CLAS Physics Database

Measurement E151M2461

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: 0.8137
Q2: 0.1435 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8234

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.45 282.0 -0.0024 0.2088 0.03
0.55 282.0 -0.0662 0.2225 0.03
0.65 282.0 0.2683 0.2447 0.0305
0.95 162.0 -0.0791 0.2319 0.03