CLAS Physics Database

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Measurement E151M2534

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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 :	0.0205 GeV²
W :	1325 GeV
ε :	0.8291
E_beam :	1.0539 GeV
ε_L:	0.0746

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	30	0.0154	0.2567	0.03
0.25	42	-0.0492	0.1828	0.03
0.25	54	0.0489	0.2061	0.03
0.35	30	-0.2305	0.2239	0.0304
0.35	42	0.0479	0.1773	0.03
0.35	54	-0.0259	0.1714	0.03
0.45	18	0.2549	0.2202	0.0304
0.45	30	0.0817	0.1569	0.03
0.45	42	-0.0657	0.1697	0.03
0.45	54	-0.0068	0.1959	0.03
0.45	246	0.006	0.243	0.03
0.55	30	-0.3668	0.2084	0.0309
0.55	42	0.0306	0.1369	0.03
0.55	54	-0.02	0.1723	0.03
0.55	162	0.2227	0.2556	0.0303
0.55	222	0.2025	0.2025	0.0303
0.55	234	-0.3386	0.1562	0.0308
0.55	246	-0.1183	0.14	0.0301
0.55	258	-0.2594	0.1585	0.0304
0.55	270	-0.0321	0.2168	0.03
0.65	138	-0.1957	0.2109	0.0303
0.65	150	0.0631	0.1676	0.03
0.65	162	-0.0193	0.1857	0.03
0.65	174	0.1776	0.2339	0.0302
0.65	186	0.3672	0.2355	0.0309
0.65	210	0.1253	0.256	0.0301
0.65	222	0.0042	0.1718	0.03
0.65	234	-0.0492	0.1361	0.03
0.65	246	0.1874	0.1349	0.0302
0.65	258	-0.1504	0.1297	0.0302
0.65	270	-0.2622	0.1752	0.0305
0.75	138	0.0506	0.2196	0.03
0.75	150	-0.0576	0.1657	0.03
0.75	162	0.0371	0.2191	0.03
0.75	174	-0.0468	0.2167	0.03
0.75	186	-0.1692	0.2056	0.0302
0.75	198	-0.1025	0.2513	0.0301
0.75	210	0.096	0.2094	0.0301
0.75	222	-0.0669	0.1667	0.03
0.75	234	-0.0441	0.1353	0.03
0.75	246	0.08	0.1333	0.03
0.75	258	0.148	0.1361	0.0301
0.75	270	-0.237	0.1727	0.0304
0.85	138	0.2616	0.2436	0.0305
0.85	150	0.1182	0.2073	0.0301
0.85	162	-0.1716	0.2058	0.0302
0.85	174	0.2736	0.2274	0.0305
0.85	210	-0.2928	0.2216	0.0306
0.85	222	-0.1079	0.1902	0.0301
0.85	234	-0.1511	0.152	0.0302
0.85	246	0.1768	0.1329	0.0302
0.85	258	-0.0249	0.1343	0.03
0.85	270	0.2915	0.1679	0.0306
0.95	246	-0.0283	0.2505	0.03