CLAS Physics Database

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Measurement E151M3571

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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 :	0.2445 GeV²
W :	1685 GeV
ε :	0.8696
E_beam :	2.999 GeV
ε_L:	0.1542

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
0.35	270	-0.1618	0.253	0.0302
0.35	282	-0.2776	0.266	0.0305
0.45	102	0.371	0.2188	0.0309
0.45	126	0.0977	0.2766	0.0301
0.45	270	0.1792	0.2713	0.0302
0.45	282	-0.1417	0.2405	0.0301
0.55	102	-0.0551	0.2042	0.03
0.55	114	0.2007	0.2008	0.0303
0.55	138	-0.2027	0.2528	0.0303
0.55	270	-0.0895	0.2614	0.0301
0.55	294	-0.1542	0.247	0.0302
0.65	90	0.0236	0.25	0.03
0.65	102	0.2486	0.1811	0.0304
0.65	114	0.4554	0.1921	0.0314
0.65	126	-0.121	0.2357	0.0301
0.65	198	-0.0324	0.2351	0.03
0.65	210	-0.1841	0.2241	0.0302
0.65	222	-0.1019	0.2205	0.0301
0.65	234	0.0691	0.2757	0.03
0.65	282	0.0105	0.2575	0.03
0.65	294	-0.5831	0.1644	0.0322
0.75	78	0.0444	0.2116	0.03
0.75	90	0.6134	0.1869	0.0324
0.75	102	0.1551	0.2745	0.0302
0.75	114	0.0763	0.1892	0.03
0.75	126	-0.1204	0.2426	0.0301
0.75	138	0.2988	0.2514	0.0306
0.75	198	0.2205	0.2228	0.0303
0.75	210	0.1756	0.207	0.0302
0.75	222	-0.2343	0.1686	0.0304
0.75	234	0.2189	0.1937	0.0303
0.75	246	-0.287	0.2532	0.0305
0.75	258	-0.3895	0.2607	0.031
0.75	282	0.1385	0.2364	0.0301
0.75	294	-0.2456	0.2009	0.0304
0.75	306	0.0129	0.2455	0.03
0.85	66	0.4439	0.1811	0.0313
0.85	78	0.0336	0.182	0.03
0.85	90	0.4212	0.1564	0.0312
0.85	102	0.3918	0.2241	0.031
0.85	174	-0.0618	0.2526	0.03
0.85	186	0.3175	0.2233	0.0307
0.85	198	-0.1187	0.188	0.0301
0.85	210	0.2381	0.1728	0.0304
0.85	222	-0.2194	0.1694	0.0303
0.85	234	-0.1802	0.1645	0.0302
0.85	246	-0.1214	0.1569	0.0301
0.85	258	0.2924	0.2112	0.0306
0.85	270	0.2955	0.2438	0.0306
0.95	78	0.1722	0.2785	0.0302
0.95	90	0.5194	0.2278	0.0317
0.95	174	-0.4534	0.2251	0.0313
0.95	198	-0.2851	0.2115	0.0305
0.95	210	-0.2906	0.1876	0.0306
0.95	222	-0.3587	0.1967	0.0308
0.95	234	0.0331	0.2047	0.03
0.95	246	-0.1766	0.1729	0.0302
0.95	258	-0.0374	0.1913	0.03
0.95	270	-0.2439	0.194	0.0304