CLAS Physics Database

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Measurement E151M3073

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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 :	0.101 GeV²
W :	1535 GeV
ε :	0.8485
E_beam :	1.9889 GeV
ε_L:	0.1213

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	-0.3714	0.2686	0.0309
0.35	66	-0.1765	0.253	0.0302
0.35	78	-0.1558	0.2549	0.0302
0.35	282	0.0093	0.2348	0.03
0.35	294	-0.3498	0.2112	0.0308
0.45	78	0.4293	0.2012	0.0312
0.45	90	0.1375	0.2746	0.0301
0.45	270	-0.1867	0.2218	0.0302
0.45	282	0.5698	0.1924	0.0321
0.45	294	0.0309	0.25	0.03
0.55	102	0.3723	0.274	0.0309
0.55	114	0.1102	0.2294	0.0301
0.55	222	0.2841	0.2542	0.0305
0.55	234	-0.2828	0.2429	0.0305
0.55	246	0.5534	0.2343	0.032
0.55	258	-0.0128	0.2698	0.03
0.55	270	-0.0248	0.2363	0.03
0.55	282	-0.2043	0.229	0.0303
0.65	66	0.1747	0.2658	0.0302
0.65	78	0.2458	0.2588	0.0304
0.65	102	0.0869	0.2584	0.0301
0.65	114	0.1613	0.2079	0.0302
0.65	126	-0.2896	0.2187	0.0306
0.65	138	-0.1733	0.2137	0.0302
0.65	210	-0.002	0.2669	0.03
0.65	222	-0.1699	0.2	0.0302
0.65	234	-0.0608	0.2039	0.03
0.65	294	-0.2141	0.1955	0.0303
0.65	306	0.1607	0.2662	0.0302
0.75	66	0.1665	0.2728	0.0302
0.75	102	-0.3349	0.2025	0.0307
0.75	114	-0.0455	0.2045	0.03
0.75	126	-0.2482	0.1925	0.0304
0.75	138	0.0908	0.1906	0.0301
0.75	210	0.0878	0.2668	0.0301
0.75	222	-0.0073	0.2026	0.03
0.75	234	-0.1315	0.189	0.0301
0.75	246	-0.316	0.1998	0.0307
0.75	282	0.3366	0.2402	0.0307
0.75	294	0.0938	0.2597	0.0301
0.85	90	-0.0994	0.2288	0.0301
0.85	102	0.1336	0.2254	0.0301
0.85	210	-0.2974	0.1886	0.0306
0.85	222	0.1495	0.2025	0.0301
0.85	234	0.2817	0.1836	0.0305
0.85	246	-0.1713	0.1984	0.0302
0.85	258	0.3095	0.2245	0.0306
0.95	114	0.1676	0.2493	0.0302
0.95	222	-0.3315	0.2292	0.0307
0.95	234	-0.2061	0.1849	0.0303
0.95	246	0.0441	0.2131	0.03
0.95	258	0.1077	0.2646	0.0301