CLAS Physics Database

Measurement E151M366

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: 0.0162
Q2: 0.0101 GeV2
W: 1475.0 GeV
Ebeam: 1.3383 GeV
ε: 0.7764

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 42.0 0.6089 0.65
0.55 162.0 0.1831 0.6981
0.55 222.0 1.2866 0.472
0.55 234.0 0.0433 0.456
0.65 126.0 0.4027 0.6994
0.65 138.0 -0.4412 0.6654
0.65 222.0 1.1823 0.5071
0.75 222.0 -0.3514 0.5404
0.75 234.0 0.469 0.6051
0.75 246.0 0.6367 0.5773
0.85 222.0 0.128 0.6443
0.85 234.0 1.4394 0.5652
0.65 234.0 0.0689 0.7964
0.75 210.0 -0.7642 0.6057
0.75 222.0 -0.5894 0.7489
0.75 234.0 0.0166 0.7923
0.85 210.0 1.9347 1.0977
0.85 222.0 0.8342 1.049
0.85 234.0 1.6319 1.1956