CLAS Physics Database

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Measurement E182M47

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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 :	0.494 GeV²
W :	1.11 — 2.21 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	0.0085	0.055	0.0087
1.13	0.0111	0.0917	0.0187
1.15	-0.0607	0.0747	0.0161
1.17	-0.0123	0.0798	0.0342
1.19	-0.4111	0.0885	0.0246
1.21	-0.3282	0.0957	0.028
1.23	-0.1861	0.0791	0.0159
1.25	-0.1967	0.0688	0.0171
1.27	-0.0867	0.0665	0.016
1.29	0.0478	0.0644	0.019
1.31	0.0231	0.0613	0.0295
1.33	-0.0674	0.0542	0.0615
1.35	0.0871	0.0514	0.0235
1.37	0.0122	0.0519	0.0268
1.39	0.0737	0.0545	0.0296
1.41	0.0621	0.0492	0.0252
1.43	0.1702	0.0533	0.0326
1.45	0.1673	0.0581	0.0379
1.47	0.1701	0.0678	0.0491
1.49	0.2027	0.0658	0.0562
1.51	0.2503	0.0677	0.059
1.53	0.195	0.069	0.0564
1.55	0.0843	0.0659	0.0501
1.57	0.015	0.0667	0.0494
1.59	0.1606	0.0541	0.0387
1.61	-0.0007	0.063	0.0519
1.63	0.043	0.0658	0.0701
1.65	0.1337	0.064	0.0523
1.67	-0.0381	0.0651	0.0489
1.69	0.0989	0.0542	0.0408
1.71	0.1116	0.0602	0.0351
1.73	0.0352	0.058	0.0214
1.75	0.0233	0.0593	0.034
1.77	0.1044	0.0555	0.014
1.79	0.1921	0.0564	0.0144
1.81	0.0362	0.0578	0.0123
1.83	0.1194	0.0635	0.0167
1.85	0.0831	0.0717	0.0171
1.87	0.0284	0.0605	0.0101
1.89	0.0254	0.0632	0.0098
1.91	-0.0819	0.0662	0.0237
1.93	0.0241	0.0661	0.0156
1.95	-0.0998	0.0786	0.0324
1.97	-0.0492	0.0761	0.0328
1.99	0.1168	0.0749	0.017
2.01	0.06	0.0756	0.0154
2.03	0.0655	0.1018	0.0159
2.05	0.158	0.1169	0.0157
2.07	-0.0732	0.2091	0.0974
2.09	0.2581	0.2164	0.187
2.11	0.1026	0.2013	0.0313
2.13	0.0643	0.1408	0.0381
2.15	0.1017	0.0812	0.036
2.17	-0.0356	0.0887	0.0385
2.19	0.1622	0.156	0.0811
2.21	0.0275	0.2314	0.0175