CLAS Physics Database

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Measurement E182M43

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Experiment: Measurement of the Proton Spin Structure at Long Distances, 2021

Spokespersons: X. Zheng et al. (CLAS Collaboration)

Publication:

X. Zheng et al. (CLAS Collaboration) Measurement of the Proton Spin Structure at Long Distances //

Quantity measured: A₁·F₁,

Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: longitudinal
Final state: inclusive, polarization: none

Q² :	0.2436 GeV²
W :	1.11 — 2.27 GeV

Observable quantity measured (Y axis): A₁·F₁,
Plot measurement data

Parameter (X axis): W,

Click here to get data in text file, delimited with tabs.

Measured data:

W	A₁·F₁	Data errors	Systematic errors
1.11	-0.0238	0.0784	0.0422
1.13	-0.0337	0.0438	0.1109
1.15	-0.1736	0.0915	0.0446
1.17	-0.3241	0.0645	0.1397
1.19	-0.3912	0.0969	0.1007
1.21	-0.7034	0.0837	0.1
1.23	-0.5232	0.0715	0.0774
1.25	-0.3036	0.067	0.0701
1.27	-0.1732	0.054	0.0448
1.29	-0.0712	0.0476	0.0358
1.31	-0.0246	0.0431	0.0226
1.33	-0.0152	0.0407	0.0152
1.35	0.0182	0.0395	0.0092
1.37	0.0201	0.0451	0.021
1.39	0.0346	0.0471	0.0123
1.41	0.0055	0.0494	0.0392
1.43	0.1016	0.0517	0.0395
1.45	0.0751	0.0577	0.0094
1.47	-0.0267	0.062	0.023
1.49	0.1326	0.0663	0.0314
1.51	0.2772	0.0697	0.0372
1.53	0.0558	0.0639	0.0346
1.55	0.0511	0.0606	0.0309
1.57	-0.0081	0.0589	0.0275
1.59	0.1105	0.059	0.0248
1.61	-0.0175	0.0614	0.0219
1.63	-0.0587	0.0602	0.0176
1.65	-0.065	0.0603	0.0175
1.67	0.0158	0.0627	0.0217
1.69	0.08	0.0643	0.0177
1.71	0.0291	0.062	0.0143
1.73	0.0284	0.0641	0.0139
1.75	-0.0054	0.0545	0.0155
1.77	0.0453	0.0553	0.0091
1.79	-0.0791	0.061	0.0084
1.81	-0.1228	0.0618	0.0107
1.83	0.1001	0.0635	0.0162
1.85	-0.0592	0.0593	0.0164
1.87	-0.0838	0.065	0.0131
1.89	-0.0253	0.0654	0.0158
1.91	0.0645	0.067	0.0185
1.93	-0.027	0.0728	0.0198
1.95	-0.0024	0.0751	0.017
1.97	-0.0336	0.0845	0.0198
1.99	-0.0379	0.0849	0.0244
2.01	0.0308	0.0778	0.0185
2.03	-0.0257	0.0758	0.0221
2.05	0.0383	0.078	0.017
2.07	-0.0457	0.0862	0.0187
2.09	-0.0106	0.0816	0.031
2.11	-0.115	0.0836	0.0147
2.13	0.0333	0.0946	0.028
2.15	-0.0173	0.0956	0.0155
2.17	0.0457	0.0922	0.0145
2.19	0.0526	0.0845	0.0244
2.21	0.2324	0.0925	0.0206
2.23	-0.1183	0.1042	0.0145
2.25	-0.0486	0.0941	0.0182
2.27	0.2491	0.1287	0.0351