CLAS Physics Database

Measurement E151M3622

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: 0.0889
Q2: 0.205 GeV2
W: 1805.0 GeV
Ebeam: 2.999 GeV
ε: 0.8211

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.85 78.0 0.0298 0.2827 0.03
0.85 90.0 -0.2051 0.2415 0.0303
0.85 102.0 -0.1001 0.2219 0.0301
0.85 114.0 -0.0544 0.2611 0.03
0.85 186.0 0.1025 0.249 0.0301
0.85 198.0 -0.1845 0.2475 0.0302
0.85 210.0 -0.2446 0.2024 0.0304
0.85 222.0 -0.0111 0.2267 0.03
0.85 234.0 -0.3198 0.2482 0.0307
0.95 186.0 0.1658 0.2786 0.0302
0.95 210.0 0.262 0.2479 0.0305
0.95 222.0 -0.1719 0.2489 0.0302
0.95 234.0 0.1957 0.2694 0.0303