CLAS Physics Database

Measurement E151M2765

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: 0.1923
Q2: 0.0844 GeV2
W: 1385.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8144

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 246.0 0.0806 0.2401
0.55 258.0 -0.2927 0.1953
0.65 126.0 -0.0165 0.1808
0.65 138.0 -0.233 0.1815
0.65 222.0 -0.3383 0.1805
0.65 234.0 0.0975 0.1834
0.65 246.0 -0.0531 0.1583
0.65 258.0 -0.1239 0.1824
0.75 114.0 -0.0347 0.1835
0.75 126.0 0.0224 0.1688
0.75 138.0 -0.1084 0.1659
0.75 150.0 0.0275 0.1838
0.75 162.0 -0.4646 0.3025
0.75 210.0 0.2933 0.2739
0.75 222.0 0.3527 0.142
0.75 234.0 -0.0081 0.1621
0.75 246.0 0.0989 0.1634
0.75 258.0 -0.2073 0.1561
0.75 270.0 0.1981 0.1792
0.85 114.0 -0.2826 0.1644
0.85 126.0 -0.4002 0.1433
0.85 138.0 0.2102 0.1771
0.85 150.0 0.3137 0.3815
0.85 162.0 -0.0745 0.2065
0.85 222.0 -0.072 0.2558
0.85 234.0 0.3711 0.1516
0.85 246.0 -0.052 0.1592
0.85 258.0 -0.0372 0.1651
0.85 270.0 0.0985 0.1486
0.85 282.0 0.2494 0.2066
0.95 90.0 0.0655 0.3692
0.95 102.0 0.0729 0.185
0.95 114.0 0.1614 0.3293
0.95 126.0 0.2348 0.4356
0.95 138.0 -0.6226 0.3147
0.95 234.0 0.1088 0.3152
0.95 246.0 -0.2238 0.1807
0.95 258.0 0.3665 0.1673
0.95 270.0 -0.0397 0.1692
0.95 282.0 -0.2077 0.1641