CLAS Physics Database

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Measurement E151M3216

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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 :	0.205 GeV²
W :	1325 GeV
ε :	0.9333
E_beam :	2.2596 GeV
ε_L:	0.5774

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
0.65	90	0.1253	0.2437	0.0301
0.75	90	0.2461	0.2273	0.0304
0.75	102	-0.3025	0.2499	0.0306
0.75	114	-0.0684	0.2482	0.03
0.75	258	-0.395	0.2267	0.031
0.75	270	-0.0655	0.2411	0.03
0.75	294	-0.046	0.2548	0.03
0.85	78	-0.0735	0.2641	0.03
0.85	90	0.3144	0.2161	0.0307
0.85	102	-0.3382	0.1909	0.0308
0.85	114	-0.0952	0.2323	0.0301
0.85	126	0.1607	0.231	0.0302
0.85	234	0.6408	0.1974	0.0326
0.85	246	-0.1521	0.2382	0.0302
0.85	258	0.31	0.2065	0.0306
0.85	270	0.0955	0.2193	0.0301
0.85	282	0.2082	0.2151	0.0303
0.85	294	-0.1924	0.229	0.0302
0.95	102	0.6232	0.2167	0.0325
0.95	114	0.0299	0.2308	0.03
0.95	126	-0.0924	0.2598	0.0301
0.95	270	0.007	0.2608	0.03
0.95	294	0.1648	0.2409	0.0302
0.25	66	0.1253	0.2546	0.0301
0.65	102	0.3069	0.2281	0.0306
0.65	258	0.124	0.2324	0.0301
0.65	270	-0.1291	0.2311	0.0301
0.65	282	0.1122	0.2345	0.0301
0.75	78	-0.3227	0.2189	0.0307
0.75	90	0.0727	0.2515	0.03
0.75	102	0.0384	0.2217	0.03
0.75	246	-0.3058	0.225	0.0306
0.75	258	-0.0833	0.1873	0.03
0.75	282	0.0088	0.2267	0.03
0.75	294	0.0121	0.2294	0.03
0.85	78	0.45	0.2349	0.0313
0.85	90	0.3238	0.2034	0.0307
0.85	102	0.1466	0.1762	0.0301
0.85	114	-0.0751	0.1928	0.03
0.85	126	-0.5662	0.2155	0.0321
0.85	234	0.1264	0.2607	0.0301
0.85	246	0.1404	0.2233	0.0301
0.85	258	-0.2997	0.2073	0.0306
0.85	282	-0.2571	0.2176	0.0304
0.85	294	-0.1565	0.2101	0.0302
0.95	90	0.2591	0.2505	0.0304
0.95	102	-0.2649	0.2425	0.0305
0.95	114	-0.5177	0.1923	0.0317
0.95	126	0.3733	0.2293	0.0309
0.95	258	-0.3926	0.2137	0.031
0.95	270	0.166	0.2499	0.0302
0.95	282	-0.0168	0.2587	0.03
0.95	294	-0.0568	0.2477	0.03