CLAS Physics Database

Measurement E151M3587

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: 0.1764
Q2: 0.348 GeV2
W: 1715.0 GeV
Ebeam: 2.999 GeV
ε: 0.8352

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 102.0 -0.3415 0.267
0.65 114.0 0.3151 0.2685
0.65 138.0 0.5714 0.2222
0.65 222.0 0.0279 0.2726
0.75 78.0 0.3781 0.2135
0.75 114.0 0.3992 0.2417
0.75 186.0 -0.0694 0.2651
0.75 198.0 0.1318 0.2524
0.75 210.0 -0.2654 0.2278
0.75 234.0 0.2764 0.2482
0.75 246.0 0.3746 0.2384
0.85 66.0 0.1771 0.2446
0.85 78.0 0.0349 0.275
0.85 90.0 0.4748 0.2336
0.85 102.0 0.0453 0.2716
0.85 186.0 -0.4326 0.2633
0.85 198.0 0.014 0.2311
0.85 210.0 -0.0607 0.2181
0.85 222.0 0.0154 0.1979
0.85 234.0 -0.2438 0.2016
0.85 246.0 -0.1399 0.2587
0.85 258.0 0.1463 0.2844
0.95 186.0 0.0094 0.2419
0.95 198.0 0.1572 0.2055
0.95 210.0 -0.5497 0.229
0.95 222.0 -0.0853 0.2186
0.95 234.0 -0.2128 0.2198
0.95 246.0 -0.4426 0.1954
0.95 258.0 -0.3211 0.2179
0.95 270.0 0.5646 0.2036
0.95 282.0 -0.316 0.2408