CLAS Physics Database

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Measurement E182M34

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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 :	0.0494 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	0.0826	0.0443	0.0222
1.13	0.0268	0.0518	0.0237
1.15	-0.0572	0.0533	0.0337
1.17	-0.3418	0.054	0.0541
1.19	-0.5399	0.0563	0.068
1.21	-0.7553	0.0554	0.0634
1.23	-0.5683	0.0532	0.0608
1.25	-0.4457	0.0496	0.0484
1.27	-0.2509	0.0466	0.0373
1.29	-0.1585	0.0437	0.0325
1.31	-0.0597	0.042	0.0324
1.33	-0.043	0.0414	0.0374
1.35	-0.0285	0.0427	0.0365
1.37	-0.0932	0.0439	0.0351
1.39	0.0301	0.045	0.0226
1.41	-0.0262	0.0475	0.0222
1.43	-0.1181	0.0522	0.0104
1.45	-0.0476	0.055	0.0212
1.47	-0.1876	0.0701	0.0331
1.49	-0.0842	0.0739	0.0206
1.51	-0.2146	0.0763	0.0304
1.53	-0.0617	0.0768	0.014
1.55	-0.1745	0.0823	0.0239
1.57	-0.1206	0.0877	0.0215
1.59	-0.0819	0.0921	0.0212
1.61	-0.1087	0.0982	0.0555
1.63	-0.1134	0.147	0.0927
1.65	0.2689	0.3208	0.0252
1.67	-1.1749	0.3231	0.0583
1.69	-0.2075	0.3258	0.0161
1.71	-0.8133	0.313	0.061
1.73	0.0235	0.3234	0.0175
1.75	0.0555	0.3524	0.0249
1.77	-0.5336	0.3959	0.0456
1.79	-0.8279	0.415	0.0624
1.81	-0.1389	0.446	0.0432
1.83	-0.1765	0.4452	0.0144
1.85	-0.2532	0.5279	0.0265
1.87	0.4193	0.5644	0.0538
1.89	1.0896	0.571	0.1289
1.91	-0.4528	0.595	0.0499
1.93	0.0864	1.0521	0.1182