CLAS Physics Database

Measurement E182M27

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: 0.0143 GeV2
W: 1.11 — 1.47 GeV
Publication:
X. Zheng et al. (CLAS Collaboration) Measurement of the Proton Spin Structure at Long Distances //

Measurement data
W A1·F1 uncertainty
1.11 0.139 0.1151
1.13 0.057 0.1071
1.15 -0.0985 0.1212
1.17 -0.1727 0.1294
1.19 -0.7613 0.1403
1.21 -0.6225 0.1337
1.23 -0.7228 0.1328
1.25 -0.5812 0.1272
1.27 -0.3944 0.1246
1.29 -0.3119 0.1268
1.31 -0.0487 0.1092
1.33 -0.1224 0.1248
1.35 0.0153 0.134
1.37 -0.0964 0.1362
1.39 -0.2029 0.1509
1.41 -0.1354 0.1638
1.43 -0.0705 0.1975
1.45 -0.3423 0.2431
1.47 0.4251 0.4408