CLAS Physics Database

Measurement E151M3321

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: 0.129
Q2: 0.1205 GeV2
W: 1565.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8673

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 114.0 -0.3416 0.1736
0.65 102.0 -0.149 0.2362
0.65 114.0 -0.0456 0.2331
0.65 138.0 0.0574 0.2605
0.65 222.0 0.2238 0.2407
0.65 234.0 0.0529 0.1734
0.75 102.0 0.3128 0.2476
0.75 114.0 0.0372 0.1711
0.75 126.0 -0.1901 0.2555
0.75 210.0 -0.3419 0.2422
0.75 222.0 -0.0972 0.2081
0.75 234.0 0.0413 0.1652
0.85 90.0 0.1785 0.24
0.85 222.0 -0.2194 0.2069
0.85 234.0 0.0073 0.2279
0.85 246.0 0.0667 0.2608
0.95 234.0 0.1542 0.2415
0.95 246.0 -0.1714 0.239
0.75 282.0 -0.0213 0.2325
0.75 294.0 0.0967 0.2476
0.85 90.0 0.0302 0.2609
0.85 198.0 0.4937 0.2377
0.85 222.0 0.0554 0.2064
0.85 234.0 0.3126 0.2085
0.85 246.0 -0.3708 0.2111
0.95 246.0 -0.2043 0.2343
0.95 258.0 0.0451 0.2459