CLAS Physics Database

Measurement E151M2447

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: 0.1164
Q2: 0.0121 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.9348

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 258.0 0.2077 0.2298
0.55 270.0 0.2569 0.2295
0.65 246.0 -0.3372 0.1906
0.65 258.0 -0.0202 0.2098
0.65 270.0 -0.0957 0.244
0.75 186.0 -0.0284 0.2331
0.75 246.0 0.4419 0.2394
0.75 258.0 -0.3201 0.2306