CLAS Physics Database

Measurement E151M1851

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: 0.1213
Q2: 0.101 GeV2
W: 1535.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8485

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.25 66.0 -0.7736 0.9063 0.0557
0.35 66.0 -0.0185 0.8486 0.03
0.35 78.0 0.0943 0.8509 0.0305
0.35 282.0 -0.8541 0.7389 0.0598
0.35 294.0 -0.8951 0.7111 0.062
0.45 78.0 0.5776 0.7484 0.0461
0.45 90.0 -0.4901 0.9208 0.0422
0.45 270.0 0.6133 0.7097 0.0478
0.45 282.0 -0.587 0.7866 0.0465
0.45 294.0 -0.2093 0.7861 0.0326
0.55 102.0 -0.4486 0.9782 0.0405
0.55 114.0 0.6927 0.769 0.0516
0.55 222.0 1.1883 0.8086 0.078
0.55 234.0 -0.3096 0.7965 0.0354
0.55 246.0 0.8186 0.8279 0.058
0.55 258.0 1.1058 0.8339 0.0734
0.55 270.0 -1.5093 0.6767 0.0963
0.55 282.0 -2.3475 2.3475 0.1454
0.65 66.0 -0.4486 0.8934 0.0405
0.65 78.0 1.9841 0.725 0.1239
0.65 102.0 0.1051 0.8682 0.0307
0.65 114.0 0.6823 0.6908 0.0511
0.65 126.0 -0.573 0.7662 0.0459
0.65 138.0 -0.7363 0.7122 0.0538
0.65 210.0 -0.6392 0.872 0.049
0.65 222.0 0.9337 0.6409 0.064
0.65 234.0 0.9496 0.6342 0.0649
0.65 294.0 -0.2474 0.6282 0.0335
0.65 306.0 -0.3273 0.8251 0.036
0.75 66.0 -0.4415 0.9057 0.0402
0.75 102.0 -1.0583 0.6726 0.0708
0.75 114.0 -0.9472 0.655 0.0648
0.75 126.0 -0.6027 0.6471 0.0473
0.75 138.0 -0.0407 0.638 0.0301
0.75 210.0 0.4604 0.8704 0.041
0.75 222.0 -0.692 0.639 0.0516
0.75 234.0 -0.2246 0.6055 0.0329
0.75 246.0 0.0777 0.6889 0.0304
0.75 282.0 1.0872 0.7457 0.0724
0.75 294.0 0.1614 0.8082 0.0316
0.85 90.0 0.2475 0.7503 0.0335
0.85 102.0 -1.1609 0.7083 0.0765
0.85 210.0 -0.3417 0.6496 0.0365
0.85 222.0 0.1514 0.6401 0.0314
0.85 234.0 -0.0773 0.6172 0.0304
0.85 246.0 0.3077 0.6361 0.0353
0.85 258.0 0.3066 0.7227 0.0353
0.95 114.0 0.4599 0.7406 0.0409
0.95 222.0 -0.8422 0.6609 0.0592
0.95 234.0 -0.6715 0.5243 0.0506
0.95 246.0 0.838 0.5723 0.059
0.95 258.0 -0.5819 0.7249 0.0463