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Measurement E151M80

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

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).

No publications available for this experiment

Quantity measured: AUL,
Target spin asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none

Q2 : 0.1715 GeV2
W : 1295 GeV
ε : 0.7055
Ebeam : 1.0539 GeV
εL: 0.4546 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): AUL,
Plot measurement data

Parameter (X axis): φ(π+), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θπ+) φ(π+),
degrees 		AUL Data errors Systematic errors
0.45 270 1.3027 0.6297 0.1512
0.55 258 0.1364 0.6819 0.0338
0.55 270 0.3666 0.7057 0.0514
0.55 282 0.0579 0.6568 0.0307
0.65 246 -0.254 0.6422 0.0417
0.65 258 0.1083 0.6128 0.0324
0.65 270 -0.4632 0.5551 0.0606
0.65 282 -0.0767 0.595 0.0312
0.75 126 -0.7031 0.7034 0.0854
0.75 138 0.4187 0.7535 0.0563
0.75 246 -1.1322 0.5502 0.1323
0.75 258 -1.1102 0.4595 0.1298
0.75 270 0.5476 0.71 0.0691
0.75 282 -0.2963 0.5865 0.0451
0.85 114 0.0112 0.6836 0.03
0.85 126 0.4948 0.5632 0.0638
0.85 138 -0.23 0.6764 0.0398
0.85 150 -0.7617 0.5486 0.0917
0.85 162 -0.5002 0.6375 0.0643
0.85 246 -0.2552 0.6087 0.0417
0.85 258 -0.705 0.5133 0.0856
0.85 270 0.2387 0.5109 0.0405
0.85 282 -0.0828 0.5574 0.0314
0.85 294 0.1632 0.5961 0.0353
0.95 126 1.2801 0.6473 0.1487
0.95 138 -0.2585 0.5079 0.042
0.95 150 -0.5305 0.5261 0.0674
0.95 174 0.3255 0.6085 0.0477
0.95 186 0.3703 0.608 0.0517
0.95 198 -0.4378 0.5364 0.0581
0.95 258 -1.1834 0.3927 0.1379