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Measurement E151M2922

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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 : 0.101 GeV2
W : 1235 GeV
ε : 0.9604
Ebeam : 1.9889 GeV
εL: 0.6139 

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 -0.1221 0.2594 0.0301
0.45 66 0.0234 0.2833 0.03
0.45 78 -0.0647 0.1782 0.03
0.45 282 0.2983 0.2514 0.0306
0.55 78 0.1574 0.1929 0.0302
0.55 270 -0.0001 0.2186 0.03
0.55 282 0.3524 0.1858 0.0308
0.65 258 -0.3341 0.2563 0.0307
0.65 270 -0.0085 0.1787 0.03
0.65 282 -0.2058 0.1934 0.0303
0.75 102 -0.0498 0.2845 0.03
0.75 114 0.5962 0.2077 0.0323
0.75 258 -0.2196 0.1924 0.0303
0.75 270 -0.3286 0.1736 0.0307
0.75 282 0.253 0.2643 0.0304
0.85 90 0.0141 0.2401 0.03
0.85 102 0.1979 0.1789 0.0303
0.85 114 -0.3141 0.1715 0.0307
0.85 126 -0.1717 0.1733 0.0302
0.85 138 0.1712 0.1998 0.0302
0.85 246 0.0542 0.2178 0.03
0.85 258 -0.1886 0.2217 0.0302
0.85 270 -0.1421 0.2218 0.0301
0.95 102 -0.436 0.186 0.0312
0.95 114 0.2089 0.1878 0.0303
0.95 126 -0.2276 0.2003 0.0303
0.95 138 0.2202 0.2265 0.0303
0.95 150 0.1569 0.1967 0.0302
0.95 162 0.161 0.2444 0.0302
0.95 174 0.0551 0.2377 0.03
0.95 186 -0.1974 0.2527 0.0303
0.95 198 0.2153 0.2633 0.0303
0.95 210 -0.6096 0.2176 0.0324
0.95 234 -0.2034 0.2774 0.0303