CLAS Physics Database

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Measurement E151M2706

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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 :	1295 GeV
ε :	0.8904
E_beam :	1.3383 GeV
ε_L:	0.2949

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	246	-0.4329	0.2681	0.0312
0.55	258	0.2961	0.1716	0.0306
0.55	270	-0.2653	0.1739	0.0307
0.65	246	-0.0032	0.3191	0.03
0.65	258	0.1275	0.267	0.0301
0.65	270	0.0646	0.2543	0.03
0.65	282	0.1029	0.3518	0.0301
0.75	114	0.1907	0.3992	0.0302
0.75	126	-0.1805	0.2862	0.0302
0.75	138	0.552	0.2799	0.032
0.75	234	0.1705	0.2719	0.0302
0.75	246	-0.2125	0.2365	0.0303
0.75	258	0.2663	0.2208	0.0305
0.75	270	-0.044	0.2428	0.03
0.75	282	-0.2593	0.2834	0.0304
0.85	102	-0.2183	0.3924	0.0303
0.85	114	-0.0428	0.2615	0.03
0.85	126	0.2376	0.2396	0.0304
0.85	138	0.0214	0.2391	0.03
0.85	150	-0.1667	0.3148	0.0302
0.85	162	0.4969	0.2646	0.0316
0.85	174	0.1009	0.2972	0.0301
0.85	186	-0.3157	0.3507	0.0307
0.85	234	-0.2303	0.2654	0.0304
0.85	246	-0.1188	0.2656	0.0301
0.85	258	-0.4216	0.2157	0.0312
0.85	270	0.3185	0.2086	0.0307
0.85	282	0.1646	0.2353	0.0302
0.85	294	0.2506	0.3624	0.0304
0.95	90	-0.3074	0.4141	0.0306
0.95	114	-0.3829	0.3247	0.031
0.95	126	-0.1823	0.3338	0.0302
0.95	138	0.3962	0.3544	0.031
0.95	150	-0.1739	0.2641	0.0302
0.95	162	0.0702	0.3416	0.03
0.95	174	0.1044	0.3641	0.0301
0.95	186	0.1337	0.3618	0.0301
0.95	246	0.4571	0.2314	0.0314
0.95	258	-0.2859	0.2626	0.0305
0.95	270	-0.1226	0.3252	0.0301
0.95	282	-0.7476	0.2134	0.0335
0.55	282	0.1187	0.2667	0.0301
0.65	126	-0.1421	0.2795	0.0301
0.65	234	-0.1026	0.2609	0.0301
0.65	246	0.1515	0.2227	0.0302
0.65	258	-0.173	0.1622	0.0302
0.65	270	-0.0108	0.1794	0.03
0.65	282	0.533	0.2268	0.0318
0.75	114	-0.0959	0.2031	0.0301
0.75	126	0.205	0.1772	0.0303
0.75	138	-0.0837	0.2181	0.03
0.75	222	0.2	0.223	0.0303
0.75	234	0.1415	0.1831	0.0301
0.75	246	-0.2035	0.1751	0.0303
0.75	258	0.0151	0.175	0.03
0.75	270	0.1331	0.1589	0.0301
0.75	282	0.06	0.192	0.03
0.75	294	-0.1965	0.2645	0.0303
0.85	102	-0.0611	0.2695	0.03
0.85	114	0.2601	0.2036	0.0304
0.85	126	-0.0535	0.1843	0.03
0.85	138	0.1629	0.1922	0.0302
0.85	150	0.3753	0.189	0.0309
0.85	162	-0.1825	0.205	0.0302
0.85	174	0.1943	0.2528	0.0303
0.85	186	-0.0165	0.2185	0.03
0.85	234	-0.2356	0.2	0.0304
0.85	246	-0.0048	0.1652	0.03
0.85	258	-0.134	0.1918	0.0301
0.85	270	-0.251	0.1579	0.0304
0.85	282	0.0012	0.1574	0.03
0.85	294	0.0766	0.2571	0.03
0.95	90	0.3519	0.2438	0.0308
0.95	102	-0.2455	0.2383	0.0304
0.95	114	0.0404	0.2559	0.03
0.95	126	0.1213	0.2196	0.0301
0.95	138	0.0931	0.2722	0.0301
0.95	150	0.3534	0.2138	0.0308
0.95	174	-0.5011	0.235	0.0316
0.95	186	0.7465	0.2157	0.0335
0.95	234	0.0904	0.2133	0.0301
0.95	246	-0.0455	0.2044	0.03
0.95	258	-0.0676	0.2263	0.03
0.95	270	0.0124	0.1894	0.03