CLAS Physics Database

Measurement E151M1106

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: 0.2897
Q2: 0.496 GeV2
W: 1625.0 GeV
Ebeam: 2.999 GeV
ε: 0.8443

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 90.0 -0.6182 0.7998
0.65 102.0 -0.3547 0.8562
0.65 114.0 -1.8609 0.5835
0.75 234.0 -0.3764 0.7633
0.75 258.0 0.8712 0.9746
0.85 66.0 0.9039 0.9824
0.85 78.0 1.4448 1.0353
0.85 222.0 -0.6818 0.7491
0.85 234.0 0.3373 0.7786
0.85 246.0 -0.5229 0.6339
0.85 258.0 0.7176 0.7806
0.85 270.0 -0.3151 0.8339
0.85 282.0 1.0556 0.947
0.95 234.0 -0.2352 0.6684
0.95 246.0 0.7206 0.8103
0.95 258.0 -0.1113 0.7645
0.95 270.0 -0.3058 0.7036
0.95 282.0 -0.3009 0.6945
0.95 294.0 -0.0358 0.6866
0.95 306.0 0.3948 0.7693
0.95 318.0 0.2284 0.7754