CLAS Physics Database

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Measurement E151M2783

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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 :	1415 GeV
ε :	0.7955
E_beam :	1.3383 GeV
ε_L:	0.1394

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	0.0261	0.37	0.03
0.35	42	0.3695	0.3926	0.0309
0.55	234	0.4777	0.2537	0.0315
0.55	246	-0.1535	0.3416	0.0302
0.55	258	0.2533	0.3011	0.0304
0.65	126	0.0743	0.3171	0.03
0.65	138	-0.4942	0.3058	0.0316
0.65	222	-0.3582	0.2939	0.0308
0.65	234	-0.4117	0.2772	0.0311
0.65	246	-0.0625	0.2974	0.03
0.65	258	0.0382	0.3	0.03
0.75	114	-0.0317	0.2958	0.03
0.75	126	0.2721	0.3265	0.0305
0.75	138	0.3054	0.3062	0.0306
0.75	150	-0.1763	0.324	0.0302
0.75	210	0.1467	0.3671	0.0301
0.75	222	-0.4209	0.2255	0.0312
0.75	234	-0.3973	0.2482	0.031
0.75	246	0.3094	0.254	0.0306
0.75	258	-0.0849	0.277	0.03
0.75	270	-0.0227	0.3394	0.03
0.85	126	0.1881	0.3167	0.0302
0.85	150	0.0714	0.2968	0.03
0.85	222	0.2901	0.3332	0.0306
0.85	234	0.1525	0.2961	0.0302
0.85	246	-0.3557	0.2103	0.0308
0.85	258	-0.1371	0.23	0.0301
0.85	270	-0.1596	0.3083	0.0302
0.95	114	0.3043	0.3519	0.0306
0.95	234	0.0872	0.376	0.0301
0.95	246	-0.1246	0.3171	0.0301
0.95	258	-0.1178	0.3494	0.0301
0.95	270	0.0386	0.3074	0.03
0.15	30	-0.1002	0.2691	0.0301
0.55	234	-0.0944	0.2287	0.0301
0.55	246	0.0939	0.2473	0.0301
0.55	258	-0.3089	0.2193	0.0306
0.65	126	-0.0835	0.267	0.03
0.65	138	-0.286	0.204	0.0305
0.65	150	-0.1263	0.2457	0.0301
0.65	222	-0.1254	0.2101	0.0301
0.65	234	-0.2272	0.2008	0.0303
0.65	246	-0.0387	0.1999	0.03
0.65	258	-0.3587	0.2178	0.0308
0.75	114	-0.0365	0.2401	0.03
0.75	126	0.3235	0.1787	0.0307
0.75	138	-0.101	0.2417	0.0301
0.75	150	-0.0703	0.2603	0.03
0.75	162	-0.0072	0.2732	0.03
0.75	222	0.489	0.2195	0.0316
0.75	234	-0.1723	0.1913	0.0302
0.75	246	-0.2076	0.2353	0.0303
0.75	258	0.0198	0.1875	0.03
0.75	270	-0.219	0.2777	0.0303
0.85	102	-0.1757	0.2629	0.0302
0.85	126	0.3099	0.2429	0.0306
0.85	138	0.1499	0.1952	0.0301
0.85	150	-0.2973	0.2667	0.0306
0.85	162	-0.1014	0.2849	0.0301
0.85	222	-0.0827	0.2235	0.03
0.85	234	0.422	0.227	0.0312
0.85	246	-0.298	0.1848	0.0306
0.85	258	-0.123	0.1834	0.0301
0.85	270	-0.1582	0.1717	0.0302
0.95	102	0.2924	0.2516	0.0306
0.95	114	0.4345	0.2053	0.0312
0.95	246	-0.0373	0.2675	0.03
0.95	258	-0.2118	0.201	0.0303
0.95	270	-0.0863	0.2304	0.03