CLAS Physics Database

Measurement E151M3465

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: 0.6357
Q2: 0.5925 GeV2
W: 1415.0 GeV
Ebeam: 2.999 GeV
ε: 0.8954

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 78.0 0.1479 0.2801
0.45 90.0 -0.357 0.2413
0.55 78.0 0.1046 0.2774
0.55 90.0 0.0552 0.2556
0.65 78.0 -0.2229 0.2416
0.65 90.0 0.0578 0.2764
0.65 102.0 0.2094 0.2657
0.65 114.0 0.1374 0.2632
0.65 270.0 -0.0101 0.2872
0.75 54.0 0.2943 0.2622
0.75 78.0 0.0374 0.2605
0.75 90.0 0.0317 0.2464
0.75 246.0 -0.0133 0.2782
0.75 258.0 -0.0917 0.2785
0.75 282.0 0.2608 0.2404
0.75 294.0 -0.0782 0.2682
0.85 90.0 -0.0776 0.2454
0.85 246.0 0.0849 0.2781
0.85 270.0 -0.346 0.2241
0.85 282.0 0.0279 0.2329
0.85 294.0 0.2002 0.2326
0.85 306.0 0.2364 0.1874
0.85 318.0 0.0477 0.2586
0.85 330.0 0.1742 0.2269
0.95 222.0 -0.7581 0.2032
0.95 258.0 -0.1714 0.2729
0.95 282.0 0.5733 0.2245
0.95 294.0 0.3489 0.2522