CLAS Physics Database

Measurement E151M3618

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: 0.0489
Q2: 0.101 GeV2
W: 1805.0 GeV
Ebeam: 2.999 GeV
ε: 0.8444

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 114.0 0.2233 0.2587 0.0303
0.65 126.0 0.1341 0.2725 0.0301
0.65 198.0 -0.0296 0.2359 0.03
0.65 282.0 -0.4635 0.2219 0.0314
0.75 102.0 -0.6248 0.1884 0.0325
0.75 114.0 0.2041 0.2581 0.0303
0.75 126.0 -0.5433 0.244 0.0319
0.75 186.0 0.0675 0.2539 0.03
0.75 198.0 0.3484 0.2456 0.0308
0.75 210.0 -0.0972 0.2345 0.0301
0.75 222.0 -0.1677 0.2425 0.0302
0.75 234.0 -0.1653 0.2692 0.0302
0.75 270.0 0.1785 0.2093 0.0302
0.75 282.0 0.1662 0.2193 0.0302
0.85 90.0 0.1404 0.2454 0.0301
0.85 102.0 -0.3859 0.1931 0.031
0.85 114.0 -0.289 0.2013 0.0306
0.85 126.0 0.1047 0.2194 0.0301
0.85 174.0 -0.053 0.2319 0.03
0.85 186.0 0.0589 0.2256 0.03
0.85 198.0 0.1743 0.1805 0.0302
0.85 210.0 0.1893 0.1819 0.0302
0.85 222.0 -0.3462 0.2053 0.0308
0.85 234.0 -0.2846 0.2251 0.0305
0.85 282.0 -0.3715 0.2321 0.0309
0.95 114.0 0.3556 0.2421 0.0308
0.95 198.0 0.1172 0.2531 0.0301
0.95 210.0 0.008 0.2384 0.03