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Measurement E151M495

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: 0.7126
Q2: 0.1715 GeV2
W: 1265.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9373

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.15 66.0 0.5671 0.5792
0.25 66.0 0.2246 0.5058
0.35 66.0 -0.0873 0.4184
0.35 78.0 -0.6719 0.4579
0.45 66.0 0.5906 0.5034
0.45 78.0 0.0456 0.4359
0.45 282.0 0.7014 0.529
0.55 270.0 0.0264 0.4223
0.55 282.0 0.5235 0.3975
0.65 102.0 -0.1385 0.5948
0.65 258.0 0.7768 0.6273
0.65 270.0 0.9832 0.4329
0.65 282.0 -0.0008 0.359
0.75 90.0 -0.4374 0.4293
0.75 102.0 -0.0199 0.4517
0.75 114.0 -0.7533 0.4544
0.75 258.0 0.3464 0.3575
0.75 270.0 0.5215 0.4429
0.75 282.0 0.0232 0.3488
0.75 294.0 0.1104 0.4721
0.85 78.0 0.5553 0.5168
0.85 90.0 -0.0437 0.3754
0.85 102.0 -0.3207 0.4056
0.85 114.0 -0.0342 0.3974
0.85 126.0 -0.2092 0.3956
0.85 138.0 -0.0996 0.5189
0.85 246.0 -0.1514 0.4053
0.85 258.0 0.6161 0.4481
0.85 270.0 0.3492 0.3893
0.85 282.0 0.786 0.4493
0.85 294.0 0.0284 0.4708
0.95 78.0 -0.3938 0.4263
0.95 90.0 -0.1182 0.4064
0.95 102.0 0.5606 0.4321
0.95 114.0 0.2793 0.3729
0.95 126.0 -0.0606 0.4128
0.95 138.0 -0.11 0.4315
0.95 150.0 1.2582 0.5075
0.95 162.0 -0.2808 0.5112
0.95 246.0 0.1124 0.5256
0.95 258.0 -0.1127 0.4928
0.95 270.0 1.0191 0.4219
Created in SINP MSU, CLAS Collaboration