CLAS Physics Database

Measurement E151M2876

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: 0.0548
Q2: 0.0707 GeV2
W: 1565.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5916

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 222.0 -0.1319 0.2182
0.55 234.0 0.0979 0.2211
0.65 234.0 0.3054 0.2804
0.65 246.0 -0.2951 0.2744
0.75 138.0 0.0788 0.241
0.75 162.0 0.3363 0.2444
0.75 222.0 -0.1572 0.2726
0.75 246.0 0.1515 0.2268
0.85 222.0 0.1893 0.2764
0.85 234.0 -0.0878 0.2472
0.85 246.0 -0.2299 0.2201
0.85 258.0 -0.1359 0.2908
0.95 138.0 0.132 0.2699
0.55 246.0 -0.1891 0.3878
0.65 222.0 -0.1284 0.3352
0.65 234.0 -0.243 0.3014
0.75 234.0 -0.1424 0.3934
0.75 246.0 -0.5168 0.2373
0.75 258.0 0.3463 0.3229
0.85 234.0 0.5501 0.2731
0.85 246.0 -0.1078 0.2897