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Measurement E151M2937

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: 0.5708
Q2: 0.1205 GeV2
W: 1265.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9498

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 66.0 -0.1731 0.1878
0.25 78.0 0.3417 0.2509
0.35 66.0 -0.0147 0.1761
0.35 78.0 0.2304 0.2232
0.45 66.0 0.1692 0.2028
0.45 78.0 -0.0029 0.1848
0.45 282.0 -0.0869 0.2731
0.45 294.0 0.5114 0.2748
0.55 66.0 0.0212 0.2604
0.55 78.0 0.0203 0.1973
0.55 270.0 0.2154 0.207
0.55 282.0 -0.0102 0.193
0.55 294.0 0.316 0.2542
0.65 258.0 0.6239 0.1472
0.65 270.0 0.0328 0.158
0.65 282.0 -0.1257 0.2106
0.75 90.0 -0.033 0.271
0.75 102.0 0.1057 0.2088
0.75 114.0 0.0132 0.1946
0.75 126.0 0.1305 0.2544
0.75 246.0 -0.3507 0.2178
0.75 258.0 -0.0695 0.2028
0.75 270.0 -0.1157 0.1706
0.75 282.0 -0.077 0.1804
0.85 90.0 -0.09 0.2107
0.85 102.0 -0.0003 0.1561
0.85 114.0 0.0941 0.161
0.85 126.0 -0.0288 0.1597
0.85 138.0 -0.2171 0.1833
0.85 234.0 0.5453 0.2422
0.85 246.0 0.0289 0.2151
0.85 258.0 -0.0748 0.1724
0.85 270.0 0.1188 0.1536
0.85 282.0 -0.2579 0.1728
0.95 90.0 0.122 0.2159
0.95 102.0 -0.1647 0.1907
0.95 114.0 -0.0126 0.1717
0.95 126.0 -0.1329 0.1784
0.95 138.0 0.1303 0.2035
0.95 150.0 0.241 0.2156
0.95 162.0 0.2738 0.2011
0.95 174.0 0.134 0.2138
0.95 186.0 -0.2249 0.2649
0.95 234.0 0.181 0.2599
0.95 246.0 -0.0497 0.2619
0.95 258.0 -0.4545 0.2489
0.95 270.0 -0.091 0.2472
Created in SINP MSU, CLAS Collaboration