CLAS Physics Database

Measurement E151M3343

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: 0.0738
Q2: 0.0844 GeV2
W: 1625.0 GeV
Ebeam: 2.2596 GeV
ε: 0.845

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 126.0 -0.1476 0.2265 0.0301
0.65 282.0 0.055 0.2562 0.03
0.65 294.0 0.1223 0.2445 0.0301
0.75 282.0 -0.0783 0.1948 0.03
0.75 294.0 -0.0517 0.2429 0.03
0.85 102.0 0.0795 0.2414 0.03
0.85 114.0 -0.0732 0.2603 0.03
0.85 246.0 0.0481 0.2599 0.03
0.55 282.0 -0.3816 0.2234 0.031
0.65 114.0 -0.0309 0.2413 0.03
0.65 210.0 -0.1058 0.2549 0.0301
0.65 222.0 0.0073 0.2586 0.03
0.65 294.0 -0.0716 0.2243 0.03
0.75 126.0 -0.2357 0.2518 0.0304
0.75 222.0 -0.066 0.2219 0.03
0.75 234.0 -0.0886 0.2552 0.0301
0.75 282.0 -0.1668 0.228 0.0302
0.85 102.0 0.3593 0.2388 0.0308
0.85 114.0 0.3429 0.2231 0.0308
0.85 222.0 0.5157 0.1976 0.0317
0.85 234.0 -0.0513 0.2403 0.03
0.95 246.0 0.0379 0.2548 0.03