CLAS Physics Database

Measurement E151M12

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: 0.4697
Q2: 0.0593 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8959

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 282.0 0.5349 0.4438
0.55 270.0 -0.6291 0.2852
0.55 282.0 -0.0987 0.3499
0.65 258.0 -0.9585 0.3156
0.65 270.0 -0.2229 0.3032
0.65 282.0 -0.4175 0.3432
0.75 258.0 -0.4712 0.3766
0.75 270.0 0.5028 0.3742
0.75 282.0 0.5265 0.4688
0.85 150.0 0.129 0.3759
0.85 162.0 0.129 0.3869
0.85 174.0 0.1521 0.3711
0.85 186.0 -0.7393 0.2576
0.85 198.0 -0.2427 0.3869
0.85 210.0 0.0447 0.3477
0.85 222.0 0.3356 0.3882
0.85 246.0 -0.3397 0.4243
0.85 258.0 0.1945 0.415
0.95 150.0 0.1941 0.4024
0.95 162.0 -0.1789 0.2971
0.95 174.0 -0.046 0.2903
0.95 186.0 -0.2847 0.3051
0.95 198.0 0.1161 0.3331
0.95 210.0 -0.1443 0.3763
0.95 222.0 0.6071 0.3469