CLAS Physics Database

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Measurement E151M2502

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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 :	0.7687
E_beam :	1.0539 GeV
ε_L:	0.5212

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
-0.05	42	-0.184	0.2589	0.0302
0.05	42	-0.0033	0.2458	0.03
0.15	42	0.4698	0.2187	0.0314
0.45	270	-0.1747	0.1989	0.0302
0.45	282	0.3464	0.2057	0.0308
0.45	294	-0.3291	0.2275	0.0307
0.55	258	0.0522	0.1928	0.03
0.55	270	-0.2104	0.1863	0.0303
0.55	282	0.0681	0.1944	0.03
0.55	294	-0.0513	0.2535	0.03
0.65	246	0.0036	0.2245	0.03
0.65	258	-0.2013	0.1776	0.0303
0.65	270	-0.097	0.1717	0.0301
0.65	282	-0.0043	0.1632	0.03
0.65	294	0.1208	0.1923	0.0301
0.75	138	0.3968	0.2491	0.031
0.75	246	-0.1209	0.2077	0.0301
0.75	258	-0.388	0.1823	0.031
0.75	270	-0.2411	0.177	0.0304
0.75	282	0.1548	0.1655	0.0302
0.75	294	0.0202	0.1898	0.03
0.85	114	0.0144	0.2267	0.03
0.85	126	-0.1055	0.1979	0.0301
0.85	138	0.3283	0.1746	0.0307
0.85	150	-0.092	0.1798	0.0301
0.85	162	-0.1838	0.2109	0.0302
0.85	174	0.271	0.2097	0.0305
0.85	186	-0.0614	0.2148	0.03
0.85	198	-0.0646	0.2399	0.03
0.85	210	0.0099	0.2431	0.03
0.85	246	-0.2014	0.2495	0.0303
0.85	258	-0.4513	0.2007	0.0313
0.85	270	-0.1477	0.1782	0.0301
0.85	282	-0.1352	0.1794	0.0301
0.85	294	-0.038	0.2172	0.03
0.95	114	0.0959	0.2341	0.0301
0.95	126	0.0861	0.2499	0.03
0.95	138	-0.0204	0.2093	0.03
0.95	150	-0.08	0.2153	0.03
0.95	162	0.1407	0.216	0.0301
0.95	174	0.0949	0.227	0.0301
0.95	186	0.4097	0.187	0.0311
0.95	198	-0.2919	0.2254	0.0306
0.95	210	-0.1884	0.2188	0.0302