CLAS Physics Database

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Measurement E151M3241

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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 :	0.205 GeV²
W :	1385 GeV
ε :	0.9171
E_beam :	2.2596 GeV
ε_L:	0.4286

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
0.65	102	0.3411	0.2312	0.0308
0.65	246	-0.2969	0.2505	0.0306
0.65	258	-0.2671	0.2219	0.0305
0.75	90	0.06	0.21	0.03
0.75	102	-0.0524	0.1854	0.03
0.75	114	0.023	0.2213	0.03
0.75	246	0.017	0.2257	0.03
0.75	258	-0.1366	0.2166	0.0301
0.75	270	-0.2563	0.2484	0.0304
0.85	90	0.0246	0.2563	0.03
0.85	102	0.0231	0.1997	0.03
0.85	114	0.0468	0.2035	0.03
0.85	126	-0.2463	0.2076	0.0304
0.85	222	-0.0919	0.2259	0.0301
0.85	234	0.0147	0.2475	0.03
0.85	246	-0.3036	0.238	0.0306
0.85	258	-0.0158	0.2153	0.03
0.85	270	0.2301	0.2266	0.0304
0.85	282	-0.1421	0.2148	0.0301
0.85	294	0.1357	0.2404	0.0301
0.95	114	0.0432	0.2556	0.03
0.95	234	-0.1142	0.2358	0.0301
0.95	246	0.5219	0.2295	0.0318
0.95	258	-0.2214	0.2382	0.0303
0.95	270	-0.137	0.2211	0.0301
0.95	282	-0.5083	0.2201	0.0317
0.95	294	-0.0032	0.2086	0.03
0.25	66	0.0174	0.2517	0.03
0.75	90	0.2101	0.2225	0.0303
0.75	102	-0.1476	0.2177	0.0301
0.75	114	0.3971	0.1985	0.031
0.75	234	-0.1115	0.2597	0.0301
0.75	246	-0.3352	0.2549	0.0307
0.75	258	-0.0759	0.2378	0.03
0.75	270	0.3308	0.237	0.0307
0.85	90	0.0067	0.2268	0.03
0.85	102	0.2217	0.2132	0.0303
0.85	114	0.1802	0.199	0.0302
0.85	126	0.0538	0.2502	0.03
0.85	234	-0.1489	0.2204	0.0301
0.85	258	0.1315	0.2234	0.0301
0.85	270	-0.4056	0.2082	0.0311
0.85	282	0.3283	0.2323	0.0307
0.95	114	0.1415	0.2448	0.0301
0.95	234	0.1648	0.2342	0.0302
0.95	246	-0.0384	0.2563	0.03
0.95	270	0.2869	0.2529	0.0305
0.95	282	0.2887	0.2096	0.0306
0.95	294	-0.025	0.249	0.03