CLAS Physics Database

Measurement E151M2845

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: 0.1491
Q2: 0.1715 GeV2
W: 1505.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5978

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 234.0 0.4169 0.2935 0.0311
0.65 222.0 -0.4644 0.2656 0.0314
0.65 234.0 0.879 0.1435 0.0348
0.65 246.0 -0.608 0.208 0.0324
0.75 222.0 -0.1884 0.4157 0.0302
0.75 258.0 0.1529 0.3905 0.0302
0.85 222.0 -0.49 0.3 0.0316
0.85 246.0 -0.111 0.3631 0.0301
0.85 258.0 -0.5582 0.25 0.032
0.85 270.0 -0.0224 0.3494 0.03
0.95 246.0 -0.1743 0.4 0.0302
0.95 270.0 -0.2381 0.3812 0.0304
0.55 246.0 -0.0757 0.2677 0.03
0.65 126.0 -0.1913 0.2736 0.0302
0.65 222.0 0.2138 0.2407 0.0303
0.65 234.0 0.2648 0.2507 0.0305
0.75 234.0 -0.1804 0.2437 0.0302
0.75 246.0 -0.2886 0.2801 0.0306
0.75 258.0 -0.5798 0.2357 0.0322
0.85 234.0 0.3218 0.2589 0.0307
0.85 246.0 -0.1257 0.2402 0.0301
0.85 258.0 0.0652 0.2552 0.03