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Measurement E151M1876

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: ALL
εL: 0.0354
Q2: 0.0348 GeV2
W: 1595.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8341

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty
0.25 90.0 0.2073 1.022
0.35 66.0 -0.1225 0.8934
0.35 78.0 2.0367 0.7673
0.35 90.0 0.4773 0.9477
0.35 270.0 0.0915 0.9141
0.35 282.0 -0.4092 0.802
0.45 18.0 -1.156 0.8737
0.45 66.0 0.9294 0.9409
0.45 78.0 0.7457 0.7639
0.45 126.0 0.3122 0.9744
0.45 138.0 0.6504 1.0097
0.45 246.0 -0.7281 0.9348
0.45 258.0 -0.8439 0.8155
0.45 270.0 0.0349 0.7095
0.45 282.0 -0.0962 0.714
0.45 294.0 -0.5495 0.8098
0.55 78.0 -0.1965 0.833
0.55 90.0 -0.3442 0.8296
0.55 114.0 -1.188 0.7851
0.55 126.0 -0.71 0.8079
0.55 138.0 -1.2125 0.724
0.55 150.0 0.1523 0.9299
0.55 210.0 -0.1609 0.7333
0.55 222.0 -0.7409 0.9431
0.55 258.0 -0.2462 0.8123
0.55 270.0 0.1728 0.682
0.55 282.0 1.3146 0.6733
0.65 78.0 -1.9055 0.7979
0.65 114.0 -1.8608 0.7355
0.65 126.0 -0.8796 0.7002
0.65 138.0 -0.1118 0.7985
0.65 150.0 -0.0841 0.9013
0.65 198.0 0.5337 0.8038
0.65 210.0 0.8432 0.6939
0.65 222.0 -0.5229 0.6822
0.65 234.0 -1.4451 0.7928
0.65 246.0 0.6596 0.9061
0.65 282.0 0.2297 0.8883
0.65 294.0 2.2766 0.5659
0.75 54.0 0.3391 0.8738
0.75 66.0 0.4679 0.6687
0.75 78.0 -0.3472 0.8137
0.75 126.0 -1.0265 0.8985
0.75 138.0 -0.1383 0.8807
0.75 198.0 -0.5812 0.8585
0.75 210.0 -0.5681 0.643
0.75 222.0 -0.0299 0.6407
0.75 234.0 -0.2729 0.8621
0.75 258.0 -1.8281 0.6672
0.75 270.0 -0.3887 0.5893
0.75 282.0 -0.3052 0.6977
0.75 294.0 -0.1363 0.8059
0.85 102.0 1.9145 0.8138
0.85 114.0 0.3192 0.7278
0.85 126.0 0.6227 0.7487
0.85 198.0 0.4321 0.9292
0.85 210.0 -1.3267 0.719
0.85 222.0 1.0077 0.5705
0.85 234.0 -0.4156 0.8161
0.85 246.0 0.0804 0.8989
Created in SINP MSU, CLAS Collaboration