CLAS Physics Database

Measurement E151M203

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: 0.3169
Q2: 0.0348 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.951

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 282.0 -0.6119 0.3298
0.55 258.0 0.0368 0.4599
0.55 270.0 -0.1149 0.2919
0.55 282.0 0.4574 0.2933
0.65 246.0 0.0933 0.4083
0.65 258.0 -0.154 0.2739
0.65 270.0 -0.0745 0.2154
0.65 282.0 -0.1729 0.2531
0.75 138.0 0.1825 0.8673
0.75 234.0 -1.0328 0.3059
0.75 246.0 0.4033 0.3777
0.75 258.0 -0.1098 0.2638
0.75 270.0 -0.6208 0.2727
0.85 138.0 0.1193 0.6142
0.85 150.0 0.0169 0.4848
0.85 162.0 -0.3337 0.4318
0.85 174.0 0.0604 0.5832
0.85 186.0 -0.1903 0.4613
0.85 198.0 0.3154 0.6618
0.85 210.0 0.486 0.7894
0.85 222.0 0.2194 0.6453
0.85 258.0 -0.2403 0.5161
0.95 162.0 -0.6018 0.3702
0.95 210.0 -0.0567 0.5597
0.75 282.0 0.4985 0.4487
0.85 126.0 0.3031 0.4651
0.85 138.0 0.6047 0.409
0.85 150.0 -0.4714 0.3332
0.85 162.0 -0.2521 0.3323
0.85 174.0 -0.5178 0.3106
0.85 186.0 -0.1645 0.3972
0.85 198.0 -0.6182 0.2959
0.85 210.0 -0.4748 0.3988
0.85 234.0 -0.7709 0.3784
0.85 246.0 0.1122 0.4446