CLAS Physics Database

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Measurement E151M2840

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

Q² :	0.0707 GeV²
W :	1505 GeV
ε :	0.6863
E_beam :	1.3383 GeV
ε_L:	0.0807

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LU,
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_LU	Stat. error	Syst. error
0.55	126	-0.1741	0.2469	0.0302
0.55	138	0.5812	0.1651	0.0322
0.55	150	0.0714	0.2716	0.03
0.55	162	0.0459	0.2886	0.03
0.55	222	-0.4593	0.1982	0.0315
0.55	234	-0.0104	0.1747	0.0307
0.55	246	-0.2472	0.2116	0.0306
0.65	126	-0.0572	0.2407	0.03
0.65	138	-0.0689	0.2247	0.03
0.65	150	0.0608	0.2628	0.03
0.65	210	-0.2216	0.251	0.0303
0.65	222	-0.2358	0.241	0.0304
0.65	234	-0.0433	0.2069	0.03
0.65	246	0.0702	0.1914	0.03
0.65	258	-0.1411	0.2758	0.0301
0.75	126	0.0701	0.2241	0.03
0.75	138	0.4148	0.1887	0.0311
0.75	150	0.1678	0.2418	0.0302
0.75	210	0.1062	0.2621	0.0301
0.75	222	0.0453	0.2313	0.03
0.75	234	-0.2267	0.1837	0.0303
0.75	246	0.1697	0.1988	0.0302
0.75	258	-0.1227	0.2259	0.0301
0.85	150	0.3061	0.2646	0.0306
0.85	222	-0.2981	0.2389	0.0306
0.85	234	-0.3446	0.2483	0.0308
0.85	246	-0.0987	0.1883	0.0301
0.85	258	-0.0974	0.255	0.0301
0.95	126	-0.3555	0.2316	0.0308
0.95	138	-0.1673	0.268	0.0302
0.95	246	0.4667	0.2476	0.0314
0.55	258	0.0168	0.3714	0.03
0.65	138	0.1705	0.3853	0.0302
0.65	150	0.3703	0.2777	0.0309
0.65	210	-0.4394	0.2998	0.0313
0.65	222	-0.0354	0.2816	0.03
0.65	234	0.6206	0.2744	0.0325
0.65	246	0.2989	0.3405	0.0306
0.75	138	-0.5202	0.2507	0.0318
0.75	150	-0.2417	0.3718	0.0304
0.75	222	-0.3795	0.2523	0.0309
0.75	234	-0.3604	0.33	0.0309
0.75	246	-0.2903	0.2098	0.0306
0.75	258	-0.0795	0.3252	0.03
0.85	126	-0.599	0.3035	0.0323
0.85	222	0.0525	0.3549	0.03
0.85	234	0.2112	0.2567	0.0303
0.85	246	-0.0804	0.2828	0.03
0.85	258	0.5857	0.2822	0.0322
0.95	246	-0.5584	0.2866	0.032