CLAS Physics Database

Measurement E151M839

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: 0.2839
Q2: 0.205 GeV2
W: 1475.0 GeV
Ebeam: 2.2596 GeV
ε: 0.885

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 294.0 -1.6123 0.7666
0.65 102.0 -1.2207 1.1031
0.65 114.0 1.7771 1.2596
0.65 126.0 -1.5676 1.0522
0.65 246.0 1.7689 1.0481
0.75 90.0 1.4228 1.2616
0.75 102.0 0.1484 1.1327
0.75 234.0 0.2316 1.1924
0.75 246.0 0.4543 1.078
0.85 90.0 1.3527 1.531
0.85 114.0 -1.4251 1.1264
0.85 222.0 -0.03 1.1859
0.85 246.0 -1.6576 0.8612
0.85 258.0 -0.213 0.9316
0.85 270.0 -1.6449 1.0098
0.95 246.0 1.2462 3.1886
0.95 270.0 8.1355 3.2063
0.95 294.0 -4.0114 2.8381
0.25 282.0 -0.1871 0.592
0.35 282.0 -1.1954 0.4506
0.45 294.0 1.9507 1.9507
0.55 114.0 0.1612 0.6771
0.65 90.0 -0.5375 0.5688
0.65 102.0 -0.2887 0.5769
0.65 246.0 -0.0801 0.7026
0.75 90.0 -0.3505 0.5239
0.75 102.0 0.1677 0.6851
0.75 114.0 0.1448 0.6305
0.75 234.0 -0.1094 0.6273
0.75 258.0 0.8257 0.6406
0.85 66.0 0.0686 0.6462
0.85 78.0 0.05 0.6643
0.85 114.0 0.0194 0.6795
0.85 126.0 -1.7102 0.5414
0.85 222.0 0.0807 0.7722
0.85 234.0 0.284 0.783
0.85 246.0 -0.3771 0.6936
0.85 258.0 0.3736 0.6448
0.95 78.0 0.1059 1.08
0.95 222.0 0.1151 1.234
0.95 258.0 -1.1882 0.9384
0.95 270.0 -0.7511 1.0394
0.95 282.0 -1.111 0.845
0.95 294.0 0.6407 0.8805