CLAS Physics Database

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Measurement E151M3579

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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 :	1715 GeV
ε :	0.8885
E_beam :	2.999 GeV
ε_L:	0.0574

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	66	-0.0676	0.2457	0.03
0.35	66	0.3864	0.2205	0.031
0.35	78	-0.3719	0.2165	0.0309
0.35	126	-0.1349	0.254	0.0301
0.35	270	-0.0464	0.2266	0.03
0.35	282	-0.3491	0.1988	0.0308
0.45	66	0.3249	0.2894	0.0307
0.45	114	0.2499	0.2427	0.0304
0.45	126	-0.0613	0.26	0.03
0.45	138	0.1117	0.2947	0.0301
0.45	258	0.0088	0.2273	0.03
0.45	270	-0.3608	0.1772	0.0309
0.55	66	0.6704	0.1903	0.0329
0.55	78	0.1487	0.2584	0.0301
0.55	114	-0.004	0.2639	0.03
0.55	126	0.5341	0.1826	0.0318
0.55	138	-0.0653	0.2492	0.03
0.55	198	0.2554	0.2209	0.0304
0.55	210	-0.0065	0.249	0.03
0.55	222	-0.2375	0.2157	0.0304
0.55	258	0.459	0.2335	0.0314
0.55	270	-0.0067	0.2037	0.03
0.55	282	-0.2807	0.2614	0.0305
0.65	54	0.0122	0.2241	0.03
0.65	66	0.174	0.2513	0.0302
0.65	102	0.0914	0.2258	0.0301
0.65	114	0.2885	0.1544	0.0305
0.65	126	-0.0351	0.1649	0.03
0.65	138	-0.1172	0.2135	0.0301
0.65	174	-0.3833	0.256	0.031
0.65	186	0.0238	0.2368	0.03
0.65	198	0.2022	0.1773	0.0303
0.65	210	0.1162	0.1715	0.0301
0.65	222	-0.0096	0.1768	0.03
0.65	246	-0.3314	0.2333	0.0307
0.65	282	-0.1442	0.1847	0.0301
0.65	294	0.3869	0.2091	0.031
0.75	90	0.2692	0.2157	0.0305
0.75	102	-0.2663	0.1905	0.0305
0.75	114	0.2713	0.2419	0.0305
0.75	126	-0.0955	0.2291	0.0301
0.75	138	-0.3047	0.2428	0.0306
0.75	174	0.1177	0.2462	0.0301
0.75	186	0.2087	0.1969	0.0303
0.75	198	-0.0675	0.1727	0.03
0.75	210	-0.1829	0.1589	0.0302
0.75	222	-0.1058	0.1803	0.0301
0.75	234	-0.3773	0.1827	0.0309
0.75	270	-0.0165	0.1781	0.03
0.75	282	-0.0939	0.1635	0.0301
0.75	294	-0.3672	0.2145	0.0309
0.85	90	0.2125	0.1728	0.0303
0.85	102	-0.1761	0.1413	0.0302
0.85	114	0.3737	0.1585	0.0309
0.85	126	0.0628	0.2174	0.03
0.85	162	-0.487	0.2001	0.0315
0.85	174	-0.0078	0.2008	0.03
0.85	186	0.2115	0.1745	0.0303
0.85	198	-0.0022	0.1531	0.03
0.85	210	0.1616	0.1599	0.0302
0.85	222	0.1983	0.1527	0.0303
0.85	234	-0.1431	0.2356	0.0301
0.85	258	0.1677	0.2564	0.0302
0.85	270	-0.2709	0.2493	0.0305
0.85	282	-0.0138	0.221	0.03
0.95	114	0.0877	0.2524	0.0301
0.95	186	0.4607	0.2223	0.0314
0.95	198	0.2549	0.2318	0.0304
0.95	210	-0.4114	0.1779	0.0311
0.95	222	0.1516	0.2033	0.0302
0.95	234	0.0819	0.2819	0.03