CLAS Physics Database

Measurement E151M327

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: 0.3646
Q2: 0.2445 GeV2
W: 1385.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6963

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.65 258.0 0.4965 0.9841
0.75 126.0 0.0399 1.107
0.75 258.0 -0.7914 0.688
0.75 270.0 -0.4096 0.7271
0.85 282.0 -0.1667 0.8017
0.85 294.0 -0.2021 0.9193
0.55 258.0 0.1362 0.6402
0.75 246.0 -0.2606 0.6581
0.75 258.0 -1.1053 0.6345
0.75 270.0 -0.525 0.6794
0.75 282.0 -0.5351 0.6515
0.85 282.0 -0.9535 0.5534
0.85 294.0 0.1264 0.6269
0.95 78.0 -0.0516 0.5157
0.95 258.0 -0.501 0.5329
0.95 270.0 -0.3636 0.5242
0.95 294.0 0.0333 0.5372