CLAS Physics Database

Measurement E151M14

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: 0.6043
Q2: 0.0844 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8747

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 282.0 -0.5757 0.4068
0.55 270.0 0.5687 0.3426
0.55 282.0 -0.0576 0.3549
0.55 294.0 -0.3783 0.4027
0.65 258.0 0.2587 0.4612
0.65 270.0 -0.3124 0.3536
0.65 282.0 0.1661 0.3247
0.75 258.0 -0.6306 0.3624
0.75 270.0 0.0338 0.3592
0.75 282.0 0.0166 0.4161
0.85 138.0 0.1521 0.4289
0.85 150.0 0.0884 0.3844
0.85 162.0 0.0549 0.4128
0.85 174.0 -0.1164 0.3892
0.85 186.0 -0.1196 0.3772
0.85 198.0 0.0893 0.4193
0.85 210.0 -0.4479 0.4178
0.85 222.0 0.4248 0.4388
0.85 234.0 -0.0371 0.4748
0.95 126.0 -0.2376 0.3583
0.95 138.0 0.0715 0.3391
0.95 150.0 0.103 0.3592
0.95 162.0 0.2243 0.3153
0.95 174.0 -0.2337 0.3423
0.95 186.0 -0.1054 0.2791
0.95 198.0 -0.2452 0.3109
0.95 210.0 -0.4199 0.2652
0.95 222.0 -0.2041 0.3061