CLAS Physics Database

Measurement E151M3113

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: 0.0261
Q2: 0.0291 GeV2
W: 1625.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8139

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 78.0 -0.1239 0.2578 0.0301
0.45 78.0 0.2261 0.2538 0.0303
0.45 90.0 -0.2327 0.2612 0.0304
0.45 138.0 0.2265 0.2641 0.0303
0.45 270.0 0.5177 0.2165 0.0317
0.45 282.0 -0.2039 0.2644 0.0303
0.55 78.0 -0.149 0.2365 0.0301
0.55 198.0 0.2876 0.2876 0.0305
0.55 210.0 0.1761 0.2249 0.0302
0.55 270.0 -0.3398 0.1942 0.0308
0.55 282.0 -0.1537 0.2589 0.0302
0.65 126.0 -0.1903 0.2223 0.0302
0.65 138.0 -0.1568 0.2208 0.0302
0.65 150.0 -0.1465 0.2813 0.0301
0.65 210.0 -0.1995 0.2554 0.0303
0.65 222.0 0.1637 0.2405 0.0302
0.65 282.0 -0.2738 0.2492 0.0305
0.75 66.0 0.1051 0.2505 0.0301
0.75 78.0 -0.006 0.2551 0.03
0.75 210.0 0.0889 0.2147 0.0301
0.75 222.0 -0.0167 0.213 0.03
0.75 270.0 0.4927 0.1789 0.0316
0.75 282.0 0.0079 0.222 0.03
0.75 294.0 0.2053 0.2629 0.0303
0.85 114.0 -0.1481 0.2297 0.0301
0.85 126.0 -0.0201 0.191 0.03
0.85 138.0 -0.2944 0.2311 0.0306
0.85 198.0 -0.3123 0.2221 0.0306
0.85 210.0 0.0992 0.2282 0.0301
0.85 222.0 -0.0259 0.2265 0.03