CLAS Physics Database

Measurement E151M3344

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: 0.0862
Q2: 0.101 GeV2
W: 1625.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8396

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 270.0 0.0793 0.2348
0.55 126.0 -0.5004 0.2222
0.75 234.0 0.1473 0.2352
0.75 246.0 0.445 0.2303
0.75 282.0 -0.1649 0.2173
0.75 294.0 0.1458 0.2508
0.85 102.0 0.1445 0.2335
0.85 222.0 -0.0994 0.2401
0.85 234.0 0.2487 0.2157
0.45 282.0 -0.0593 0.2496
0.65 114.0 0.3161 0.2554
0.65 138.0 0.0872 0.254
0.75 138.0 0.2468 0.2598
0.75 222.0 0.1405 0.2706
0.75 234.0 0.1552 0.2449
0.85 90.0 -0.1088 0.2359
0.85 102.0 -0.173 0.2575
0.85 222.0 -0.3259 0.222
0.85 234.0 0.249 0.2494