CLAS Physics Database

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Measurement E151M2691

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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 :	0.1435 GeV²
W :	1265 GeV
ε :	0.8652
E_beam :	1.3383 GeV
ε_L:	0.5866

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	282	-0.1613	0.1764	0.0305
0.55	258	-0.2641	0.2437	0.0305
0.55	270	-0.0932	0.1645	0.0301
0.55	282	0.0558	0.1902	0.0303
0.65	258	-0.0145	0.2776	0.03
0.65	270	0.0455	0.2568	0.03
0.65	282	-0.3296	0.3293	0.0307
0.65	294	-0.2076	0.2981	0.0303
0.75	114	-0.1648	0.3842	0.0302
0.75	126	-0.6049	0.2676	0.0323
0.75	234	0.073	0.4598	0.03
0.75	258	0.2469	0.2858	0.0304
0.75	270	0.0404	0.2865	0.03
0.75	282	-0.163	0.324	0.0302
0.75	294	-0.5217	0.2505	0.0318
0.85	90	-0.3001	0.3871	0.0306
0.85	102	-0.5861	0.1984	0.0322
0.85	114	-0.1125	0.271	0.0301
0.85	126	-0.421	0.2297	0.0312
0.85	138	0.0314	0.2972	0.03
0.85	150	0.2681	0.3374	0.0305
0.85	162	-0.4604	0.2594	0.0314
0.85	246	-0.1649	0.3693	0.0302
0.85	258	0.4604	0.2777	0.0314
0.85	270	0.1507	0.3049	0.0302
0.85	282	0.0815	0.3026	0.03
0.85	294	0.3359	0.2389	0.0307
0.95	66	-0.342	0.3489	0.0308
0.95	102	0.4579	0.2528	0.0314
0.95	114	-0.5187	0.2674	0.0317
0.95	126	0.2188	0.3619	0.0303
0.95	138	-0.0735	0.3025	0.03
0.95	150	-0.6139	0.212	0.0324
0.95	162	-0.1518	0.3386	0.0302
0.95	174	0.258	0.3012	0.0304
0.95	186	-0.1013	0.4011	0.0301
0.95	258	0.1348	0.3636	0.0301
0.95	270	-0.3698	0.3921	0.0309
0.55	294	-0.4513	0.2421	0.0313
0.65	258	0.0898	0.1806	0.0301
0.65	270	0.0335	0.1717	0.03
0.65	282	-0.0167	0.196	0.03
0.65	294	0.2858	0.2699	0.0305
0.75	246	0.0197	0.2183	0.03
0.75	258	-0.5048	0.205	0.0317
0.75	270	0.1529	0.1725	0.0302
0.75	282	0.1339	0.1838	0.0301
0.75	294	-0.1335	0.2448	0.0301
0.85	90	-0.0115	0.2727	0.03
0.85	102	-0.0673	0.2116	0.03
0.85	114	0.2056	0.1777	0.0303
0.85	126	-0.0098	0.1883	0.03
0.85	138	0.087	0.1963	0.0301
0.85	150	-0.219	0.2411	0.0303
0.85	162	-0.507	0.2451	0.0317
0.85	246	-0.2109	0.2656	0.0303
0.85	258	-0.3419	0.2352	0.0308
0.85	270	0.3287	0.1916	0.0307
0.85	282	-0.3892	0.2141	0.031
0.85	294	0.0936	0.2204	0.0301
0.95	66	-0.2402	0.2301	0.0304
0.95	102	0.1504	0.233	0.0302
0.95	114	0.1587	0.1885	0.0302
0.95	126	-0.0316	0.2207	0.03
0.95	138	-0.2324	0.2489	0.0304
0.95	150	0.09	0.235	0.0301
0.95	162	-0.1573	0.2512	0.0302
0.95	174	-0.3125	0.1861	0.0306
0.95	186	0.0273	0.2556	0.03
0.95	198	-0.0417	0.2533	0.03
0.95	210	0.0642	0.2682	0.03
0.95	270	0.0149	0.289	0.03
0.95	294	0.0083	0.2821	0.03