CLAS Physics Database

Measurement E151M311

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: 0.0394
Q2: 0.0143 GeV2
W: 1385.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8632

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 42.0 0.7905 0.579
0.55 42.0 0.1941 0.5775
0.55 126.0 -0.8913 0.6353
0.55 222.0 -0.371 0.6384
0.55 234.0 1.411 0.4953
0.55 246.0 -0.5814 0.5704
0.65 42.0 0.2919 0.6467
0.65 126.0 0.3342 0.6849
0.65 138.0 -0.4135 0.5828
0.65 150.0 0.0797 0.5706
0.65 162.0 0.2965 0.677
0.65 210.0 -0.2238 0.6181
0.65 222.0 1.0737 0.5254
0.65 234.0 -0.6646 0.4193
0.65 246.0 -0.1639 0.5116
0.75 138.0 -0.5672 0.6409
0.75 150.0 -0.562 0.6021
0.75 210.0 -0.7498 0.496
0.75 222.0 0.2593 0.4881
0.75 234.0 -0.3038 0.4511
0.75 246.0 -0.1254 0.5155
0.75 258.0 -1.0767 0.4663
0.85 210.0 0.0367 0.6216
0.85 222.0 0.1386 0.4861
0.85 234.0 -0.3404 0.4352
0.85 246.0 0.2424 0.4872
0.45 42.0 0.9616 1.1541
0.55 42.0 -0.6536 0.6081
0.55 222.0 -0.4808 0.6961
0.55 234.0 0.6607 0.9153
0.55 246.0 1.136 1.0319
0.65 126.0 1.0943 1.198
0.65 138.0 -0.5953 0.7481
0.65 210.0 -0.0283 0.8173
0.65 222.0 3.4512 3.4512
0.65 234.0 -0.6726 0.4428
0.65 246.0 -0.1642 0.7002
0.75 138.0 -0.1387 0.9863
0.75 150.0 -0.8656 0.7025
0.75 210.0 -0.5636 0.7659
0.75 222.0 1.2343 1.0149
0.75 234.0 -0.8086 0.5003
0.75 246.0 -0.0397 0.6293
0.75 258.0 -0.6762 0.7055
0.85 210.0 -0.1729 0.7839
0.85 222.0 -0.1448 0.5844
0.85 234.0 0.0968 0.6261
0.85 246.0 0.3662 0.7598