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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
0.55 270.0 0.2418 0.2633
0.55 282.0 -0.3733 0.2762
0.65 246.0 0.3898 0.3438
0.65 258.0 0.3306 0.2268
0.65 270.0 -0.0814 0.2517
0.65 282.0 0.2914 0.3713
0.75 150.0 0.6543 0.2958
0.75 246.0 0.4738 0.2547
0.75 258.0 0.0366 0.3059
0.75 270.0 0.3819 0.3255
0.85 138.0 0.3217 0.2988
0.85 150.0 -0.0524 0.2891
0.85 162.0 0.0822 0.2471
0.85 174.0 0.2971 0.2726
0.85 186.0 0.2178 0.3097
0.85 198.0 0.1285 0.296
0.85 234.0 0.265 0.4084
0.45 282.0 0.0959 0.2484
0.55 258.0 -0.1887 0.2711
0.55 270.0 0.3127 0.2528
0.55 282.0 0.0459 0.198
0.65 246.0 -0.1265 0.2527
0.65 258.0 -0.0985 0.2021
0.65 270.0 0.0285 0.2046
0.75 150.0 -0.2176 0.283
0.75 234.0 -0.2345 0.2518
0.75 246.0 -0.296 0.2674
0.75 258.0 0.1821 0.1997
0.75 270.0 -0.1956 0.2254
0.85 138.0 0.0154 0.2333
0.85 150.0 0.3339 0.1926
0.85 162.0 0.2396 0.1869
0.85 174.0 -0.2817 0.1718
0.85 186.0 0.0894 0.2121
0.85 198.0 0.1512 0.208
0.85 210.0 -0.6217 0.2323
0.85 222.0 -0.0172 0.2491
0.85 246.0 -0.3491 0.268
Created in SINP MSU, CLAS Collaboration