CLAS Physics Database

Measurement E151M2506

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: 0.0337
Q2: 0.0071 GeV2
W: 1295.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8735

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 234.0 -0.4063 0.2332
0.55 246.0 -0.3739 0.2222
0.55 258.0 0.1031 0.2355
0.65 222.0 0.1373 0.2482
0.65 234.0 0.0455 0.1913
0.65 246.0 0.0454 0.1998
0.65 258.0 0.0001 0.2057
0.75 162.0 0.3877 0.2275
0.75 234.0 -0.1863 0.2114
0.75 246.0 0.0231 0.2107
0.75 258.0 -0.3592 0.2197
0.85 222.0 -0.5575 0.2153
0.85 234.0 -0.137 0.2271
0.85 246.0 -0.1314 0.2422
0.85 258.0 0.1163 0.2079