CLAS Physics Database

Measurement E151M3364

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: 0.0354
Q2: 0.0496 GeV2
W: 1685.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8174

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 270.0 -0.3682 0.1608
0.55 258.0 -0.0284 0.2644
0.65 126.0 0.2746 0.2578
0.75 210.0 -0.4916 0.2149
0.75 222.0 -0.0196 0.2571
0.75 270.0 0.476 0.2412
0.75 282.0 -0.2222 0.2051
0.85 210.0 -0.0799 0.2111
0.85 234.0 -0.3831 0.2191
0.45 282.0 0.1036 0.2492
0.55 114.0 -0.2115 0.2227
0.55 270.0 0.1547 0.2648
0.55 282.0 0.4096 0.2483
0.65 114.0 -0.1428 0.2493
0.65 126.0 0.0578 0.2176
0.65 138.0 0.1917 0.2494
0.65 210.0 -0.0249 0.2378
0.65 222.0 0.0259 0.2423
0.75 198.0 -0.2515 0.2474
0.75 210.0 -0.2032 0.2496
0.75 222.0 0.3551 0.2188
0.75 270.0 0.3008 0.211
0.75 282.0 0.0152 0.208
0.85 114.0 0.181 0.2472
0.85 126.0 0.445 0.2098
0.85 210.0 -0.1769 0.2244
0.85 222.0 0.0691 0.2568