CLAS Physics Database

Measurement E151M2571

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: 0.0208
Q2: 0.0084 GeV2
W: 1385.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7654

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 42.0 0.2908 0.2122 0.0306
0.35 54.0 0.1433 0.2368 0.0301
0.45 42.0 0.3342 0.1863 0.0307
0.45 54.0 -0.2066 0.1953 0.0303
0.55 30.0 -0.0305 0.2269 0.03
0.55 42.0 -0.1137 0.1689 0.0301
0.55 54.0 0.0973 0.1723 0.0301
0.55 162.0 0.6204 0.2159 0.0325
0.55 222.0 -0.0442 0.2243 0.03
0.55 234.0 -0.0778 0.1901 0.03
0.55 246.0 -0.1574 0.1575 0.0302
0.65 30.0 -0.1728 0.2515 0.0302
0.65 42.0 -0.0014 0.2103 0.03
0.65 54.0 0.0439 0.2208 0.03
0.65 150.0 -0.0936 0.2317 0.0301
0.65 162.0 -0.1173 0.255 0.0301
0.65 174.0 0.018 0.244 0.03
0.65 210.0 -0.4274 0.2184 0.0312
0.65 222.0 0.2932 0.2084 0.0306
0.65 234.0 -0.3462 0.1551 0.0308
0.65 246.0 0.1244 0.1498 0.0301
0.65 258.0 0.2253 0.2532 0.0303
0.75 162.0 0.404 0.2371 0.0311
0.75 210.0 -0.2299 0.2489 0.0304
0.75 222.0 -0.0298 0.1821 0.03
0.75 234.0 -0.2439 0.1668 0.0304
0.75 246.0 0.0432 0.1895 0.03
0.85 222.0 0.2803 0.2024 0.0305
0.85 234.0 -0.2387 0.191 0.0304
0.85 246.0 0.0941 0.1986 0.0301
0.85 258.0 0.0124 0.2497 0.03