CLAS Physics Database

Measurement E151M2659

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: 0.1105
Q2: 0.0143 GeV2
W: 1235.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9503

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 258.0 -0.4434 0.2011
0.75 174.0 -0.1049 0.2654
0.75 234.0 0.1169 0.2739
0.75 246.0 0.3166 0.2657
0.75 258.0 -0.1666 0.2298
0.85 162.0 0.0758 0.2704
0.55 258.0 0.479 0.3279
0.55 270.0 0.1817 0.3669
0.65 246.0 -0.0373 0.3812
0.65 258.0 0.1291 0.3559
0.75 174.0 0.4725 0.2826
0.75 258.0 -0.0719 0.3526
0.75 270.0 -0.2038 0.3205