CLAS Physics Database

Measurement E151M896

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: 0.0457
Q2: 0.0496 GeV2
W: 1625.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8561

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.45 78.0 0.1312 0.7547 0.0324
0.45 102.0 0.5877 0.8615 0.062
0.45 258.0 -0.001 0.6617 0.03
0.45 270.0 0.1915 0.6288 0.0348
0.55 258.0 2.1512 2.1512 0.2008
0.55 270.0 -0.1491 0.5502 0.033
0.65 114.0 1.0816 0.8076 0.1042
0.65 126.0 -1.3989 0.6912 0.1325
0.65 138.0 -1.0357 0.7443 0.1002
0.65 210.0 -0.1476 0.7229 0.0329
0.65 282.0 -0.589 0.6289 0.0621
0.75 126.0 -1.4514 0.6881 0.1373
0.75 198.0 0.9912 0.9154 0.0963
0.75 210.0 0.8875 0.8395 0.0872
0.75 222.0 0.4098 0.7727 0.0483
0.75 270.0 -0.9178 0.4735 0.0899
0.75 282.0 0.6923 0.5577 0.0706
0.85 90.0 -0.6093 0.9011 0.0637
0.85 102.0 -1.5675 0.7707 0.1477
0.85 114.0 -1.1828 0.6963 0.1132
0.85 126.0 -0.6208 0.9119 0.0647
0.85 198.0 -0.1165 0.8548 0.0319
0.85 222.0 -0.8284 0.6652 0.0821
0.85 246.0 0.4436 0.892 0.0508
0.35 78.0 -1.1289 0.5034 0.0799
0.45 126.0 0.3771 0.8177 0.0389
0.45 270.0 -0.4306 0.6866 0.0412
0.55 138.0 -0.7923 0.7217 0.06
0.55 246.0 0.42 0.8077 0.0407
0.55 258.0 0.7879 0.7444 0.0598
0.55 270.0 1.1113 0.6747 0.0789
0.55 282.0 -1.4196 0.5277 0.0979
0.65 78.0 -0.3557 0.6687 0.038
0.65 114.0 0.2835 0.6997 0.0353
0.65 126.0 -0.5338 0.5716 0.0461
0.65 198.0 -0.2003 0.8518 0.0328
0.65 210.0 1.466 0.7559 0.1008
0.65 222.0 0.5967 0.8403 0.0493
0.65 282.0 0.1897 0.6975 0.0325
0.65 294.0 0.166 0.6982 0.0319
0.75 66.0 -0.4573 0.5652 0.0424
0.75 210.0 -0.8521 0.7689 0.0635
0.75 222.0 0.8952 0.796 0.066
0.75 270.0 0.8504 0.7428 0.0634
0.75 282.0 1.088 0.7351 0.0774
0.75 294.0 -0.6101 0.6343 0.05
0.85 102.0 -0.6799 0.6449 0.0538
0.85 114.0 0.2672 0.7771 0.0347
0.85 198.0 0.7926 0.9055 0.06
0.85 210.0 0.5467 0.7471 0.0468
0.85 270.0 0.0253 0.7846 0.03