CLAS Physics Database

Measurement E151M138

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: 0.1223
Q2: 0.0593 GeV2
W: 1385.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7053

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.15 42.0 0.0127 0.7891 0.03
0.25 42.0 0.4626 0.807 0.0606
0.35 30.0 1.3201 0.8889 0.1532
0.35 42.0 -0.0305 0.6451 0.0302
0.35 54.0 0.2041 0.9266 0.0379
0.45 30.0 1.2308 0.9185 0.1432
0.45 42.0 0.536 0.7483 0.068
0.45 246.0 -0.1454 0.8082 0.0343
0.45 258.0 -0.0324 0.741 0.0302
0.55 150.0 -0.7053 0.7618 0.0857
0.55 234.0 1.044 0.7596 0.1225
0.55 246.0 -0.3175 0.4803 0.047
0.55 258.0 -0.0709 0.5799 0.0311
0.55 270.0 -0.7242 0.7483 0.0877
0.65 138.0 -1.109 0.7249 0.1297
0.65 150.0 0.2551 0.7646 0.0417
0.65 162.0 -0.6988 0.6937 0.085
0.65 222.0 -0.2509 0.6053 0.0414
0.65 234.0 1.8142 0.6217 0.2086
0.65 246.0 0.1042 0.5561 0.0323
0.65 258.0 -1.2946 0.4276 0.1503
0.65 270.0 0.9833 0.6633 0.1158
0.75 138.0 -0.7711 0.571 0.0927
0.75 150.0 -0.3292 0.5583 0.048
0.75 162.0 -0.1453 0.7981 0.0343
0.75 174.0 0.3333 0.7288 0.0484
0.75 210.0 0.7709 0.8367 0.0927
0.75 222.0 -0.0625 0.7755 0.0308
0.75 234.0 0.4196 0.5125 0.0564
0.75 246.0 0.7523 0.4838 0.0907
0.75 258.0 0.8035 0.4767 0.0962
0.75 270.0 -1.0853 0.4567 0.1271
0.75 282.0 -2.063 0.4856 0.2366
0.85 126.0 0.417 0.8972 0.0561
0.85 138.0 0.6976 0.8618 0.0848
0.85 150.0 0.4543 0.6239 0.0598
0.85 174.0 -0.4394 0.7729 0.0583
0.85 234.0 0.3196 0.5849 0.0471
0.85 246.0 1.27 0.4446 0.1476
0.85 258.0 0.2502 0.4634 0.0414
0.85 270.0 -0.5494 0.4358 0.0693
0.85 282.0 1.2903 0.6994 0.1498
0.95 246.0 0.3244 0.5899 0.0476
0.95 258.0 -0.1098 0.5296 0.0325
0.95 270.0 -0.311 0.5588 0.0464