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Measurement E151M2530

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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 : 0.0101 GeV2
W : 1325 GeV
ε : 0.84
Ebeam : 1.0539 GeV
εL: 0.0381 

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 42 -0.1343 0.2039 0.0301
0.35 54 0.2625 0.217 0.0305
0.45 42 0.2394 0.1981 0.0304
0.45 54 -0.1118 0.2297 0.0301
0.55 30 -0.0441 0.2161 0.03
0.55 42 -0.0226 0.1554 0.03
0.55 54 0.2685 0.171 0.0305
0.55 138 0.2044 0.2592 0.0303
0.55 150 -0.3742 0.2131 0.0309
0.55 234 0.3097 0.1768 0.0306
0.55 246 0.2661 0.1847 0.0305
0.55 258 -0.3673 0.1693 0.0309
0.55 270 -0.0907 0.2658 0.0301
0.65 42 -0.1937 0.2273 0.0302
0.65 54 0.233 0.2033 0.0304
0.65 150 -0.0589 0.2166 0.03
0.65 162 -0.5656 0.191 0.0321
0.65 198 -0.0634 0.2682 0.03
0.65 222 0.1929 0.1992 0.0302
0.65 234 0.1855 0.1543 0.0302
0.65 246 0.1214 0.1449 0.0301
0.65 258 -0.2458 0.1687 0.0304
0.75 150 -0.0892 0.2421 0.0301
0.75 162 -0.1075 0.1916 0.0301
0.75 174 -0.3316 0.2551 0.0307
0.75 210 -0.1458 0.2306 0.0301
0.75 222 0.1804 0.2092 0.0302
0.75 234 0.1986 0.1652 0.0303
0.75 246 0.0581 0.147 0.03
0.75 258 0.007 0.1732 0.03
0.85 222 -0.3088 0.1708 0.0306
0.85 234 0.0514 0.1756 0.03
0.85 246 -0.1137 0.1638 0.0301
0.85 258 0.0517 0.1633 0.03