CLAS Physics Database

Measurement E151M1433

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: 0.8855
Q2: 0.1435 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8961

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty
0.35 282.0 -0.168 0.6219
0.45 282.0 0.3048 0.5758
0.55 270.0 -0.5001 0.5763
0.55 282.0 -0.4441 0.4557
0.55 294.0 -0.094 0.6135
0.65 282.0 -0.2758 0.5159
0.75 270.0 -0.2092 0.5937
0.85 90.0 0.0954 0.6347
0.95 102.0 0.3769 0.5098
0.95 114.0 -0.2833 0.4871
0.95 150.0 0.1034 0.4542
0.35 294.0 -1.1661 0.6418
0.45 282.0 0.3612 0.8298
0.45 294.0 0.1771 0.7642
0.55 270.0 -0.2506 0.6992
0.55 282.0 -0.6361 0.5626
0.55 294.0 -0.0297 0.7637
0.65 282.0 -1.0662 0.4191
0.65 294.0 -1.4237 0.3597
0.75 270.0 1.6113 1.6113
0.85 114.0 0.0165 0.9049
0.85 126.0 0.8437 0.6981
0.95 102.0 -0.3507 0.6076
0.95 114.0 0.11 0.7319