CLAS Physics Database

Measurement E151M1128

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: 0.1744
Q2: 0.2915 GeV2
W: 1685.0 GeV
Ebeam: 2.999 GeV
ε: 0.8603

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 270.0 3.8518 3.8518
0.45 282.0 -0.2615 0.6605
0.55 102.0 0.5538 0.7364
0.55 114.0 -0.5033 0.6797
0.55 210.0 0.3693 0.8559
0.55 294.0 0.5764 0.789
0.65 90.0 -0.5316 0.6297
0.65 102.0 -0.2965 0.5846
0.65 114.0 -1.1853 0.5095
0.65 198.0 1.513 0.9148
0.65 210.0 2.5973 2.5973
0.65 222.0 1.4327 0.8051
0.65 234.0 -0.3554 0.6541
0.65 294.0 0.2545 0.6137
0.65 306.0 -1.0271 0.5157
0.75 78.0 -0.5678 0.562
0.75 102.0 -0.89 0.6295
0.75 114.0 -0.8102 0.5144
0.75 126.0 -0.0345 0.8085
0.75 186.0 0.084 0.7194
0.75 198.0 -0.853 0.5707
0.75 210.0 1.3191 0.7563
0.75 222.0 0.4948 0.7118
0.75 234.0 0.9265 0.6489
0.75 246.0 0.0586 0.7077
0.75 294.0 0.176 0.7294
0.85 66.0 -0.5606 0.4881
0.85 78.0 -0.2761 0.488
0.85 90.0 -0.0569 0.5649
0.85 186.0 -0.6337 0.6338
0.85 198.0 0.5565 0.6517
0.85 210.0 0.3055 0.5968
0.85 222.0 0.7535 0.4653
0.85 234.0 0.6403 0.506
0.85 246.0 -0.2875 0.4287
0.85 258.0 0.3261 0.6552
0.85 270.0 2.5024 2.5024
0.95 90.0 0.1689 0.7264
0.95 174.0 -0.5463 0.5699
0.95 198.0 -0.4935 0.5611
0.95 210.0 0.6309 0.5952
0.95 222.0 0.2822 0.55
0.95 234.0 -0.1432 0.4899
0.95 246.0 0.4502 0.5108
0.95 258.0 0.0804 0.4969
0.95 270.0 0.3534 0.4734
0.95 282.0 0.2444 0.5531
0.95 294.0 -0.0153 0.6476