CLAS Physics Database

Measurement E151M740

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: 0.3345
Q2: 0.0593 GeV2
W: 1265.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9729

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.35 66.0 0.3252 1.8431 0.0424
0.45 78.0 -1.7472 1.2374 0.164
0.55 78.0 1.0749 1.528 0.1036
0.55 90.0 -0.1603 1.8445 0.0334
0.55 270.0 0.5828 1.7432 0.0616
0.65 246.0 1.1185 1.7071 0.1075
0.65 258.0 0.1943 1.3504 0.035
0.65 270.0 1.1781 1.206 0.1128
0.75 114.0 -0.5213 2.1271 0.0567
0.75 138.0 -1.5439 2.0055 0.1456
0.75 234.0 -1.8956 1.4797 0.1775
0.75 246.0 0.472 1.6235 0.0529
0.75 258.0 -0.9712 1.1795 0.0945
0.75 270.0 0.7331 1.2747 0.074
0.85 114.0 -1.7824 1.9266 0.1672
0.85 126.0 -3.0703 1.8868 0.2849
0.85 138.0 -2.1881 1.6957 0.2042
0.85 150.0 -1.5553 2.146 0.1466
0.85 162.0 -1.9091 2.2026 0.1787
0.85 234.0 -1.9724 1.6862 0.1845
0.85 246.0 -0.587 1.4876 0.0619
0.85 258.0 -3.3416 1.0842 0.3099
0.85 270.0 0.8326 2.1324 0.0825
0.95 126.0 3.1465 6.8142 0.2919
0.95 138.0 3.9873 7.1973 0.3692
0.95 174.0 6.4089 7.2162 0.5923
0.25 294.0 1.2341 0.481 0.0864
0.25 306.0 -0.0559 0.4367 0.0302
0.35 66.0 -0.504 0.4089 0.0447
0.35 78.0 -0.0077 0.4472 0.03
0.35 294.0 -0.7545 0.3466 0.0579
0.35 306.0 0.2086 0.4971 0.033
0.45 66.0 -0.0156 0.469 0.03
0.45 78.0 -0.1102 0.3077 0.0309
0.45 90.0 0.2134 0.5041 0.0331
0.55 78.0 0.0213 0.3183 0.03
0.55 90.0 -0.3027 0.3963 0.036
0.55 270.0 0.4915 0.4368 0.044
0.65 78.0 0.6034 0.5408 0.0497
0.65 90.0 0.1387 0.5338 0.0314
0.65 258.0 -0.2938 0.3694 0.0357
0.65 270.0 -0.0763 0.3538 0.0304
0.65 282.0 -0.5672 0.3685 0.0478
0.75 102.0 0.1142 0.4671 0.0309
0.75 114.0 0.1484 0.4879 0.0315
0.75 126.0 0.2646 0.4932 0.0347
0.75 234.0 -0.4547 0.4851 0.0423
0.75 246.0 -0.1001 0.3674 0.0307
0.75 258.0 -0.4625 0.302 0.0427
0.75 270.0 0.4509 0.3842 0.0421
0.85 102.0 -0.8567 0.4479 0.0637
0.85 114.0 0.7054 0.437 0.0552
0.85 126.0 -0.0601 0.4351 0.0303
0.85 138.0 0.7433 0.4967 0.0573
0.85 150.0 0.2653 0.4915 0.0347
0.85 162.0 0.494 0.5266 0.0442
0.85 174.0 0.7971 0.6205 0.0603
0.85 234.0 -0.0409 0.4713 0.0301
0.85 246.0 0.334 0.422 0.0372
0.85 258.0 0.0353 0.4037 0.0301
0.85 270.0 -0.2786 0.4469 0.0351
0.95 114.0 0.2078 0.9585 0.033
0.95 138.0 0.2344 0.896 0.0337
0.95 150.0 0.4747 0.9208 0.0432
0.95 162.0 1.4149 1.0219 0.0976
0.95 174.0 1.3369 1.0275 0.0927