CLAS Physics Database

Measurement E151M2872

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: 0.0298
Q2: 0.0348 GeV2
W: 1565.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6254

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 138.0 -0.0984 0.2625 0.0301
0.55 246.0 -0.0743 0.2695 0.03
0.65 222.0 -0.2553 0.2665 0.0304
0.65 234.0 0.2839 0.2327 0.0305
0.65 246.0 0.132 0.26 0.0301
0.75 162.0 -0.2272 0.2679 0.0303
0.75 210.0 -0.438 0.2679 0.0313
0.75 222.0 -0.0614 0.2442 0.03
0.75 234.0 0.0956 0.2506 0.0301
0.85 138.0 0.7325 0.2346 0.0334
0.85 222.0 0.2705 0.2244 0.0305
0.85 234.0 -0.0917 0.2726 0.0301
0.85 246.0 0.2547 0.2439 0.0304
0.35 42.0 -0.0127 0.3926 0.03
0.45 222.0 -0.1742 0.3768 0.0302
0.55 222.0 0.6374 0.2159 0.0326
0.55 234.0 -0.2486 0.335 0.0304
0.65 138.0 -0.2706 0.3495 0.0305
0.65 150.0 -0.0379 0.4244 0.03
0.65 210.0 -0.1946 0.2901 0.0303
0.65 222.0 0.2751 0.3477 0.0305
0.65 234.0 0.0349 0.3925 0.03
0.65 246.0 -0.5906 0.2288 0.0322
0.75 222.0 -0.0343 0.3418 0.03
0.75 234.0 -0.3234 0.3263 0.0307
0.75 246.0 0.1187 0.4963 0.0301
0.85 150.0 0.1321 0.4335 0.0301
0.85 210.0 -0.0853 0.4011 0.03
0.85 222.0 0.3951 0.284 0.031
0.85 234.0 0.4073 0.3537 0.0311
0.85 246.0 -0.023 0.4243 0.03