CLAS Physics Database

Measurement E151M3302

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: 0.0574
Q2: 0.0415 GeV2
W: 1535.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9039

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 78.0 0.2437 0.1613 0.0306
0.55 78.0 -0.3596 0.2302 0.0309
0.55 114.0 -0.2981 0.234 0.0306
0.55 126.0 0.66 0.1922 0.0328
0.55 282.0 -0.039 0.2407 0.03
0.65 126.0 0.3748 0.2317 0.0309
0.65 138.0 0.4524 0.1945 0.0313
0.65 222.0 -0.0069 0.2325 0.03
0.75 114.0 0.0162 0.2646 0.03
0.75 138.0 0.3494 0.2279 0.0308
0.75 210.0 0.1647 0.2631 0.0302
0.75 234.0 -0.1606 0.2571 0.0302
0.75 282.0 0.0299 0.2401 0.03
0.85 102.0 0.1117 0.2503 0.0301
0.85 114.0 -0.251 0.231 0.0304
0.85 222.0 -0.068 0.2283 0.03
0.85 234.0 -0.0027 0.2128 0.03
0.45 66.0 -0.4243 0.2197 0.0312
0.45 270.0 0.1332 0.2548 0.0301
0.45 282.0 0.2201 0.2569 0.0303
0.55 114.0 0.0127 0.211 0.03
0.55 138.0 -0.4242 0.23 0.0312
0.55 282.0 0.2893 0.202 0.0306
0.65 126.0 -0.2139 0.2441 0.0303
0.65 150.0 0.3643 0.2218 0.0309
0.65 210.0 0.0405 0.2429 0.03
0.65 222.0 0.3791 0.2434 0.0309
0.65 270.0 0.1635 0.2538 0.0302
0.75 126.0 -0.0034 0.2604 0.03
0.75 138.0 0.2714 0.2209 0.0305
0.75 210.0 0.3285 0.2447 0.0307
0.75 222.0 0.0001 0.239 0.03
0.75 234.0 0.1345 0.236 0.0301
0.75 282.0 0.1314 0.2592 0.0301
0.85 102.0 -0.2454 0.2558 0.0304
0.85 114.0 -0.2244 0.2077 0.0303
0.85 210.0 0.2221 0.2272 0.0303
0.85 222.0 -0.1964 0.2217 0.0303
0.85 234.0 -0.2064 0.2605 0.0303