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Measurement E151M2552

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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 : 0.0121 GeV2
W : 1355 GeV
ε : 0.8024
Ebeam : 1.0539 GeV
εL: 0.0364 

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 0.1147 0.2558 0.0301
0.35 42 0.3548 0.1743 0.0308
0.35 54 -0.0922 0.1805 0.0301
0.45 30 0.0981 0.2512 0.0301
0.45 42 -0.3346 0.1777 0.0307
0.45 54 -0.2911 0.1643 0.0306
0.45 66 0.0512 0.2501 0.03
0.55 18 0.171 0.2409 0.0302
0.55 30 -0.042 0.1533 0.03
0.55 42 0.2034 0.1447 0.0303
0.55 54 0.0562 0.1788 0.03
0.55 66 0.1305 0.2872 0.0301
0.55 210 -0.1412 0.2408 0.0301
0.55 222 -0.0095 0.2228 0.03
0.55 234 -0.1234 0.1492 0.0301
0.55 246 0.1007 0.1942 0.0301
0.55 258 0.3073 0.1845 0.0306
0.65 42 -0.1008 0.1918 0.0301
0.65 54 0.2942 0.166 0.0306
0.65 138 -0.1708 0.2007 0.0302
0.65 150 0.0763 0.1901 0.03
0.65 162 0.1142 0.2086 0.0301
0.65 174 0.149 0.1985 0.0301
0.65 198 0.1865 0.2525 0.0302
0.65 210 -0.4893 0.1717 0.0316
0.65 222 -0.1699 0.1543 0.0302
0.65 234 -0.3192 0.1457 0.0307
0.65 246 0.0958 0.1352 0.0301
0.65 258 -0.2117 0.1828 0.0303
0.75 138 -0.1009 0.231 0.0301
0.75 150 -0.2773 0.2234 0.0305
0.75 162 -0.01 0.2174 0.03
0.75 174 -0.068 0.2403 0.03
0.75 210 -0.1481 0.2008 0.0301
0.75 222 -0.0781 0.1755 0.03
0.75 234 -0.1859 0.1523 0.0302
0.75 246 0.3084 0.14 0.0306
0.75 258 0.1112 0.1875 0.0301
0.85 210 0.2478 0.2538 0.0304
0.85 222 -0.233 0.1799 0.0304
0.85 234 0.0386 0.1585 0.03
0.85 246 -0.2867 0.1634 0.0305
0.85 258 0.0225 0.2023 0.03