CLAS Physics Database

Measurement E151M2867

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: 0.013
Q2: 0.0143 GeV2
W: 1565.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6446

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 30.0 -0.1937 0.3703
0.55 222.0 -0.3843 0.3199
0.55 234.0 -0.1406 0.3804
0.65 150.0 0.0396 0.3117
0.65 222.0 0.2369 0.3391
0.75 222.0 -0.0695 0.3192
0.75 234.0 0.0136 0.4206
0.85 138.0 0.6363 0.3005
0.85 222.0 -0.1244 0.3437
0.85 234.0 -0.0397 0.3402
0.45 30.0 0.0386 0.2769
0.55 42.0 0.3503 0.2692
0.55 210.0 -0.2623 0.2172
0.55 234.0 -0.0724 0.2807
0.65 138.0 0.512 0.2376
0.75 234.0 0.1448 0.2513