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Measurement E151M2854

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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 : 0.0348 GeV2
W : 1535 GeV
ε : 0.6738
Ebeam : 1.3383 GeV
εL: 0.0362 

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
0.45 18 0.1745 0.2721 0.0302
0.45 30 -0.36 0.2695 0.0309
0.45 42 0.6829 0.2141 0.033
0.55 138 0.0629 0.2438 0.03
0.55 150 -0.3061 0.2487 0.0306
0.55 222 -0.1689 0.2576 0.0302
0.55 234 0.0974 0.2448 0.0301
0.55 246 -0.0799 0.2871 0.03
0.65 138 0.2128 0.2229 0.0303
0.65 150 -0.006 0.2434 0.03
0.65 210 0.0648 0.2287 0.03
0.65 222 0.0412 0.2322 0.03
0.65 234 0.0746 0.2218 0.03
0.75 150 0.0569 0.2468 0.03
0.75 162 -0.5098 0.2589 0.0317
0.75 222 0.28 0.2313 0.0305
0.75 234 0.1402 0.212 0.0301
0.75 246 0.0079 0.2125 0.03
0.85 222 -0.4846 0.2074 0.0315
0.85 234 0.1651 0.2312 0.0302
0.85 246 -0.134 0.216 0.0301
0.35 42 0.2804 0.3275 0.0305
0.55 210 -0.1913 0.3654 0.0302
0.55 222 -0.3047 0.3643 0.0306
0.55 246 0.7001 0.262 0.0331
0.65 126 -0.1868 0.3544 0.0302
0.65 138 -0.4274 0.2873 0.0312
0.65 162 0.5123 0.2947 0.0317
0.65 222 -0.2642 0.2797 0.0305
0.65 234 -0.2186 0.2875 0.0303
0.65 246 -0.3905 0.2817 0.031
0.75 162 0.5957 0.2195 0.0323
0.75 210 -0.2493 0.3547 0.0304
0.75 222 0.5074 0.2376 0.0317
0.75 234 -0.0476 0.3089 0.03
0.75 246 0.1576 0.2945 0.0302
0.85 210 -0.2665 0.3754 0.0305
0.85 222 -0.1074 0.2992 0.0301
0.85 234 0.1889 0.3391 0.0302
0.85 246 0.3557 0.251 0.0308
0.85 258 -0.0496 0.3729 0.03