	0.3048
82.5	195	2.618	0.155	0.3076
82.5	225	4.142	0.2521	0.3348
82.5	255	5.33	0.2133	0.3704
82.5	285	4.96	0.3447	0.3541
82.5	315	3.544	0.4607	0.3255
82.5	345	1.714	0.3642	0.283
97.5	15	1.479	0.5486	0.2604
97.5	45	2.804	0.1685	0.2868
97.5	75	3.919	0.2707	0.3094
97.5	105	4.389	0.2142	0.3246
97.5	135	3.89	0.2566	0.3047
97.5	165	2.362	0.1811	0.2715
97.5	195	2.593	0.1855	0.2875
97.5	225	3.672	0.2562	0.3087
97.5	255	4.292	0.2015	0.3251
97.5	285	3.965	0.2468	0.3059
97.5	315	2.51	0.1604	0.2776
112.5	15	0.9912	0.1185	0.1708
112.5	45	2.085	0.163	0.1914
112.5	75	3.24	0.2475	0.2293
112.5	105	3.228	0.2028	0.2327
112.5	135	2.724	0.183	0.2096
112.5	165	1.921	0.1643	0.1966
112.5	195	2.114	0.169	0.2026
112.5	225	2.721	0.1863	0.2193
112.5	255	3.17	0.1973	0.2201
112.5	285	3.017	0.2352	0.2183
112.5	315	1.921	0.1523	0.1867
112.5	345	1.021	0.1256	0.1705
127.5	15	0.595	0.1167	0.126
127.5	45	1.358	0.1368	0.1365
127.5	75	2.161	0.1786	0.173
127.5	105	2.35	0.2001	0.1761
127.5	135	1.964	0.2049	0.1622
127.5	165	1.648	0.2103	0.1424
127.5	195	2.734	0.5658	0.2038
127.5	225	1.976	0.1895	0.1654
127.5	255	2.117	0.1674	0.1642
127.5	285	2.242	0.1956	0.1647
127.5	315	1.35	0.1337	0.1385
127.5	345	0.6109	0.1069	0.1253
142.5	15	0.4883	0.08767	0.06835
142.5	45	0.8396	0.1198	0.1378
142.5	75	1.212	0.1368	0.1473
142.5	105	1.231	0.2797	0.1505
142.5	135	1.15	0.2362	0.06859
142.5	225	1.439	0.4412	0.06875
142.5	255	2.303	0.788	0.1688
142.5	285	1.404	0.1699	0.1507
142.5	315	1.168	0.1916	0.1447
142.5	345	0.5409	0.1187	0.1398
157.5	15	0.4233	0.1095	0.02491
157.5	345	0.4327	0.1612	0.1042