CLAS Physics Database

Measurement E151M876

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: 0.1113
Q2: 0.101 GeV2
W: 1565.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8731

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 126.0 0.2429 0.7424
0.55 270.0 0.5182 0.687
0.55 282.0 -0.0191 0.734
0.65 102.0 -0.2753 0.7284
0.65 114.0 -0.9918 0.5301
0.65 126.0 -0.3843 0.7488
0.65 222.0 1.2306 0.9222
0.65 246.0 0.1267 0.8183
0.75 114.0 -0.0246 0.8002
0.75 126.0 -0.79 0.7435
0.75 138.0 -1.4466 0.6347
0.75 222.0 1.0566 0.8483
0.75 234.0 -0.2592 0.8019
0.75 294.0 -0.4232 0.6587
0.85 90.0 -1.2629 0.5351
0.85 102.0 -0.3963 0.6521
0.85 210.0 0.0799 0.8733
0.85 222.0 -0.2922 0.659
0.85 234.0 0.6468 0.8382
0.85 246.0 -0.7593 0.724
0.85 282.0 1.2276 0.8742
0.95 234.0 0.3589 1.239
0.95 246.0 -0.2352 1.3611
0.45 282.0 0.0548 0.6698
0.55 114.0 -0.0895 0.8464
0.55 126.0 0.471 0.8887
0.55 258.0 0.2369 0.7362
0.55 270.0 -0.4859 0.621
0.65 126.0 -1.0614 0.6959
0.65 138.0 0.5753 0.8863
0.65 222.0 0.1602 0.7263
0.75 102.0 -0.1306 0.8976
0.75 114.0 0.1337 0.765
0.75 126.0 -0.5586 0.7656
0.75 210.0 0.8275 0.8248
0.75 222.0 0.7871 0.8615
0.75 234.0 0.603 0.8005
0.75 282.0 0.0549 0.6304
0.75 294.0 -0.4406 0.691
0.85 90.0 0.0214 0.9737
0.85 210.0 1.8331 0.9213
0.85 222.0 0.0148 0.8169
0.85 234.0 0.1056 0.8009
0.95 210.0 2.2772 2.7195
0.95 222.0 -1.5835 2.3034
0.95 246.0 -0.9479 2.2182