CLAS Physics Database

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Measurement E182M35

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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 :	0.059 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	0.0597	0.045	0.016
1.13	-0.0199	0.0512	0.0281
1.15	-0.0987	0.0554	0.0382
1.17	-0.3687	0.0551	0.0701
1.19	-0.5707	0.0546	0.0734
1.21	-0.8014	0.0573	0.0778
1.23	-0.6243	0.0536	0.0718
1.25	-0.4069	0.0502	0.0561
1.27	-0.2635	0.0458	0.0472
1.29	-0.1239	0.0423	0.0328
1.31	-0.1084	0.04	0.0332
1.33	-0.0305	0.0393	0.0315
1.35	-0.0222	0.0415	0.0316
1.37	-0.0745	0.0421	0.0286
1.39	-0.0804	0.0422	0.0224
1.41	0.0093	0.0432	0.0314
1.43	-0.1187	0.0457	0.012
1.45	-0.1936	0.0549	0.023
1.47	-0.1431	0.0666	0.0148
1.49	-0.0429	0.0685	0.018
1.51	-0.1153	0.0712	0.0232
1.53	-0.0964	0.0747	0.0128
1.55	-0.2058	0.0753	0.0174
1.57	-0.102	0.0779	0.0188
1.59	-0.0332	0.082	0.053
1.61	-0.0425	0.0853	0.0206
1.63	-0.057	0.1128	0.0354
1.65	-0.0989	0.2615	0.011
1.67	-0.2473	0.2808	0.0129
1.69	-0.4323	0.2694	0.0248
1.71	-0.0883	0.3093	0.015
1.73	-0.1007	0.3306	0.0165
1.75	0.1558	0.3038	0.0226
1.77	-0.2271	0.316	0.0319
1.79	0.1007	0.3213	0.0269
1.81	0.4862	0.365	0.0519
1.83	-0.3101	0.374	0.0192
1.85	0.0594	0.4145	0.026
1.87	-0.5723	0.4472	0.0348
1.89	-0.3301	0.4468	0.0535
1.91	-0.2933	0.4806	0.0357
1.93	-0.3247	0.8606	0.3017