CLAS Physics Database

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Measurement E151M3479

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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 :	1475 GeV
ε :	0.9537
E_beam :	2.999 GeV
ε_L:	0.1739

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	54	-0.0474	0.2641	0.03
0.25	66	-0.3185	0.2621	0.0307
0.25	294	-0.1188	0.2885	0.0301
0.35	78	-0.1529	0.2193	0.0302
0.35	282	-0.1882	0.2551	0.0302
0.35	294	-0.1767	0.2672	0.0302
0.45	270	-0.0862	0.2285	0.03
0.45	282	0.118	0.2355	0.0301
0.55	54	0.114	0.2668	0.0301
0.55	102	0.2865	0.2217	0.0305
0.55	126	-0.2263	0.2705	0.0303
0.55	282	-0.0988	0.2365	0.0301
0.65	90	-0.3731	0.2449	0.0309
0.65	102	0.1571	0.2462	0.0302
0.65	114	0.0434	0.2482	0.03
0.65	126	0.35	0.2248	0.0308
0.65	138	0.2364	0.2652	0.0304
0.65	234	0.3591	0.1877	0.0308
0.65	246	-0.2437	0.2384	0.0304
0.75	102	0.0461	0.2048	0.03
0.75	114	-0.71	0.1192	0.0332
0.75	126	0.4484	0.1998	0.0313
0.75	138	-0.3499	0.2448	0.0308
0.75	210	0.233	0.2372	0.0304
0.75	222	0.0253	0.2136	0.03
0.75	234	0.1345	0.2061	0.0301
0.75	246	-0.0062	0.2501	0.03
0.75	258	0.089	0.2062	0.0301
0.85	78	0.1986	0.2481	0.0303
0.85	90	-0.2831	0.2963	0.0305
0.85	114	0.2503	0.1831	0.0304
0.85	126	-0.2152	0.1944	0.0303
0.85	138	-0.2253	0.2323	0.0303
0.85	210	0.0509	0.2919	0.03
0.85	222	0.0994	0.2169	0.0301
0.85	234	-0.3061	0.1762	0.0306
0.85	246	-0.0477	0.1792	0.03
0.85	258	-0.0736	0.1847	0.03
0.85	270	0.0851	0.2332	0.03
0.95	222	0.0956	0.2515	0.0301
0.95	246	-0.0932	0.2471	0.0301
0.95	258	0.0693	0.2013	0.03
0.95	270	-0.2231	0.2113	0.0303