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Measurement E151M221

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: 0.2909
Q2: 0.0415 GeV2
W: 1235.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9364

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.15 42.0 0.399 0.4096
0.25 30.0 0.8497 0.8543
0.25 42.0 -0.4167 0.309
0.25 54.0 0.4639 0.4231
0.45 270.0 -0.5707 0.309
0.45 282.0 0.0276 0.3396
0.55 258.0 -0.3976 0.242
0.55 270.0 0.1068 0.214
0.55 282.0 0.3903 0.2947
0.65 234.0 -0.4946 0.4806
0.65 246.0 -0.0472 0.2462
0.65 258.0 -0.1324 0.2066
0.65 270.0 0.2035 0.2236
0.65 282.0 0.123 0.2327
0.75 126.0 -0.0672 0.4026
0.75 138.0 -0.2014 0.2956
0.75 150.0 -0.1358 0.4005
0.75 162.0 -0.2749 0.3987
0.75 222.0 0.3906 0.7228
0.75 234.0 -0.5376 0.3357
0.75 246.0 -0.1062 0.2208
0.75 258.0 -0.135 0.1966
0.75 270.0 0.1455 0.2172
0.75 282.0 -0.2379 0.2309
0.85 114.0 -0.0605 0.4284
0.85 126.0 0.0089 0.3185
0.85 138.0 -0.1862 0.242
0.85 150.0 -0.2602 0.2637
0.85 162.0 -0.2735 0.2498
0.85 174.0 0.4025 0.2613
0.85 186.0 -0.3817 0.2478
0.85 198.0 0.0195 0.3256
0.85 210.0 -0.6335 0.3152
0.85 222.0 0.3212 0.3965
0.85 234.0 -0.2178 0.2889
0.85 246.0 -0.4789 0.2272
0.85 258.0 -0.4449 0.1817
0.85 270.0 -0.2148 0.2248
0.85 282.0 -0.0173 0.3806
0.95 138.0 -0.5921 0.2682
0.95 150.0 -0.2342 0.2944
0.95 162.0 0.1705 0.3087
0.95 174.0 -0.2642 0.2886
0.95 186.0 -0.2762 0.2899
0.95 198.0 -0.34 0.4541
0.95 210.0 -0.8566 0.3624
Created in SINP MSU, CLAS Collaboration