CLAS Physics Database

Measurement E151M115

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: 0.1132
Q2: 0.0415 GeV2
W: 1355.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7694

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.25 42.0 -1.5823 0.5767
0.25 54.0 -0.4721 0.7055
0.35 30.0 0.6778 0.7759
0.35 42.0 1.359 0.7531
0.35 54.0 -0.1123 0.8793
0.45 30.0 0.502 0.8365
0.45 42.0 0.4254 0.5997
0.45 54.0 -0.4689 0.7936
0.45 258.0 0.0061 0.7839
0.55 42.0 -0.1577 0.77
0.55 54.0 0.8424 0.9352
0.55 234.0 -0.253 0.6602
0.55 246.0 -0.2675 0.5425
0.55 258.0 -0.1701 0.5523
0.55 270.0 -0.1012 0.7308
0.65 138.0 -0.4438 0.7327
0.65 150.0 -0.7911 0.5492
0.65 162.0 -1.1509 0.6753
0.65 174.0 -0.486 0.7594
0.65 186.0 -0.6973 0.7311
0.65 210.0 0.7233 0.8419
0.65 222.0 0.4335 0.6807
0.65 234.0 -0.4549 0.4148
0.65 246.0 -0.6313 0.4372
0.65 258.0 0.2391 0.4753
0.65 270.0 -0.8728 0.4779
0.75 126.0 0.4654 0.8651
0.75 138.0 -0.8692 0.6832
0.75 150.0 0.1642 0.7302
0.75 162.0 0.7682 0.7451
0.75 174.0 0.206 0.7181
0.75 186.0 0.0755 0.6823
0.75 210.0 -0.1113 0.775
0.75 222.0 -0.1891 0.5707
0.75 234.0 0.6018 0.5698
0.75 246.0 0.1334 0.4554
0.75 258.0 0.1792 0.4611
0.75 270.0 0.4803 0.4882
0.85 126.0 0.4323 0.8247
0.85 150.0 -1.2693 0.6411
0.85 162.0 -0.0358 0.6636
0.85 174.0 -0.2405 0.6688
0.85 210.0 0.0946 0.7652
0.85 222.0 1.2805 0.6768
0.85 234.0 -0.8404 0.4883
0.85 246.0 0.0919 0.4448
0.85 258.0 0.0806 0.3819
0.85 270.0 -0.3752 0.4266
0.85 282.0 0.5992 0.7136
0.95 234.0 0.4647 0.6392
0.95 246.0 0.2889 0.4599
0.95 258.0 0.0644 0.485