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Measurement E151M2926

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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 : 0.205 GeV2
W : 1235 GeV
ε : 0.9361
Ebeam : 1.9889 GeV
εL: 0.9358 

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 66 -0.0527 0.2788 0.03
0.35 66 0.3423 0.2029 0.0308
0.35 78 0.0701 0.2698 0.03
0.45 66 0.1176 0.2734 0.0301
0.45 78 -0.0486 0.269 0.03
0.45 282 -0.3497 0.2229 0.0308
0.45 294 -0.015 0.2819 0.03
0.55 270 0.1984 0.263 0.0303
0.55 282 -0.2131 0.2786 0.0303
0.55 294 -0.4554 0.2464 0.0314
0.65 270 -0.5073 0.2101 0.0317
0.65 282 0.3448 0.2133 0.0308
0.65 294 0.1279 0.2453 0.0301
0.75 90 0.0921 0.2863 0.0301
0.75 102 -0.4116 0.2367 0.0311
0.75 258 0.15 0.2684 0.0301
0.75 270 0.3532 0.2209 0.0308
0.75 282 -0.2057 0.2197 0.0303
0.75 294 -0.1297 0.2698 0.0301
0.85 78 0.1977 0.2145 0.0303
0.85 90 -0.2258 0.219 0.0303
0.85 102 -0.0301 0.2298 0.03
0.85 114 0.3638 0.2028 0.0309
0.85 258 -0.4241 0.2275 0.0312
0.85 270 0.4014 0.2057 0.0311
0.85 282 0.1506 0.2564 0.0302
0.95 66 0.1959 0.2312 0.0303
0.95 78 0.4439 0.2586 0.0313
0.95 90 -0.2707 0.2225 0.0305
0.95 102 0.06 0.2202 0.03
0.95 114 0.2132 0.2299 0.0303
0.95 126 -0.025 0.2783 0.03
0.95 138 -0.08 0.2756 0.03