CLAS Physics Database

Measurement E151M1255

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: ALL
εL: 0.4208
Q2: 0.0707 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8648

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty
0.05 42.0 -0.4344 0.6678
0.15 42.0 0.8207 0.5681
0.15 54.0 -1.495 0.6158
0.25 42.0 -0.3122 0.5995
0.25 54.0 0.874 0.6644
0.35 282.0 -0.8084 0.4982
0.45 270.0 -0.249 0.4864
0.45 282.0 -0.6754 0.4527
0.45 294.0 -1.0608 0.5276
0.55 258.0 -0.3618 0.4624
0.55 270.0 0.0132 0.3667
0.55 282.0 0.1341 0.3459
0.55 294.0 0.2021 0.4536
0.65 246.0 0.7088 0.5458
0.65 258.0 0.4625 0.4027
0.65 270.0 -0.2707 0.318
0.65 282.0 -0.5961 0.3234
0.65 294.0 -0.3882 0.5035
0.75 138.0 -0.6198 0.6157
0.75 234.0 -0.1145 0.5356
0.75 246.0 -0.3339 0.4974
0.75 258.0 0.7216 0.3414
0.75 270.0 0.1999 0.3275
0.75 282.0 0.168 0.3798
0.75 294.0 -0.2837 0.4814
0.85 114.0 -0.4851 0.621
0.85 126.0 0.4863 0.4886
0.85 138.0 -0.5932 0.4155
0.85 150.0 0.4737 0.3961
0.85 162.0 -0.169 0.3601
0.85 174.0 -0.2463 0.4079
0.85 186.0 -0.6926 0.3721
0.85 198.0 0.1423 0.4535
0.85 210.0 -0.783 0.3814
0.85 222.0 0.3174 0.5699
0.85 246.0 0.3412 0.5023
0.85 258.0 0.5353 0.4134
0.85 270.0 0.0548 0.3665
0.85 282.0 0.1186 0.4266
0.95 126.0 0.936 0.3926
0.95 138.0 -0.4584 0.3826
0.95 150.0 0.749 0.3006
0.95 162.0 0.5171 0.3452
0.95 174.0 -0.262 0.3639
0.95 186.0 -0.1129 0.3564
0.95 198.0 0.641 0.3949
0.95 210.0 0.2015 0.4055