CLAS Physics Database

Measurement E151M3539

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: 0.3432
Q2: 0.5925 GeV2
W: 1595.0 GeV
Ebeam: 2.999 GeV
ε: 0.8372

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.85 54.0 0.3677 0.257
0.85 66.0 0.3224 0.2642
0.85 210.0 -0.1995 0.2564
0.85 222.0 -0.1014 0.2697
0.85 246.0 -0.1298 0.2616
0.85 258.0 -0.272 0.2425
0.85 270.0 -0.1397 0.2624
0.85 282.0 -0.6446 0.1729
0.85 294.0 0.0947 0.2863
0.95 270.0 -0.3917 0.2489
0.95 282.0 0.0486 0.2728
0.95 294.0 -0.1259 0.2815
0.95 306.0 0.0044 0.2467
0.95 318.0 0.0538 0.268