CLAS Physics Database

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Measurement E128M1

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Experiment: E1b(E-91-023), 2001

Spokespersons: V. Burkert, D. Crabb, R. Minehart

Publication:

Y. Prok, P. Bosted, V. Burkert, A. Deur, V. Dharmawardane, G. Dodge, K. Griffoen, S. Kuhn, R. Minehart and CLAS Collaboration Moments of the Spin Structure Functions g₁^p and g₁^d for 0.05 < Q² < 3.0 GeV². // Phys. Lett. B 672, 12 (2009)

Quantity measured: Γ₁^p_meas, dimensionless
Measured first moment of polarized spin structure function g₁^p.
Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: longitudinal
Final state: inclusive, polarization: none

Q² :	0.05 — 4.2 GeV²

Observable quantity measured (Y axis): Γ₁^p_meas, dimensionless
Plot measurement data

Parameter (X axis): Q², GeV²

Click here to get data in text file, delimited with tabs.

Measured data:

Q², GeV²	Γ₁^p_meas, dimensionless	Data errors, dimensionless	Systematic errors, dimensionless
0.05	-0.0126	0.0021	0.0047
0.06	-0.0116	0.0017	0.0062
0.07	-0.0175	0.002	0.0049
0.084	-0.0195	0.002	0.0067
0.1	-0.0144	0.002	0.0053
0.12	-0.0154	0.0022	0.0055
0.14	-0.0146	0.0023	0.0067
0.17	-0.0141	0.0021	0.0089
0.2	-0.0163	0.0014	0.0074
0.24	-0.0121	0.0012	0.0081
0.3	-0.0085	0.001	0.008
0.35	-0.005	0.001	0.0086
0.42	-0.0019	0.001	0.0089
0.5	0.0008	0.0009	0.0089
0.6	0.0016	0.001	0.0094
0.7	0.0481	0.0038	0.0079
0.84	0.0485	0.003	0.0073
1	0.0588	0.0028	0.0072
1.2	0.0645	0.0025	0.0072
1.4	0.0667	0.002	0.007
1.7	0.0621	0.0016	0.0065
2	0.0589	0.0013	0.0061
2.4	0.0475	0.0011	0.0055
3	0.0368	0.0009	0.0052
3.5	0.0262	0.0008	0.0051
4.2	0.0191	0.0009	0.0054