CLAS Physics Database

Measurement E151M3193

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: 0.9326
Q2: 0.2915 GeV2
W: 1265.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9291

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 270.0 0.7381 0.1799
0.75 90.0 0.0532 0.2255
0.75 270.0 -0.2067 0.2347
0.75 282.0 -0.1051 0.2593
0.75 294.0 -0.0271 0.2481
0.85 66.0 0.3822 0.2512
0.85 90.0 -0.2525 0.2227
0.85 282.0 0.1995 0.2539
0.95 282.0 -0.1594 0.2512
0.55 282.0 0.2156 0.2572
0.65 270.0 0.0421 0.2494
0.65 282.0 -0.4532 0.2393
0.75 270.0 -0.2271 0.2317
0.75 282.0 -0.3367 0.2455
0.85 66.0 0.0964 0.2571
0.85 90.0 -0.2532 0.2541
0.85 102.0 -0.0526 0.2599
0.85 294.0 -0.0947 0.2625
0.95 78.0 0.1194 0.2438