CLAS Physics Database

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Measurement E151M3397

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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 :	0.2915 GeV²
W :	1235 GeV
ε :	0.9649
E_beam :	2.999 GeV
ε_L:	1.1298

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
0.15	66	0.2136	0.2333	0.0303
0.25	66	0.106	0.2112	0.0301
0.25	294	-0.1597	0.2526	0.0302
0.35	66	0.3266	0.1986	0.0307
0.35	282	-0.1148	0.2317	0.0301
0.35	294	-0.2583	0.2172	0.0304
0.45	270	0.0005	0.2818	0.03
0.45	282	-0.0659	0.2163	0.03
0.45	294	-0.0115	0.1657	0.03
0.55	78	-0.1711	0.2693	0.0302
0.55	282	-0.0824	0.2036	0.03
0.55	294	-0.2436	0.1737	0.0304
0.65	66	0.0692	0.2348	0.03
0.65	78	0.5811	0.1659	0.0322
0.65	90	-0.1065	0.213	0.0301
0.65	270	0.0477	0.1833	0.03
0.65	282	0.1744	0.1596	0.0302
0.65	294	0.1428	0.1602	0.0301
0.65	306	0.3457	0.2505	0.0308
0.75	54	-0.3813	0.2472	0.031
0.75	66	0.0888	0.1905	0.0301
0.75	78	0.1196	0.2053	0.0301
0.75	90	0.1099	0.1855	0.0301
0.75	102	-0.7024	0.1422	0.0331
0.75	258	0.1336	0.2753	0.0301
0.75	270	0.0603	0.193	0.03
0.75	282	-0.2129	0.16	0.0303
0.75	294	-0.1429	0.1718	0.0301
0.75	306	0.535	0.1904	0.0319
0.85	54	-0.2783	0.199	0.0305
0.85	66	0.1237	0.1629	0.0301
0.85	78	0.1364	0.1529	0.0301
0.85	90	0.0591	0.1548	0.03
0.85	102	0.261	0.1671	0.0305
0.85	114	-0.0722	0.2118	0.03
0.85	246	-0.4245	0.2343	0.0312
0.85	258	0.116	0.2223	0.0301
0.85	270	0.0139	0.1917	0.03
0.85	282	-0.1362	0.1678	0.0301
0.85	294	-0.2436	0.19	0.0304
0.85	306	-0.085	0.1725	0.03
0.95	42	0.1947	0.2497	0.0303
0.95	54	-0.045	0.2186	0.03
0.95	66	-0.4444	0.1984	0.0313
0.95	78	0.1495	0.1952	0.0301
0.95	90	-0.0253	0.2241	0.03
0.95	102	-0.1742	0.1948	0.0302
0.95	114	0.0074	0.2065	0.03
0.95	126	-0.0712	0.214	0.03
0.95	138	-0.2653	0.2517	0.0305
0.95	258	-0.2574	0.2601	0.0304
0.95	282	0.3127	0.2594	0.0306
0.95	294	0.3251	0.2291	0.0307