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Measurement E151M620

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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 : 0.2915 GeV2
W : 1505 GeV
ε : 0.7946
Ebeam : 1.9889 GeV
εL: 0.2903 

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
0.45 282 1.4762 0.6888 0.0951
0.65 102 -0.7817 0.6099 0.0564
0.65 222 0.6225 0.7201 0.0485
0.65 234 -0.061 0.6207 0.0302
0.75 102 -0.2533 0.5903 0.0338
0.75 114 -0.3799 0.6575 0.0379
0.75 234 -0.3073 0.5785 0.0354
0.75 246 0.2553 0.6789 0.0338
0.75 258 -0.1199 0.5835 0.0309
0.85 114 -0.7997 0.5903 0.0574
0.85 234 0.5957 0.7038 0.0472
0.85 246 0.6558 0.6211 0.0501
0.85 270 0.7093 0.6157 0.0527
0.95 210 0.1508 0.6308 0.0314
0.95 258 1.1257 0.6521 0.0751
0.95 270 -0.0376 0.5635 0.0301
0.95 282 0.9657 0.5445 0.0662
0.95 294 -0.4138 0.5262 0.0393