CLAS Physics Database

Measurement E151M3629

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: 0.0374
Q2: 0.0844 GeV2
W: 1835.0 GeV
Ebeam: 2.999 GeV
ε: 0.8322

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 270.0 0.1047 0.2583 0.0301
0.75 90.0 0.111 0.2613 0.0301
0.75 102.0 0.2076 0.2538 0.0303
0.75 114.0 -0.2102 0.2283 0.0303
0.75 186.0 0.4423 0.2175 0.0313
0.75 198.0 0.0148 0.2295 0.03
0.75 210.0 -0.0922 0.2316 0.0301
0.75 258.0 -0.1745 0.2464 0.0302
0.75 270.0 -0.2095 0.2543 0.0303
0.75 282.0 0.4478 0.2603 0.0313
0.85 102.0 0.0636 0.2198 0.03
0.85 114.0 0.0423 0.2233 0.03
0.85 126.0 -0.1815 0.229 0.0302
0.85 174.0 0.1966 0.2445 0.0303
0.85 186.0 -0.0103 0.2072 0.03
0.85 198.0 0.2555 0.191 0.0304
0.85 210.0 0.0349 0.1923 0.03
0.85 222.0 -0.1008 0.2376 0.0301
0.85 270.0 -0.2733 0.2625 0.0305