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Measurement E151M736

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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: AUL,
Target spin asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none

Q2 : 0.1715 GeV2
W : 1235 GeV
ε : 0.9577
Ebeam : 2.2596 GeV
εL: 0.868 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): AUL,
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
AUL Stat. error Syst. error
0.55 78 -0.3074 0.4036 0.0362
0.55 270 -0.1426 0.4457 0.0314
0.55 282 -0.5858 0.3125 0.0524
0.65 282 -2.379 1.6787 0.2216
0.75 90 -3.1057 2.1892 0.2882
0.75 270 -0.6 2.039 0.063
0.75 282 0.7219 2.1234 0.0731
0.85 90 -0.1579 2.8785 0.0334
0.85 102 0.0852 2.4386 0.031
0.95 114 -3.423 7.782 0.3173
0.95 126 -0.2536 7.5535 0.0381
0.95 138 2.1322 8.5642 0.1991
0.55 294 0.0865 0.4302 0.0305
0.65 270 -0.1712 0.3771 0.032
0.65 282 0.4618 0.3994 0.0426
0.75 270 0.1035 0.4537 0.0308
0.75 282 0.494 0.4275 0.0442
0.85 90 -0.6515 0.3723 0.0522
0.85 102 -0.0149 0.4604 0.03
0.85 114 -0.5786 0.4409 0.0484
0.85 270 -0.1264 0.4811 0.0311
0.85 282 0.3625 0.5056 0.0383
0.95 90 0.0361 0.7568 0.0301
0.95 102 -0.2001 0.7033 0.0327
0.95 114 0.9011 0.7025 0.0663
0.95 126 -0.4263 0.7285 0.041