CLAS Physics Database

Measurement E151M3157

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: 0.0283
Q2: 0.0496 GeV2
W: 1715.0 GeV
Ebeam: 1.9889 GeV
ε: 0.722

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 78.0 -0.2319 0.2534 0.0304
0.35 282.0 0.2382 0.277 0.0304
0.65 198.0 0.1543 0.2583 0.0302
0.65 282.0 0.2455 0.265 0.0304
0.75 66.0 0.1047 0.2297 0.0301
0.75 210.0 0.2562 0.2242 0.0304
0.75 270.0 -0.2728 0.2159 0.0305
0.75 282.0 -0.3638 0.2475 0.0309
0.85 114.0 0.2333 0.2195 0.0304
0.85 126.0 0.2619 0.2704 0.0305
0.85 198.0 0.2763 0.2443 0.0305
0.85 222.0 -0.2854 0.2293 0.0305