CLAS Physics Database

Measurement E151M78

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: 0.3829
Q2: 0.1205 GeV2
W: 1295.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7589

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 282.0 -0.1416 0.7025
0.55 258.0 -0.3365 0.5738
0.55 270.0 0.9481 0.6197
0.55 282.0 -0.4263 0.593
0.65 258.0 0.2226 0.6271
0.65 270.0 -0.429 0.5657
0.65 282.0 -0.2465 0.6062
0.75 246.0 -0.0271 0.6964
0.75 258.0 -0.0722 0.5504
0.75 270.0 -0.0731 0.5537
0.75 282.0 0.5473 0.6123
0.85 114.0 0.8941 0.7125
0.85 126.0 0.3932 0.677
0.85 138.0 1.9679 0.736
0.85 150.0 0.1729 0.7199
0.85 162.0 -0.544 0.6209
0.85 174.0 0.2683 0.7067
0.85 186.0 -1.3293 0.5353
0.85 270.0 0.1463 0.5115
0.85 282.0 0.1476 0.4773
0.85 294.0 -0.5305 0.5382
0.95 126.0 0.4673 0.6062
0.95 150.0 0.0977 0.59
0.95 186.0 0.2586 0.6023
0.95 198.0 -0.5107 0.4938