CLAS Physics Database

Measurement E151M3551

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: 0.3108
Q2: 0.5925 GeV2
W: 1625.0 GeV
Ebeam: 2.999 GeV
ε: 0.8246

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.75 102.0 -0.3151 0.2567
0.75 234.0 0.3468 0.2644
0.85 54.0 0.3533 0.251
0.85 222.0 -0.1117 0.2252
0.85 234.0 -0.4376 0.2556
0.85 246.0 0.0579 0.2524
0.85 258.0 0.4104 0.233
0.85 270.0 0.5167 0.2194
0.85 282.0 -0.1964 0.2449
0.95 270.0 0.2585 0.2636
0.95 282.0 -0.7284 0.1798
0.95 294.0 -0.0501 0.2686
0.95 306.0 -0.1956 0.2866
0.95 318.0 -0.2283 0.2464