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Measurement E151M3127

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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 : 1655 GeV
ε : 0.7891
Ebeam : 1.9889 GeV
εL: 0.0227 

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 0.255 0.228 0.0304
0.35 282 -0.2346 0.2691 0.0304
0.45 18 -0.0432 0.2828 0.03
0.45 258 -0.2874 0.221 0.0305
0.45 270 -0.4416 0.2195 0.0313
0.45 282 -0.0484 0.2748 0.03
0.55 78 0.2896 0.255 0.0306
0.55 126 -0.1895 0.2232 0.0302
0.55 210 0.4773 0.2318 0.0315
0.55 258 -0.1907 0.2631 0.0302
0.55 270 0.1282 0.2306 0.0301
0.55 282 0.1921 0.2633 0.0302
0.65 126 -0.4355 0.2319 0.0312
0.65 138 -0.0492 0.2543 0.03
0.65 150 -0.634 0.2199 0.0326
0.65 210 0.133 0.2613 0.0301
0.65 222 0.2319 0.2565 0.0304
0.65 294 0.3987 0.2444 0.031
0.75 66 0.6252 0.1927 0.0325
0.75 126 0.021 0.264 0.03
0.75 210 -0.2658 0.2568 0.0305
0.75 222 0.028 0.233 0.03
0.75 234 0.1366 0.237 0.0301
0.75 258 -0.1814 0.2456 0.0302
0.75 270 -0.0674 0.2009 0.03
0.75 282 0.27 0.2417 0.0305
0.85 114 0.3978 0.2069 0.031
0.85 126 -0.1332 0.2187 0.0301
0.85 198 0.0755 0.2845 0.03
0.85 210 -0.2658 0.205 0.0305
0.85 222 0.1365 0.2436 0.0301
0.85 234 0.1528 0.2596 0.0302
0.85 258 0.2931 0.2607 0.0306