CLAS Physics Database

Measurement E182M28

Experiment: Measurement of the Proton Spin Structure at Long Distances
Year: 2021
Spokesperson: X. Zheng et al. (CLAS Collaboration)
Reaction: ep → inclusive
Polarization: beam, target (longitudinal)
Quantity: A1·F1
Q2: 0.0171 GeV2
W: 1.11 — 1.63 GeV
Publication:
X. Zheng et al. (CLAS Collaboration) Measurement of the Proton Spin Structure at Long Distances //

Measurement data
W A1·F1 uncertainty syst. uncert.
1.11 0.1718 0.1046 0.0792
1.13 0.1591 0.1047 0.0151
1.15 -0.076 0.0982 0.0254
1.17 -0.2704 0.0922 0.0443
1.19 -0.4909 0.0922 0.0455
1.21 -0.5967 0.0899 0.0402
1.23 -0.6754 0.087 0.0385
1.25 -0.4453 0.0749 0.0301
1.27 -0.3175 0.072 0.0356
1.29 -0.0682 0.0709 0.0324
1.31 -0.1164 0.0716 0.0391
1.33 0.0464 0.0698 0.0497
1.35 -0.0964 0.0766 0.0559
1.37 -0.0059 0.0781 0.0532
1.39 0.0246 0.0841 0.0487
1.41 -0.2335 0.0905 0.0236
1.43 -0.2179 0.1002 0.0213
1.45 -0.4445 0.1134 0.0528
1.47 -0.1461 0.1345 0.046
1.49 -0.252 0.1504 0.0649
1.51 -0.2455 0.1447 0.0793
1.53 -0.1201 0.1564 0.0518
1.55 -0.1649 0.1642 0.0318
1.57 -0.1024 0.2035 0.0612
1.59 -0.351 0.2025 0.0666
1.61 -0.3367 0.2287 0.0827
1.63 -0.17 0.3031 0.2442