CLAS Physics Database

Measurement E151M1983

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: 0.7996
Q2: 0.2915 GeV2
W: 1295.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9222

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.75 90.0 3.6075 1.7394 0.3329
0.75 102.0 0.963 1.8182 0.0934
0.75 270.0 -0.8446 1.5639 0.0832
0.85 90.0 1.5435 2.0642 0.145
0.85 114.0 2.2447 2.1949 0.2085
0.85 270.0 -2.5991 1.9354 0.2407
0.85 294.0 -0.4846 1.9326 0.0537
0.85 306.0 0.3164 1.8263 0.0418
0.65 258.0 1.2862 0.6401 0.0889
0.65 270.0 0.4803 0.564 0.0433
0.75 78.0 0.0664 0.6017 0.0303
0.75 114.0 0.2999 0.6675 0.0358
0.75 258.0 0.4549 0.5845 0.0421
0.75 270.0 1.7014 0.4182 0.1147
0.75 282.0 0.5435 0.516 0.0464
0.75 294.0 0.0458 0.5306 0.0301
0.85 78.0 0.0745 0.5975 0.0304
0.85 102.0 0.6897 0.6595 0.054
0.85 246.0 -0.4305 0.6653 0.041
0.85 282.0 -0.3905 0.6518 0.0393
0.85 306.0 -0.8212 0.5866 0.0613
0.95 306.0 1.7776 0.8381 0.1195