CLAS Physics Database

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Measurement E151M2761

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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 :	0.0415 GeV²
W :	1385 GeV
ε :	0.8445
E_beam :	1.3383 GeV
ε_L:	0.1061

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
0.25	42	0.2675	0.2469	0.0305
0.35	18	0.1154	0.2808	0.0301
0.35	30	-0.4564	0.2531	0.0314
0.35	42	0.1506	0.282	0.0302
0.45	30	0.278	0.1976	0.0305
0.55	222	0.1664	0.2747	0.0302
0.55	234	0.1778	0.2355	0.0302
0.55	246	0.2882	0.2218	0.0305
0.55	258	-0.1456	0.2354	0.0301
0.65	126	0.0499	0.2212	0.03
0.65	138	0.2394	0.1876	0.0304
0.65	162	-0.0724	0.2611	0.03
0.65	222	-0.1349	0.2124	0.0301
0.65	234	0.0049	0.1876	0.03
0.65	246	-0.0327	0.1689	0.03
0.65	258	-0.2346	0.2002	0.0304
0.75	114	0.9183	0.1887	0.0352
0.75	126	-0.0885	0.2153	0.0301
0.75	138	0.2893	0.1899	0.0306
0.75	150	-0.116	0.2237	0.0301
0.75	162	0.1455	0.2449	0.0301
0.75	222	-0.2732	0.2026	0.0305
0.75	234	-0.1577	0.1857	0.0302
0.75	246	-0.3153	0.174	0.0307
0.75	258	-0.0776	0.1983	0.03
0.85	114	0.3211	0.2649	0.0307
0.85	126	0.2745	0.2621	0.0305
0.85	138	-0.3169	0.2175	0.0307
0.85	150	-0.1186	0.2098	0.0301
0.85	162	0.2584	0.259	0.0304
0.85	210	-0.0092	0.268	0.03
0.85	222	-0.3477	0.2323	0.0308
0.85	234	-0.1058	0.2024	0.0301
0.85	246	-0.2328	0.1789	0.0304
0.85	258	0.2905	0.1715	0.0306
0.85	270	-0.2508	0.2166	0.0304
0.95	114	0.384	0.2521	0.031
0.95	126	-0.2118	0.2475	0.0303
0.95	138	-0.0006	0.274	0.03
0.95	234	0.2636	0.2624	0.0305
0.95	246	0.0289	0.2553	0.03
0.95	258	-0.4203	0.2326	0.0312
0.15	42	-0.1064	0.362	0.0301
0.25	42	0.0771	0.3947	0.03
0.35	30	0.0029	0.3718	0.03
0.35	42	-0.4824	0.2564	0.0315
0.45	30	0.1741	0.2661	0.0302
0.45	42	-0.0389	0.3673	0.03
0.55	234	0.6972	0.2133	0.0331
0.55	246	-0.2236	0.3478	0.0303
0.55	258	-0.1898	0.3231	0.0302
0.65	126	0.53	0.2225	0.0318
0.65	138	-0.0301	0.3141	0.03
0.65	150	-0.1627	0.368	0.0302
0.65	222	-0.1162	0.2792	0.0301
0.65	234	0.1004	0.2587	0.0301
0.65	246	-0.0986	0.2488	0.0301
0.65	258	-0.0328	0.2638	0.03
0.75	114	-0.5466	0.2197	0.0319
0.75	126	0.0214	0.2882	0.03
0.75	138	-0.0117	0.3103	0.03
0.75	150	-0.5379	0.2175	0.0319
0.75	162	0.0323	0.3816	0.03
0.75	210	-0.4251	0.2796	0.0312
0.75	222	-0.0471	0.2751	0.03
0.75	234	-0.1856	0.2678	0.0302
0.75	246	0.4962	0.1784	0.0316
0.75	258	0.1217	0.2378	0.0301
0.85	138	-0.1766	0.3546	0.0302
0.85	150	0.2847	0.3483	0.0305
0.85	210	0.2036	0.403	0.0303
0.85	222	-0.0014	0.3171	0.03
0.85	234	-0.0943	0.2528	0.0301
0.85	246	-0.3693	0.2048	0.0309
0.85	258	0.3242	0.2239	0.0307
0.85	270	-0.1466	0.2849	0.0301
0.95	126	-0.3264	0.3307	0.0307
0.95	222	0.521	0.3483	0.0318
0.95	234	-0.3995	0.258	0.031
0.95	246	-0.1113	0.3467	0.0301
0.95	258	0.3594	0.2543	0.0308