CLAS Physics Database

Measurement E151M3475

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: 0.5084
Q2: 0.4155 GeV2
W: 1445.0 GeV
Ebeam: 2.999 GeV
ε: 0.9154

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 54.0 0.0636 0.2667
0.15 66.0 0.3806 0.2616
0.15 294.0 -0.1138 0.2734
0.25 66.0 -0.6797 0.2099
0.25 294.0 0.5646 0.1987
0.35 294.0 0.2804 0.2631
0.45 90.0 0.0633 0.2527
0.55 78.0 -0.0473 0.1978
0.55 90.0 0.4015 0.1805
0.55 102.0 0.08 0.2023
0.55 114.0 -0.1657 0.241
0.65 78.0 0.0011 0.1761
0.65 90.0 0.0828 0.2008
0.65 102.0 0.0569 0.2112
0.65 114.0 0.1078 0.222
0.65 234.0 0.1306 0.2643
0.65 246.0 -0.1354 0.2793
0.65 258.0 -0.2677 0.2207
0.65 270.0 0.0369 0.2253
0.65 282.0 0.1724 0.2629
0.75 54.0 -0.0185 0.199
0.75 78.0 0.3374 0.1693
0.75 90.0 -0.1695 0.1792
0.75 102.0 0.0158 0.1873
0.75 114.0 -0.3486 0.184
0.75 126.0 0.1106 0.2579
0.75 234.0 0.0511 0.2299
0.75 246.0 -0.2467 0.2109
0.75 258.0 -0.041 0.1854
0.75 270.0 0.1144 0.1771
0.75 282.0 0.0038 0.22
0.75 294.0 -0.2526 0.2546
0.85 54.0 0.4105 0.2238
0.85 78.0 -0.1612 0.2646
0.85 90.0 -0.1875 0.1843
0.85 102.0 0.2934 0.1826
0.85 114.0 -0.0958 0.2215
0.85 198.0 -0.1297 0.273
0.85 210.0 -0.0651 0.2474
0.85 222.0 0.1287 0.2344
0.85 234.0 0.0968 0.2203
0.85 246.0 0.1055 0.2036
0.85 258.0 0.0643 0.2175
0.85 270.0 0.3817 0.156
0.85 282.0 0.0499 0.1655
0.85 294.0 -0.2271 0.1758
0.85 306.0 0.1725 0.1833
0.85 318.0 -0.1318 0.1905
0.95 234.0 -0.1867 0.235
0.95 258.0 -0.1756 0.222
0.95 282.0 -0.5152 0.1963
0.95 294.0 -0.3717 0.1951
0.95 306.0 -0.1978 0.2109
0.95 318.0 0.007 0.1959
0.95 330.0 0.2238 0.2083
0.95 342.0 -0.2181 0.2531