CLAS Physics Database

Measurement E151M3489

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: ALU
εL: 0.5147
Q2: 0.5925 GeV2
W: 1475.0 GeV
Ebeam: 2.999 GeV
ε: 0.879

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 294.0 -0.1144 0.2672
0.45 102.0 -0.4042 0.2611
0.55 78.0 0.2477 0.2406
0.55 90.0 -0.0558 0.2538
0.55 102.0 0.1913 0.2455
0.65 78.0 0.0168 0.2578
0.65 90.0 0.0557 0.2569
0.65 102.0 -0.1163 0.2695
0.65 258.0 0.0302 0.2815
0.75 54.0 -0.0096 0.2684
0.75 90.0 -0.0435 0.2421
0.75 102.0 -0.0591 0.2758
0.75 114.0 0.338 0.2559
0.75 234.0 0.0716 0.2823
0.75 246.0 -0.2611 0.2487
0.75 258.0 0.1485 0.2452
0.75 282.0 0.2295 0.2316
0.85 54.0 0.1759 0.2552
0.85 114.0 0.011 0.2749
0.85 210.0 0.1692 0.257
0.85 222.0 0.021 0.2577
0.85 246.0 -0.3045 0.2654
0.85 270.0 -0.2788 0.2309
0.85 282.0 -0.542 0.202
0.85 294.0 0.1625 0.233
0.85 306.0 0.1266 0.2249
0.85 318.0 0.046 0.227
0.85 330.0 0.0338 0.2668
0.95 294.0 0.3401 0.2608