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Measurement E151M3176

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: 0.544
Q2: 0.0844 GeV2
W: 1235.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9728

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 78.0 0.0359 0.2018
0.55 78.0 -0.1617 0.2292
0.65 270.0 0.2366 0.2162
0.65 282.0 0.1235 0.2427
0.75 258.0 -0.2213 0.2262
0.75 270.0 0.0417 0.2053
0.85 114.0 0.2581 0.2134
0.85 126.0 -0.1714 0.2134
0.85 138.0 0.308 0.2337
0.95 126.0 0.1708 0.2431
0.95 138.0 0.4899 0.1897
0.95 150.0 -0.0382 0.2177
0.95 162.0 -0.2077 0.2798
0.35 78.0 0.0982 0.2622
0.45 78.0 -0.0223 0.1826
0.55 78.0 0.0196 0.2
0.55 90.0 -0.5388 0.2262
0.55 270.0 0.4131 0.2189
0.65 258.0 -0.2723 0.237
0.65 270.0 -0.047 0.1756
0.65 282.0 -0.3271 0.2179
0.75 114.0 -0.3192 0.2276
0.75 246.0 -0.3309 0.2429
0.75 258.0 -0.1099 0.1886
0.75 270.0 -0.2618 0.1961
0.85 102.0 -0.1529 0.2064
0.85 114.0 0.094 0.2153
0.85 126.0 0.0877 0.1759
0.85 138.0 0.3929 0.1774
0.85 150.0 -0.0963 0.2144
0.85 234.0 0.064 0.2392
0.85 246.0 -0.2532 0.2266
0.85 258.0 -0.1664 0.1821
0.85 270.0 -0.2049 0.222
0.95 114.0 0.0474 0.2295
0.95 126.0 0.2222 0.2035
0.95 138.0 0.185 0.2278
0.95 150.0 -0.2538 0.192
0.95 162.0 0.1182 0.2299
0.95 174.0 -0.0611 0.1959
0.95 198.0 0.3022 0.2351
Created in SINP MSU, CLAS Collaboration