CLAS Physics Database

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Measurement E151M2764

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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 :	1385 GeV
ε :	0.824
E_beam :	1.3383 GeV
ε_L:	0.1671

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
0.55	234	0.0266	0.2636	0.03
0.55	246	-0.223	0.167	0.0312
0.55	258	-0.1281	0.195	0.0301
0.65	126	0.0371	0.2018	0.0301
0.65	138	0.0297	0.1975	0.0301
0.65	222	0.1265	0.2198	0.0303
0.65	234	-0.2628	0.1837	0.0305
0.65	246	-0.2564	0.1425	0.0308
0.65	258	-0.0306	0.1619	0.0302
0.65	270	0.0176	0.1992	0.0301
0.75	114	0.1397	0.1675	0.0305
0.75	126	0.2061	0.1634	0.0304
0.75	138	-0.1454	0.1795	0.031
0.75	150	0.1719	0.1888	0.0303
0.75	162	0.2438	0.3697	0.0304
0.75	210	-0.0322	0.2503	0.03
0.75	222	0.2377	0.1621	0.0305
0.75	234	-0.0713	0.1704	0.0301
0.75	246	-0.143	0.1405	0.0301
0.75	258	-0.1122	0.133	0.0304
0.75	270	-0.0179	0.2156	0.0301
0.85	102	-0.0903	0.2591	0.0301
0.85	114	0.6139	0.232	0.0324
0.85	126	0.0222	0.1652	0.03
0.85	138	0.2631	0.1659	0.0305
0.85	150	-0.0484	0.192	0.03
0.85	162	0.3042	0.2273	0.0306
0.85	222	0.2208	0.3126	0.0303
0.85	234	-0.1255	0.1581	0.0302
0.85	246	0.1409	0.1439	0.0302
0.85	258	0.0884	0.131	0.0307
0.85	270	-0.008	0.1514	0.03
0.95	102	-0.4032	0.3058	0.0311
0.95	114	-0.3649	0.3397	0.0309
0.95	234	0.2491	0.3292	0.0304
0.95	246	-0.3503	0.2935	0.0308
0.95	258	-0.521	0.2867	0.0318
0.95	270	-0.2435	0.3418	0.0304
0.95	282	-0.5642	0.2103	0.0321
0.85	282	0.3404	0.2338	0.0308
0.95	90	-0.1206	0.2818	0.0301
0.95	102	-0.0594	0.2063	0.03
0.95	114	0.4001	0.198	0.031
0.95	126	0.0595	0.236	0.03
0.95	138	-0.2485	0.2675	0.0304
0.95	234	-0.2437	0.2219	0.0304
0.95	246	0.3081	0.2171	0.0306
0.95	258	-0.2793	0.1954	0.0305
0.95	270	-0.1563	0.2109	0.0302