CLAS Physics Database

Measurement E151M2750

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: ALU
εL: 0.4054
Q2: 0.205 GeV2
W: 1355.0 GeV
Ebeam: 1.3383 GeV
ε: 0.7564

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.75 126.0 0.4135 0.304
0.75 138.0 0.234 0.4038
0.75 234.0 -0.2977 0.3455
0.75 270.0 -0.1176 0.3248
0.85 126.0 -0.0078 0.4154
0.85 234.0 0.7495 0.1766
0.85 258.0 0.3494 0.2928
0.85 270.0 -0.4008 0.3001
0.85 294.0 -0.1507 0.3591
0.95 126.0 0.0106 0.4097
0.95 294.0 0.1443 0.3417
0.65 270.0 -0.4039 0.2352
0.65 282.0 0.1617 0.2651
0.75 138.0 -0.1738 0.2667
0.75 246.0 -0.4923 0.2228
0.75 258.0 -0.0168 0.2305
0.75 270.0 -0.1147 0.248
0.85 114.0 0.1307 0.2719
0.85 126.0 -0.1814 0.2573
0.85 138.0 -0.2649 0.2626
0.85 150.0 -0.5896 0.2538
0.85 258.0 -0.0045 0.2433
0.85 270.0 0.1496 0.2521
0.85 282.0 -0.1515 0.25
0.85 294.0 0.1885 0.2736
0.95 78.0 0.315 0.2727