CLAS Physics Database

Measurement E151M133

Experiment: EG4
Year: 2016

Experiment comment:

Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: AUL
εL: 0.057
Q2: 0.0245 GeV2
W: 1385.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7466

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.25 42.0 1.3219 0.7767
0.25 54.0 1.5302 0.8147
0.35 42.0 -0.8355 0.5204
0.35 54.0 -0.0011 0.6099
0.45 18.0 0.8023 0.8209
0.45 30.0 0.6396 0.6185
0.45 42.0 0.0919 0.4798
0.45 54.0 0.1276 0.64
0.45 234.0 -0.1974 0.7351
0.45 246.0 -0.0994 0.7064
0.55 30.0 0.024 0.6466
0.55 42.0 0.5949 0.5487
0.55 54.0 0.5437 0.6284
0.55 138.0 1.5569 1.0321
0.55 150.0 0.3853 0.8333
0.55 162.0 -0.1479 0.8509
0.55 222.0 0.0458 0.6451
0.55 234.0 -0.3157 0.5289
0.55 246.0 -0.4118 0.5034
0.55 258.0 0.6687 0.5873
0.55 270.0 0.6819 0.8895
0.65 138.0 0.068 0.7069
0.65 150.0 -0.2809 0.5646
0.65 162.0 -0.4217 0.711
0.65 174.0 -0.0206 0.791
0.65 210.0 0.814 0.8218
0.65 222.0 1.0311 0.5441
0.65 234.0 0.2631 0.5198
0.65 246.0 0.6591 0.4354
0.65 258.0 0.2919 0.4627
0.65 270.0 -0.406 0.7014
0.75 138.0 0.1131 0.6793
0.75 150.0 -0.2189 0.6626
0.75 162.0 0.5389 0.7538
0.75 210.0 1.3681 0.8766
0.75 222.0 -0.1683 0.6112
0.75 234.0 0.0566 0.4809
0.75 246.0 -0.0419 0.442
0.75 258.0 -0.2551 0.4181
0.75 270.0 0.0986 0.6726
0.85 150.0 -0.0387 0.8002
0.85 222.0 -0.0396 0.4938
0.85 234.0 -0.0256 0.4546
0.85 246.0 -0.42 0.3953
0.85 258.0 0.9714 0.5035
0.85 270.0 0.1592 0.6484
0.95 246.0 0.0239 0.5151