CLAS Physics Database

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Measurement E151M2934

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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 :	0.0707 GeV²
W :	1265 GeV
ε :	0.9615
E_beam :	1.9889 GeV
ε_L:	0.3833

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	306	-0.054	0.2529	0.03
0.25	66	0.3384	0.2019	0.0308
0.25	78	0.002	0.2553	0.03
0.25	294	-0.1488	0.2467	0.0301
0.25	306	-0.0194	0.1851	0.03
0.35	66	0.1142	0.1675	0.0301
0.35	78	-0.0085	0.1508	0.03
0.35	294	0.152	0.2197	0.0302
0.35	306	0.0145	0.2445	0.03
0.45	66	-0.0139	0.1513	0.03
0.45	78	-0.2635	0.1272	0.0305
0.45	90	0.2391	0.2021	0.0304
0.45	270	0.4361	0.2503	0.0312
0.45	282	-0.3986	0.1979	0.031
0.45	294	-0.2028	0.2023	0.0303
0.55	66	-0.0237	0.2827	0.03
0.55	78	-0.1241	0.1264	0.0301
0.55	90	-0.094	0.1667	0.0301
0.55	258	-0.3729	0.2136	0.0309
0.55	270	0.0659	0.1801	0.03
0.55	282	-0.0552	0.2184	0.03
0.65	78	-0.1115	0.1834	0.0301
0.65	90	0.1624	0.1672	0.0302
0.65	102	0.1179	0.2252	0.0301
0.65	114	-0.1826	0.2579	0.0302
0.65	246	-0.0177	0.2239	0.03
0.65	258	0.01	0.1428	0.03
0.65	270	-0.2576	0.1282	0.0304
0.65	282	-0.0182	0.1517	0.03
0.75	90	-0.1647	0.2509	0.0302
0.75	102	0.047	0.1646	0.03
0.75	114	-0.1948	0.1759	0.0303
0.75	126	-0.1804	0.1901	0.0302
0.75	138	0.1985	0.22	0.0303
0.75	234	-0.0587	0.1858	0.03
0.75	246	0.0064	0.142	0.03
0.75	258	-0.0114	0.1297	0.03
0.75	270	-0.0186	0.1243	0.03
0.75	282	0.1147	0.1807	0.0301
0.85	90	-0.2503	0.2514	0.0304
0.85	102	0.0229	0.1755	0.03
0.85	114	0.1378	0.1513	0.0301
0.85	126	0.254	0.1412	0.0304
0.85	138	-0.1036	0.1383	0.0301
0.85	150	0.1055	0.1823	0.0301
0.85	162	-0.2415	0.1595	0.0304
0.85	174	-0.1704	0.1976	0.0302
0.85	186	0.0214	0.2456	0.03
0.85	198	-0.4555	0.259	0.0314
0.85	210	-0.212	0.2579	0.0303
0.85	222	-0.0645	0.1921	0.03
0.85	234	-0.2182	0.1839	0.0303
0.85	246	0.0732	0.1486	0.03
0.85	258	0.1004	0.1381	0.0301
0.85	270	0.0657	0.1595	0.03
0.95	102	-0.2159	0.2565	0.0303
0.95	114	-0.0278	0.1979	0.03
0.95	126	-0.0485	0.165	0.03
0.95	138	0.1735	0.165	0.0302
0.95	150	0.1105	0.1693	0.0301
0.95	162	-0.082	0.1645	0.03
0.95	174	-0.1611	0.1833	0.0302
0.95	186	-0.2168	0.1946	0.0303
0.95	198	-0.4272	0.2025	0.0312
0.95	210	0.0204	0.2129	0.03
0.95	222	-0.0757	0.2254	0.03
0.95	234	-0.0553	0.2455	0.03
0.95	246	-0.2229	0.2723	0.0303
0.95	258	-0.1838	0.2208	0.0302