CLAS Physics Database

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Measurement E151M1621

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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 :	0.1205 GeV²
W :	1505 GeV
ε :	0.6429
E_beam :	1.3383 GeV
ε_L:	0.1204

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	222	-0.9061	0.9058	0.062
0.65	126	1.3265	0.8959	0.085
0.65	138	-1.415	0.7432	0.09
0.65	222	-0.5432	0.763	0.0443
0.65	234	-0.5172	0.7736	0.0431
0.65	246	-1.1788	0.5796	0.0768
0.75	126	-0.2401	0.665	0.0333
0.75	138	1.1949	0.77	0.0776
0.75	222	0.7457	0.6138	0.0538
0.75	246	0.5362	0.8055	0.044
0.85	234	-0.3654	0.6288	0.0371
0.85	246	-0.3819	0.6551	0.0377
0.85	258	-0.338	0.7718	0.0362
0.95	270	0.3846	0.6982	0.0378
0.55	234	-1.7678	0.5755	0.1071
0.65	210	0.2301	1.0208	0.0328
0.65	222	-0.1385	1.0792	0.0311
0.65	234	0.4065	0.9068	0.0382
0.65	246	-1.3437	0.7987	0.0837
0.75	138	0.4478	1.0087	0.0397
0.75	258	0.1277	0.9314	0.0309
0.85	222	-1.6027	0.5332	0.0979
0.85	234	-0.4492	0.9007	0.0398
0.85	246	1.9031	0.5825	0.1147
0.85	258	1.9073	0.5048	0.1149
0.95	246	1.0419	0.9135	0.0676
0.95	270	-0.3142	0.8824	0.0351