CLAS Physics Database

Measurement E151M6

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: AUL
εL: 0.1911
Q2: 0.0205 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.9279

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 246.0 0.7019 0.5082
0.55 258.0 -0.6589 0.4173
0.55 270.0 0.2915 0.365
0.55 282.0 -0.285 0.3924
0.65 246.0 -0.4752 0.3415
0.65 258.0 -0.7286 0.2573
0.65 270.0 -0.6261 0.2801
0.65 282.0 -0.3557 0.3928
0.75 162.0 0.0304 0.4605
0.75 174.0 -0.301 0.4052
0.75 186.0 0.4645 0.3739
0.75 198.0 -0.0295 0.3806
0.75 210.0 0.2345 0.4033
0.75 222.0 0.3551 0.4414
0.75 234.0 0.1816 0.4983
0.75 246.0 0.1509 0.385
0.75 258.0 0.3347 0.3908
0.85 150.0 -0.3146 0.4048
0.85 162.0 -0.5258 0.3546
0.85 174.0 -0.0619 0.3182
0.85 186.0 0.4195 0.4023
0.85 198.0 -0.2435 0.3415
0.85 210.0 -0.0711 0.3495
0.85 222.0 -0.3007 0.4216