CLAS Physics Database

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Measurement E151M1636

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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: A_LL,

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

Q² :	0.0707 GeV²
W :	1535 GeV
ε :	0.6413
E_beam :	1.3383 GeV
ε_L:	0.0668

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LL,
Plot measurement data

Parameter (X axis): φ(π⁺), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ_π⁺)	φ(π⁺), degrees	A_LL	Stat. error	Syst. error
0.55	138	-0.5243	0.9061	0.0434
0.55	210	-0.9894	1.2807	0.0649
0.55	222	-1.0861	0.6281	0.0868
0.55	234	-0.2525	0.7896	0.0559
0.55	246	-0.4104	0.6339	0.0397
0.65	138	0.5185	0.6116	0.0598
0.65	150	0.0235	0.636	0.0302
0.65	162	0.303	0.8528	0.0351
0.65	210	-0.9251	0.9442	0.0616
0.65	222	-0.8945	0.574	0.0612
0.65	234	-1.4545	0.4725	0.0909
0.65	246	0.6189	0.6378	0.0493
0.75	138	-1.3678	0.6982	0.0873
0.75	150	0.1686	0.9244	0.0317
0.75	162	0.9725	0.9145	0.0656
0.75	222	-0.7956	0.7047	0.0558
0.75	234	0.1461	0.6383	0.0337
0.75	246	-0.8034	0.5637	0.0569
0.85	222	0.687	0.8778	0.0509
0.85	234	-1.1903	0.7908	0.0774
0.85	246	-0.1214	0.8304	0.0309
0.95	114	-0.5788	0.8696	0.0459
0.95	126	-0.6716	0.8401	0.0502
0.95	234	1.5783	0.7404	0.0992
0.75	258	0.899	0.9474	0.0603
0.85	222	-0.7132	1.196	0.0512
0.85	234	-1.2649	0.719	0.0794
0.85	246	1.7508	0.6998	0.1061
0.85	258	-0.8988	1.1575	0.0603