CLAS Physics Database

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Measurement E182M36

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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 :	0.0705 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	-0.018	0.0512	0.0323
1.13	-0.126	0.0497	0.0335
1.15	-0.2084	0.0534	0.051
1.17	-0.35	0.055	0.0697
1.19	-0.581	0.0563	0.0877
1.21	-0.7298	0.057	0.0895
1.23	-0.662	0.0512	0.0739
1.25	-0.4049	0.0469	0.0644
1.27	-0.319	0.045	0.0472
1.29	-0.1336	0.0437	0.0369
1.31	-0.1301	0.0411	0.0304
1.33	-0.0483	0.0384	0.0281
1.35	0.0047	0.0366	0.0342
1.37	-0.042	0.0394	0.023
1.39	-0.0436	0.0411	0.0184
1.41	-0.0479	0.0438	0.0181
1.43	-0.0811	0.0494	0.0154
1.45	-0.0993	0.0568	0.0142
1.47	0.0061	0.0605	0.0165
1.49	-0.0155	0.0658	0.0187
1.51	-0.1029	0.0678	0.0101
1.53	-0.0566	0.0689	0.0101
1.55	-0.0204	0.071	0.0226
1.57	-0.0069	0.0704	0.0164
1.59	0.0487	0.0714	0.024
1.61	-0.1187	0.0781	0.0142
1.63	-0.3318	0.2353	0.015
1.65	-0.4375	0.2626	0.0237
1.67	-0.6989	0.2756	0.025
1.69	-0.5042	0.2811	0.0188
1.71	-0.5073	0.292	0.0414
1.73	-0.142	0.2571	0.0105
1.75	-0.2584	0.2888	0.0164
1.77	-0.3702	0.2706	0.0293
1.79	-0.1995	0.2977	0.0228
1.81	0.172	0.3065	0.0332
1.83	0.0123	0.3241	0.0205
1.85	-0.4334	0.3739	0.0236
1.87	-0.0066	0.382	0.0159
1.89	-0.014	0.4387	0.0358
1.91	0.1625	0.5078	0.0439
1.93	0.8033	0.7427	0.1085