CLAS Physics Database

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Measurement E151M3464

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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 :	0.496 GeV²
W :	1415 GeV
ε :	0.9103
E_beam :	2.999 GeV
ε_L:	0.6075

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
0.45	90	-0.2927	0.2594	0.0306
0.55	78	-0.1883	0.2503	0.0302
0.55	90	-0.2678	0.2171	0.0305
0.55	102	-0.0625	0.2635	0.03
0.65	78	-0.0799	0.2185	0.03
0.65	90	-0.1921	0.2064	0.0302
0.65	102	-0.0306	0.2428	0.03
0.65	114	-0.3936	0.2107	0.031
0.65	258	0.447	0.2455	0.0313
0.65	270	0.2226	0.263	0.0303
0.75	54	-0.3672	0.211	0.0309
0.75	78	-0.3095	0.1921	0.0306
0.75	90	0.2145	0.2241	0.0303
0.75	102	0.2691	0.223	0.0305
0.75	114	-0.1833	0.2886	0.0302
0.75	126	-0.1179	0.279	0.0301
0.75	234	0.3129	0.2128	0.0306
0.75	246	0.5235	0.1977	0.0318
0.75	258	0.1281	0.2055	0.0301
0.75	270	0.0896	0.2091	0.0301
0.75	282	-0.7831	0.1355	0.0338
0.75	294	0.1618	0.2409	0.0302
0.75	306	0.2718	0.2398	0.0305
0.85	42	-0.4075	0.2426	0.0311
0.85	90	-0.0025	0.2013	0.03
0.85	102	0.0995	0.1934	0.0301
0.85	210	0.2294	0.253	0.0303
0.85	222	0.1946	0.2295	0.0303
0.85	234	-0.2025	0.2778	0.0303
0.85	246	-0.2923	0.2381	0.0306
0.85	258	0.347	0.1993	0.0308
0.85	270	0.2196	0.1895	0.0303
0.85	282	-0.3819	0.2001	0.031
0.85	294	0.1191	0.2498	0.0301
0.85	306	0.3438	0.1968	0.0308
0.85	318	0.1253	0.206	0.0301
0.85	330	0.1295	0.2128	0.0301
0.95	102	0.1709	0.2699	0.0302
0.95	210	-0.304	0.2564	0.0306
0.95	234	-0.0707	0.2762	0.03
0.95	246	0.1549	0.2282	0.0302
0.95	258	-0.1587	0.2157	0.0302
0.95	270	-0.1321	0.2662	0.0301
0.95	282	0.0314	0.2368	0.03
0.95	294	-0.2876	0.2404	0.0305
0.95	306	-0.1119	0.2292	0.0301
0.95	318	0.1178	0.2164	0.0301
0.95	330	-0.0584	0.2634	0.03