CLAS Physics Database

Measurement E151M3632

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: 0.0598
Q2: 0.1435 GeV2
W: 1835.0 GeV
Ebeam: 2.999 GeV
ε: 0.8185

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 270.0 -0.0833 0.2714 0.03
0.85 102.0 -0.1027 0.228 0.0301
0.85 114.0 -0.3742 0.221 0.0309
0.85 126.0 -0.1116 0.2788 0.0301
0.85 174.0 -0.2876 0.2354 0.0305
0.85 186.0 -0.7646 0.1892 0.0337
0.85 198.0 0.3935 0.2218 0.031
0.85 210.0 0.1813 0.2414 0.0302
0.85 222.0 -0.3599 0.2501 0.0309
0.85 234.0 -0.0582 0.2925 0.03