CLAS Physics Database

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Measurement E151M2688

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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 :	0.0844 GeV²
W :	1265 GeV
ε :	0.8992
E_beam :	1.3383 GeV
ε_L:	0.4134

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
0.45	270	0.3978	0.2885	0.031
0.45	282	0.5781	0.2581	0.0322
0.55	258	-0.3472	0.3282	0.0308
0.55	270	-0.3494	0.2465	0.0308
0.55	282	0.2997	0.2973	0.0306
0.65	246	0.251	0.2906	0.0304
0.65	258	0.166	0.2828	0.0302
0.65	270	-0.0063	0.2131	0.03
0.65	282	-0.7388	0.1396	0.0334
0.75	114	-0.4565	0.4065	0.0314
0.75	126	-0.4649	0.2637	0.0314
0.75	138	-0.2136	0.3469	0.0303
0.75	234	0.5055	0.3106	0.0317
0.75	246	-0.0562	0.3162	0.03
0.75	258	-0.0788	0.2476	0.03
0.75	270	0.316	0.2325	0.0307
0.75	282	0.2146	0.233	0.0303
0.75	294	0.242	0.312	0.0304
0.85	102	-0.0537	0.327	0.03
0.85	114	0.387	0.2688	0.031
0.85	126	0.1593	0.2467	0.0302
0.85	138	0.0536	0.2776	0.03
0.85	150	-0.381	0.2912	0.031
0.85	162	0.3237	0.3074	0.0307
0.85	174	-0.0207	0.3191	0.03
0.85	186	-0.5378	0.355	0.0319
0.85	198	-0.4884	0.3949	0.0316
0.85	210	-0.0089	0.4016	0.03
0.85	222	-0.3814	0.2951	0.031
0.85	234	0.6013	0.2411	0.0323
0.85	246	-0.459	0.2911	0.0314
0.85	258	0.2151	0.2355	0.0303
0.85	270	-0.0786	0.2354	0.03
0.85	282	-0.0467	0.2562	0.03
0.85	294	0.2201	0.3195	0.0303
0.95	78	0.731	0.1642	0.0334
0.95	90	-0.1012	0.3309	0.0301
0.95	114	-0.536	0.2426	0.0319
0.95	126	0.4152	0.254	0.0311
0.95	138	0.1157	0.2744	0.0301
0.95	150	0.5736	0.1705	0.0321
0.95	162	-0.0386	0.258	0.03
0.95	174	-0.3469	0.3125	0.0308
0.95	234	0.2046	0.3898	0.0303
0.95	258	-0.5863	0.3236	0.0322
0.95	270	-0.2625	0.3717	0.0305
0.95	282	-0.3808	0.361	0.031
0.15	42	-0.1028	0.2792	0.0301
0.45	270	0.0707	0.2667	0.03
0.45	282	-0.0128	0.2703	0.03
0.55	258	-0.07	0.2587	0.03
0.55	270	0.031	0.1841	0.03
0.55	282	-0.3404	0.2173	0.0308
0.65	246	-0.3745	0.1582	0.0309
0.65	258	0.0291	0.1789	0.03
0.65	270	0.1392	0.161	0.0301
0.65	282	-0.3437	0.1657	0.0308
0.65	294	-0.1296	0.2794	0.0301
0.75	114	-0.1128	0.2522	0.0301
0.75	126	-0.0777	0.2782	0.03
0.75	138	0.0712	0.2776	0.03
0.75	234	0.0986	0.2423	0.0301
0.75	246	-0.0201	0.2126	0.03
0.75	258	-0.0152	0.1495	0.03
0.75	270	0.3334	0.1558	0.0307
0.75	282	-0.1504	0.1583	0.0302
0.75	294	0.0208	0.1956	0.03
0.85	102	-0.5025	0.1849	0.0316
0.85	114	0.2303	0.1707	0.0304
0.85	126	-0.2927	0.1795	0.0306
0.85	138	-0.2818	0.1662	0.0305
0.85	150	-0.1604	0.1894	0.0302
0.85	162	0.2057	0.1904	0.0303
0.85	174	0.2501	0.2042	0.0304
0.85	186	-0.2118	0.2526	0.0303
0.85	198	-0.2883	0.2736	0.0305
0.85	234	-0.4392	0.2096	0.0313
0.85	246	0.0211	0.1961	0.03
0.85	258	-0.173	0.1825	0.0302
0.85	270	0.1789	0.1635	0.0302
0.85	282	0.1366	0.178	0.0301
0.85	294	-0.3668	0.213	0.0309
0.95	90	0.3234	0.2509	0.0307
0.95	114	0.3457	0.2335	0.0308
0.95	126	-0.0423	0.1964	0.03
0.95	138	-0.0903	0.2095	0.0301
0.95	150	0.2596	0.1933	0.0304
0.95	162	-0.2292	0.2477	0.0303
0.95	174	0.0546	0.1972	0.03
0.95	186	-0.1335	0.2172	0.0301
0.95	198	-0.2478	0.2577	0.0304
0.95	258	-0.2693	0.2368	0.0305
0.95	270	-0.0147	0.2609	0.03