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Measurement E151M542

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: 0.5316
Q2: 0.2445 GeV2
W: 1355.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8892

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.35 66.0 -0.3538 0.4841 0.037
0.55 270.0 -0.3846 0.6381 0.0381
0.65 102.0 -0.2513 0.5728 0.0337
0.65 270.0 -0.6583 0.5193 0.0502
0.75 78.0 -0.3216 0.6326 0.0359
0.75 90.0 0.4134 0.5939 0.0392
0.75 102.0 -0.112 0.4728 0.0308
0.75 114.0 0.0736 0.6321 0.0303
0.75 234.0 0.0091 0.6591 0.03
0.75 246.0 0.5043 0.6417 0.043
0.75 258.0 0.3235 0.5408 0.0359
0.75 270.0 -0.6879 0.4336 0.0517
0.75 282.0 -0.143 0.5325 0.0312
0.75 294.0 -0.5088 0.4795 0.0432
0.85 90.0 0.5685 0.4845 0.0459
0.85 102.0 1.3122 0.4881 0.0857
0.85 114.0 -0.4812 0.4879 0.042
0.85 126.0 0.8341 0.6806 0.0592
0.85 138.0 0.6942 0.6468 0.052
0.85 222.0 -0.6386 0.5429 0.0492
0.85 234.0 -0.2649 0.5149 0.0341
0.85 246.0 -0.0147 0.4852 0.03
0.85 258.0 -0.4168 0.4863 0.0394
0.85 270.0 -1.2704 0.4086 0.0833
0.85 282.0 0.1473 0.4507 0.0313
0.85 294.0 1.8461 0.4135 0.1168
0.85 306.0 0.7537 0.7101 0.055
0.95 102.0 -0.4276 0.5712 0.0398
0.95 114.0 -0.2945 0.5287 0.035
0.95 126.0 0.9526 0.5857 0.0655
0.95 246.0 0.0868 0.5542 0.0305
0.95 258.0 0.6697 0.4403 0.0508
0.95 270.0 -0.4426 0.4856 0.0404
0.95 282.0 -1.0901 0.337 0.0731
0.95 294.0 -0.2273 0.5221 0.0331
Created in SINP MSU, CLAS Collaboration