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Measurement E151M2920

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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 : 0.0707 GeV2
W : 1235 GeV
ε : 0.9671
Ebeam : 1.9889 GeV
εL: 0.4706 

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
0.35 78 0.0722 0.2569 0.03
0.45 78 -0.0744 0.1983 0.03
0.55 78 0.1728 0.191 0.0302
0.55 90 -0.1926 0.1731 0.0302
0.55 270 0.0879 0.223 0.0301
0.55 282 0.1674 0.241 0.0302
0.65 78 0.6572 0.1759 0.0328
0.65 90 -0.3404 0.1945 0.0308
0.65 258 0.1121 0.1905 0.0301
0.65 270 -0.348 0.1556 0.0308
0.65 282 -0.3639 0.207 0.0309
0.75 90 0.0807 0.2619 0.03
0.75 102 0.1597 0.2779 0.0302
0.75 114 0.5964 0.1858 0.0323
0.75 126 -0.1681 0.2783 0.0302
0.75 246 0.4052 0.2139 0.0311
0.75 258 -0.0636 0.1701 0.03
0.75 270 -0.1438 0.1601 0.0301
0.85 102 -0.1282 0.2377 0.0301
0.85 114 0.1972 0.1767 0.0303
0.85 126 -0.0202 0.1658 0.03
0.85 138 0.2585 0.1532 0.0304
0.85 150 0.0037 0.2024 0.03
0.85 162 0.083 0.2157 0.03
0.85 174 -0.0751 0.2422 0.03
0.85 210 0.2315 0.2565 0.0304
0.85 222 -0.5075 0.2659 0.0317
0.85 246 0.0498 0.2071 0.03
0.85 258 -0.2714 0.1798 0.0305
0.85 270 0.1726 0.2592 0.0302
0.95 114 0.05 0.2488 0.03
0.95 126 0.0367 0.1984 0.03
0.95 138 0.111 0.2175 0.0301
0.95 150 -0.0005 0.177 0.03
0.95 162 -0.2106 0.1735 0.0303
0.95 174 -0.0531 0.2342 0.03
0.95 186 0.1031 0.2102 0.0301
0.95 198 -0.1408 0.2314 0.0301
0.95 210 -0.2548 0.2682 0.0304
0.95 234 -0.0271 0.2724 0.03