CLAS Physics Database

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Measurement E151M2936

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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 :	1265 GeV
ε :	0.9544
E_beam :	1.9889 GeV
ε_L:	0.5037

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	66	-0.1345	0.1767	0.0301
0.25	78	0.2002	0.2366	0.0303
0.25	294	-0.2877	0.2591	0.0305
0.35	66	-0.0645	0.1768	0.03
0.35	78	0.0133	0.1841	0.03
0.45	66	-0.0705	0.1736	0.03
0.45	78	-0.065	0.161	0.03
0.45	90	-0.1869	0.2862	0.0302
0.45	282	-0.1241	0.277	0.0301
0.45	294	0.3292	0.2305	0.0307
0.55	66	-0.4029	0.2148	0.0311
0.55	78	0.1861	0.1649	0.0302
0.55	90	-0.0982	0.1916	0.0301
0.55	270	-0.0723	0.1746	0.03
0.55	282	-0.2228	0.1862	0.0303
0.65	78	0.1033	0.2264	0.0301
0.65	90	-0.1574	0.2485	0.0302
0.65	246	0.0454	0.2817	0.03
0.65	258	-0.0583	0.164	0.03
0.65	270	0.2239	0.1498	0.0303
0.65	282	-0.1066	0.1571	0.0301
0.75	78	-0.1226	0.2803	0.0301
0.75	90	-0.0666	0.2121	0.03
0.75	102	-0.1606	0.206	0.0302
0.75	114	0.1098	0.1903	0.0301
0.75	126	-0.143	0.2182	0.0301
0.75	234	0.462	0.196	0.0314
0.75	246	-0.23	0.1612	0.0304
0.75	258	0.0979	0.1561	0.0301
0.75	270	0.0442	0.139	0.03
0.75	282	0.2304	0.1782	0.0304
0.85	90	-0.0847	0.1751	0.03
0.85	102	-0.073	0.1403	0.03
0.85	114	0.2635	0.1679	0.0305
0.85	126	0.2175	0.1441	0.0303
0.85	138	0.1041	0.1716	0.0301
0.85	150	-0.0335	0.1933	0.03
0.85	162	0.1087	0.2138	0.0301
0.85	174	-0.3652	0.2405	0.0309
0.85	234	-0.1708	0.2156	0.0302
0.85	246	-0.22	0.1755	0.0303
0.85	258	-0.0262	0.1477	0.03
0.85	270	0.3091	0.1522	0.0306
0.85	282	-0.0792	0.1759	0.03
0.95	102	-0.0595	0.1758	0.03
0.95	114	-0.1629	0.1638	0.0302
0.95	126	-0.0392	0.1762	0.03
0.95	138	0.1247	0.1695	0.0301
0.95	150	0.0118	0.1816	0.03
0.95	162	-0.0899	0.1855	0.0301
0.95	174	-0.1815	0.2202	0.0302
0.95	186	-0.0384	0.2239	0.03
0.95	198	-0.1738	0.2666	0.0302
0.95	210	-0.0101	0.2754	0.03
0.95	222	-0.3663	0.2336	0.0309
0.95	246	-0.2151	0.2444	0.0303
0.95	258	-0.1081	0.2657	0.0301