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Measurement E151M2557

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

Q2 : 0.0291 GeV2
W : 1355 GeV
ε : 0.7833
Ebeam : 1.0539 GeV
εL: 0.0829 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): ALU,
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 		ALU Stat. error Syst. error
0.25 42 0.2036 0.1781 0.0303
0.25 54 -0.1524 0.228 0.0302
0.35 30 -0.1704 0.1831 0.0302
0.35 42 0.0295 0.1698 0.03
0.35 54 0.2468 0.1898 0.0304
0.45 30 -0.2392 0.1952 0.0304
0.45 42 -0.258 0.1454 0.0304
0.45 54 0.1698 0.1776 0.0302
0.45 258 -0.1005 0.2418 0.0301
0.55 30 0.5443 0.1774 0.0319
0.55 42 -0.1203 0.1541 0.0301
0.55 54 0.0407 0.1547 0.03
0.55 222 -0.3201 0.2464 0.0307
0.55 234 0.0461 0.1757 0.03
0.55 246 0.1286 0.1723 0.0301
0.55 258 0.1123 0.182 0.0301
0.55 270 -0.3362 0.2269 0.0307
0.65 138 0.185 0.1985 0.0302
0.65 150 -0.05 0.2125 0.03
0.65 162 0.3595 0.1964 0.0308
0.65 174 0.3724 0.2365 0.0309
0.65 222 -0.0978 0.1806 0.0301
0.65 234 0.1072 0.1629 0.0301
0.65 246 0.24 0.1548 0.0304
0.65 258 -0.0985 0.1466 0.0301
0.65 270 0.2294 0.1756 0.0303
0.75 126 0.3277 0.2346 0.0307
0.75 138 0.0713 0.1854 0.03
0.75 150 0.1068 0.1945 0.0301
0.75 162 -0.001 0.1677 0.03
0.75 174 -0.2067 0.2083 0.0303
0.75 222 -0.0528 0.184 0.03
0.75 234 -0.0057 0.1679 0.03
0.75 246 -0.001 0.147 0.03
0.75 258 -0.059 0.1368 0.03
0.75 270 -0.0228 0.201 0.03
0.85 150 -0.3717 0.2132 0.0309
0.85 222 -0.0243 0.1802 0.03
0.85 234 0.0717 0.1473 0.03
0.85 246 0.0151 0.1643 0.03
0.85 258 -0.0692 0.1461 0.03
0.85 270 -0.0035 0.1525 0.03
0.95 246 -0.0423 0.2441 0.03