CLAS Physics Database

Measurement E151M3659

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: 0.0321
Q2: 0.101 GeV2
W: 1925.0 GeV
Ebeam: 2.999 GeV
ε: 0.7722

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 270.0 0.0598 0.2638 0.03
0.85 102.0 0.4145 0.2072 0.0311
0.85 114.0 0.0481 0.2476 0.03
0.85 126.0 -0.1889 0.2613 0.0302
0.85 186.0 0.2971 0.2612 0.0306
0.85 198.0 -0.0097 0.2734 0.03