CLAS Physics Database

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Measurement E182M37

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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 :	0.0841 GeV²
W :	1.11 — 1.93 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	-0.0344	0.0502	0.0204
1.13	0.0534	0.0477	0.0398
1.15	-0.2284	0.0533	0.052
1.17	-0.3697	0.0537	0.073
1.19	-0.6411	0.0588	0.0974
1.21	-0.7084	0.0577	0.0986
1.23	-0.624	0.0539	0.0877
1.25	-0.4375	0.0496	0.0704
1.27	-0.1954	0.0434	0.0509
1.29	-0.108	0.0405	0.0373
1.31	-0.0448	0.0389	0.031
1.33	-0.0477	0.0376	0.0273
1.35	-0.0295	0.0376	0.024
1.37	0.0745	0.0419	0.0206
1.39	-0.0052	0.0459	0.0221
1.41	-0.0831	0.0482	0.015
1.43	-0.0556	0.0514	0.0194
1.45	-0.0018	0.0563	0.0176
1.47	-0.2344	0.0615	0.0157
1.49	-0.152	0.0606	0.0124
1.51	-0.1063	0.0628	0.0202
1.53	-0.0302	0.0625	0.0166
1.55	-0.0281	0.0637	0.0097
1.57	0.0429	0.0657	0.0109
1.59	0.032	0.0723	0.0134
1.61	-0.1522	0.0888	0.0193
1.63	-0.1083	0.2435	0.0184
1.65	-0.6001	0.2704	0.025
1.67	-0.1407	0.2774	0.0096
1.69	-0.2625	0.2438	0.0265
1.71	-0.1112	0.2529	0.0229
1.73	-0.3022	0.2462	0.0132
1.75	0.2607	0.2639	0.0195
1.77	-0.2818	0.262	0.0154
1.79	-0.1596	0.2645	0.0163
1.81	-0.5792	0.328	0.0251
1.83	-0.3859	0.3489	0.0222
1.85	-0.412	0.3074	0.052
1.87	-0.188	0.3276	0.0183
1.89	-0.3827	0.3729	0.0152
1.91	-0.5394	0.4124	0.0831
1.93	-2.1696	1.9695	1.2624