CLAS Physics Database

Measurement E151M2020

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: ALL
εL: 0.4753
Q2: 0.2445 GeV2
W: 1385.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9078

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.65 90.0 -1.6859 1.3385 0.1578
0.65 102.0 -1.0065 1.3692 0.0972
0.75 90.0 -1.0251 1.3045 0.0989
0.75 102.0 1.1651 1.3896 0.1112
0.75 246.0 0.305 1.1653 0.0411
0.75 258.0 1.9178 1.0464 0.1788
0.75 282.0 -0.5555 1.0795 0.0592
0.85 102.0 -0.6028 1.596 0.063
0.85 114.0 0.4105 1.4971 0.0482
0.85 222.0 0.0814 1.3529 0.0309
0.85 246.0 1.7908 1.3252 0.1673
0.85 258.0 -0.022 1.1481 0.0301
0.85 270.0 0.0808 1.2894 0.0309
0.85 282.0 -0.342 1.1144 0.0434
0.85 294.0 -0.8486 1.0488 0.0836
0.95 246.0 -0.6305 3.7243 0.0652
0.95 282.0 -7.9673 2.7402 0.7328
0.95 294.0 -1.129 3.5375 0.108
0.55 102.0 -0.1963 0.7622 0.0326
0.65 102.0 0.2531 0.6468 0.0342
0.65 258.0 -0.9471 0.7357 0.0685
0.75 90.0 1.6623 0.5682 0.1122
0.75 102.0 -0.3894 0.6305 0.0393
0.75 114.0 -0.4166 0.7757 0.0404
0.75 246.0 -1.6568 0.5754 0.1119
0.75 258.0 0.8949 0.744 0.0655
0.75 270.0 0.6096 0.7575 0.0497
0.85 102.0 1.7166 0.636 0.1156
0.85 210.0 -0.2889 0.9255 0.0354
0.85 234.0 -1.4623 0.881 0.0997
0.85 246.0 0.7795 0.8329 0.0589
0.85 258.0 -0.106 0.7281 0.0308
0.85 270.0 -0.7737 0.7319 0.0586
0.85 282.0 -0.0173 0.6126 0.03
0.95 282.0 1.0785 1.0095 0.0763
0.95 294.0 1.1111 1.1079 0.0783
0.95 306.0 1.1565 1.0763 0.081