CLAS Physics Database

Measurement E151M13

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: 0.5351
Q2: 0.0707 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8863

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 294.0 -0.7818 0.4074
0.45 270.0 0.0279 0.5063
0.45 282.0 -0.0587 0.3743
0.45 294.0 -0.2078 0.4428
0.55 270.0 -0.1552 0.3614
0.55 282.0 -0.272 0.3313
0.65 258.0 0.3443 0.4419
0.65 270.0 0.252 0.4063
0.65 282.0 -0.1865 0.3399
0.75 258.0 0.1716 0.441
0.75 270.0 -0.5207 0.3424
0.75 282.0 0.2202 0.4433
0.85 150.0 0.4026 0.376
0.85 162.0 -0.0899 0.3533
0.85 174.0 0.6127 0.3761
0.85 186.0 0.239 0.3748
0.85 198.0 -0.0939 0.3754
0.85 210.0 -0.5279 0.3284
0.85 222.0 -0.0132 0.3962
0.95 138.0 -0.3732 0.287
0.95 150.0 0.1456 0.3217
0.95 162.0 0.3857 0.3575
0.95 174.0 -0.2204 0.3367
0.95 186.0 -0.2677 0.2664
0.95 198.0 -0.5735 0.3056
0.95 210.0 -0.2701 0.3266