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Measurement E151M2646

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: 0.2713
Q2: 0.0291 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9537

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 270.0 0.2418 0.2633 0.0304
0.55 282.0 -0.3733 0.2762 0.0309
0.65 246.0 0.3898 0.3438 0.031
0.65 258.0 0.3306 0.2268 0.0307
0.65 270.0 -0.0814 0.2517 0.03
0.65 282.0 0.2914 0.3713 0.0306
0.75 150.0 0.6543 0.2958 0.0327
0.75 246.0 0.4738 0.2547 0.0315
0.75 258.0 0.0366 0.3059 0.03
0.75 270.0 0.3819 0.3255 0.031
0.85 138.0 0.3217 0.2988 0.0307
0.85 150.0 -0.0524 0.2891 0.03
0.85 162.0 0.0822 0.2471 0.03
0.85 174.0 0.2971 0.2726 0.0306
0.85 186.0 0.2178 0.3097 0.0303
0.85 198.0 0.1285 0.296 0.0301
0.85 234.0 0.265 0.4084 0.0305
0.45 282.0 0.0959 0.2484 0.0301
0.55 258.0 -0.1887 0.2711 0.0302
0.55 270.0 0.3127 0.2528 0.0306
0.55 282.0 0.0459 0.198 0.03
0.65 246.0 -0.1265 0.2527 0.0301
0.65 258.0 -0.0985 0.2021 0.0301
0.65 270.0 0.0285 0.2046 0.03
0.75 150.0 -0.2176 0.283 0.0303
0.75 234.0 -0.2345 0.2518 0.0304
0.75 246.0 -0.296 0.2674 0.0306
0.75 258.0 0.1821 0.1997 0.0302
0.75 270.0 -0.1956 0.2254 0.0303
0.85 138.0 0.0154 0.2333 0.03
0.85 150.0 0.3339 0.1926 0.0307
0.85 162.0 0.2396 0.1869 0.0304
0.85 174.0 -0.2817 0.1718 0.0305
0.85 186.0 0.0894 0.2121 0.0301
0.85 198.0 0.1512 0.208 0.0302
0.85 210.0 -0.6217 0.2323 0.0325
0.85 222.0 -0.0172 0.2491 0.03
0.85 246.0 -0.3491 0.268 0.0308
Created in SINP MSU, CLAS Collaboration