CLAS Physics Database

Measurement E151M3284

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: 0.3175
Q2: 0.2445 GeV2
W: 1475.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8743

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.75 90.0 0.4151 0.2301
0.75 102.0 0.2349 0.2168
0.75 126.0 -0.1291 0.2627
0.75 234.0 -0.24 0.2489
0.75 258.0 -0.1006 0.2324
0.85 258.0 -0.2259 0.2542
0.85 270.0 -0.343 0.2234
0.95 270.0 0.1874 0.2587
0.95 282.0 0.2169 0.26
0.95 294.0 -0.3533 0.2084
0.65 102.0 0.0817 0.2502
0.75 114.0 -0.0216 0.2193
0.75 234.0 0.1854 0.2146
0.85 126.0 0.068 0.2454
0.85 234.0 -0.5281 0.2433
0.85 246.0 0.0694 0.1986
0.85 258.0 -0.0551 0.2445
0.85 270.0 -0.0725 0.2472
0.95 270.0 -0.1384 0.2505