CLAS Physics Database

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Measurement E151M1533

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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 :	0.0143 GeV²
W :	1385 GeV
ε :	0.8632
E_beam :	1.3383 GeV
ε_L:	0.0394

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
0.35	42	1.0138	0.6544	0.0778
0.55	42	-0.788	0.7582	0.056
0.55	126	-0.6407	0.8352	0.0487
0.55	222	0.1387	0.8357	0.0311
0.55	234	-0.8343	0.7392	0.0583
0.55	246	0.8499	0.7298	0.0591
0.65	42	1.0313	0.8569	0.0687
0.65	126	-1.0505	0.9064	0.0697
0.65	138	-0.4581	0.7594	0.0407
0.65	150	-0.0108	0.7535	0.03
0.65	162	0.2405	0.8966	0.0333
0.65	210	-0.8747	0.8051	0.0604
0.65	222	0.663	0.7397	0.0498
0.65	234	-0.1375	0.5512	0.0311
0.65	246	0.3211	0.6649	0.0356
0.75	138	-0.3157	0.8388	0.0355
0.75	150	-1.1564	0.745	0.0755
0.75	210	-0.4167	0.6546	0.039
0.75	222	-1.4938	0.587	0.0944
0.75	234	0.0116	0.5898	0.03
0.75	246	-0.4143	0.6719	0.0389
0.75	258	0.1988	0.6462	0.0323
0.85	210	-1.3178	0.7864	0.0845
0.85	222	-0.9921	0.6226	0.0666
0.85	234	-0.7734	0.5584	0.0552
0.85	246	-0.7447	0.6334	0.0538
0.45	42	-1.416	0.835	0.0876
0.55	42	0.1366	0.8791	0.031
0.55	222	-0.4542	0.8905	0.04
0.55	234	2.1219	0.5526	0.127
0.55	246	-1.0293	0.8	0.067
0.65	126	0.4218	1.1347	0.0387
0.65	138	0.3027	1.0525	0.0348
0.65	210	-0.6089	0.9789	0.0464
0.65	222	1.1103	0.8332	0.0712
0.65	234	-1.0931	0.604	0.0703
0.65	246	-0.3122	0.8535	0.0351
0.75	138	-0.3793	1.1857	0.0372
0.75	150	-0.1683	1.0873	0.0316
0.75	210	-0.6246	1.1149	0.0471
0.75	222	-0.6445	0.9424	0.048
0.75	234	1.1893	0.7127	0.0754
0.75	246	0.9402	0.7025	0.0624
0.75	258	1.3312	0.8774	0.083
0.85	210	0.2146	0.9902	0.0325
0.85	222	1.7882	0.5225	0.1082
0.85	234	-0.8806	0.6934	0.0593
0.85	246	-0.8515	0.7753	0.0579