CLAS Physics Database

Measurement E151M3432

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: ALU
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] ALU uncertainty syst. uncert.
0.65 270.0 0.0456 0.2763 0.03
0.65 306.0 -0.4149 0.2524 0.0311
0.75 78.0 -0.0908 0.2802 0.0301
0.75 90.0 0.0452 0.2812 0.03
0.75 258.0 -0.109 0.2767 0.0301
0.75 282.0 -0.3539 0.2358 0.0308
0.75 294.0 -0.1871 0.2736 0.0302
0.85 270.0 0.3413 0.2548 0.0308
0.85 306.0 -0.1341 0.2608 0.0301
0.95 258.0 0.078 0.2683 0.03
0.95 294.0 -0.1306 0.2547 0.0301
0.95 318.0 0.1845 0.2644 0.0302