CLAS Physics Database

Measurement E151M2605

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: 0.1433
Q2: 0.101 GeV2
W: 1415.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6028

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 246.0 -0.043 0.2171
0.55 258.0 -0.2872 0.2401
0.55 270.0 -0.3319 0.2172
0.65 150.0 0.262 0.2362
0.65 222.0 0.1569 0.2435
0.65 234.0 0.0439 0.2318
0.65 246.0 0.11 0.2113
0.65 258.0 0.0602 0.1835
0.65 270.0 0.0443 0.226
0.75 150.0 -0.3361 0.2409
0.75 162.0 -0.1412 0.2528
0.75 234.0 -0.01 0.2078
0.75 246.0 -0.5172 0.2079
0.75 258.0 0.0593 0.2139
0.75 270.0 0.1254 0.2246
0.85 234.0 -0.4435 0.2162
0.85 246.0 0.2179 0.2062
0.85 258.0 0.2058 0.2366
0.85 270.0 0.1898 0.2119
0.85 282.0 -0.0124 0.241