CLAS Physics Database

Measurement E151M2409

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: ALL
εL: 0.0514
Q2: 0.1205 GeV2
W: 1835.0 GeV
Ebeam: 2.999 GeV
ε: 0.8239

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.65 54.0 -2.8823 2.8823 0.2111
0.65 282.0 -0.4249 0.9712 0.043
0.75 102.0 1.8603 0.8118 0.1382
0.75 198.0 -0.4937 0.9442 0.0467
0.75 210.0 -0.7448 0.9785 0.0618
0.75 258.0 -0.9768 1.0166 0.0769
0.75 282.0 -0.0925 1.0056 0.0307
0.85 90.0 -0.2968 1.057 0.0369
0.85 102.0 0.0309 0.8617 0.0301
0.85 114.0 -0.095 0.9288 0.0308
0.85 126.0 0.339 1.1574 0.0388
0.85 186.0 0.0669 0.7883 0.0304
0.85 198.0 0.2086 0.8414 0.0336
0.85 210.0 -0.074 0.8402 0.0305
0.85 222.0 -0.3391 0.8924 0.0388
0.85 234.0 0.6704 1.0467 0.0571
0.95 210.0 -2.1452 0.8083 0.1584