CLAS Physics Database

Measurement E151M3610

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: 0.0986
Q2: 0.205 GeV2
W: 1775.0 GeV
Ebeam: 2.999 GeV
ε: 0.8368

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 210.0 0.1903 0.2713 0.0302
0.65 282.0 -0.4509 0.2374 0.0313
0.65 294.0 0.2877 0.2402 0.0305
0.75 90.0 -0.0784 0.2705 0.03
0.75 198.0 -0.2471 0.2545 0.0304
0.75 210.0 -0.1866 0.273 0.0302
0.75 222.0 -0.1588 0.2389 0.0302
0.75 234.0 0.0372 0.2785 0.03
0.85 78.0 0.3075 0.2527 0.0306
0.85 90.0 0.2927 0.2337 0.0306
0.85 102.0 0.0911 0.2691 0.0301
0.85 114.0 0.1253 0.2378 0.0301
0.85 186.0 -0.0846 0.2539 0.03
0.85 198.0 -0.1347 0.2133 0.0301
0.85 210.0 -0.0437 0.2306 0.03
0.85 222.0 -0.2158 0.2167 0.0303
0.85 234.0 0.2366 0.2337 0.0304
0.85 246.0 -0.3972 0.2328 0.031
0.95 186.0 -0.5329 0.2329 0.0318
0.95 198.0 0.0971 0.2737 0.0301
0.95 210.0 -0.0607 0.2613 0.03
0.95 222.0 0.2723 0.2608 0.0305
0.95 234.0 0.3375 0.2475 0.0307
0.95 246.0 0.079 0.2215 0.03