CLAS Physics Database

Measurement E151M988

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: 0.8938
Q2: 0.7075 GeV2
W: 1325.0 GeV
Ebeam: 2.999 GeV
ε: 0.8986

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.65 270.0 1.2949 0.8447
0.65 306.0 -0.2497 0.6741
0.75 78.0 0.3587 0.7954
0.75 90.0 0.4066 0.82
0.75 258.0 -0.1578 0.6978
0.75 282.0 1.0447 0.7808
0.75 294.0 -0.3088 0.6691
0.85 270.0 -1.1529 0.5041
0.85 306.0 1.0588 0.7472
0.95 258.0 -1.2901 0.4357
0.95 294.0 -0.7744 0.483
0.95 318.0 0.6875 0.675