CLAS Physics Database

Measurement E151M2529

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: 0.0321
Q2: 0.0084 GeV2
W: 1325.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8418

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.45 42.0 -0.3431 0.2274 0.0308
0.45 54.0 0.5064 0.1896 0.0317
0.55 42.0 0.3489 0.2064 0.0308
0.55 54.0 -0.0125 0.2459 0.03
0.55 222.0 0.1987 0.2327 0.0303
0.55 234.0 0.0798 0.1959 0.03
0.55 246.0 -0.1425 0.1913 0.0301
0.55 258.0 0.498 0.1847 0.0316
0.65 42.0 -0.1642 0.237 0.0302
0.65 210.0 -0.0036 0.2464 0.03
0.65 222.0 0.1763 0.2293 0.0302
0.65 234.0 -0.3169 0.147 0.0307
0.65 246.0 -0.1948 0.1705 0.0303
0.65 258.0 -0.0816 0.1865 0.03
0.75 150.0 0.3044 0.2292 0.0306
0.75 174.0 0.0551 0.2502 0.03
0.75 222.0 0.0935 0.2047 0.0301
0.75 234.0 -0.0891 0.167 0.0301
0.75 246.0 -0.3046 0.1702 0.0306
0.75 258.0 0.1854 0.1992 0.0302
0.85 222.0 -0.1428 0.2255 0.0301
0.85 234.0 -0.2206 0.2064 0.0303
0.85 246.0 -0.102 0.1903 0.0301
0.85 258.0 -0.0377 0.234 0.03