CLAS Physics Database

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Measurement E151M3229

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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 :	0.2445 GeV²
W :	1355 GeV
ε :	0.9168
E_beam :	2.2596 GeV
ε_L:	0.5481

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
0.75	78	0.3805	0.2388	0.0309
0.75	90	0.4512	0.2071	0.0313
0.75	102	-0.0273	0.2607	0.03
0.75	246	0.3878	0.2215	0.031
0.75	258	0.3839	0.248	0.031
0.75	270	-0.018	0.2083	0.03
0.75	282	0.2453	0.2518	0.0304
0.85	90	-0.4563	0.2275	0.0314
0.85	102	0.5889	0.1967	0.0322
0.85	114	0.1558	0.2395	0.0302
0.85	258	0.2827	0.2199	0.0305
0.85	270	-0.1394	0.2347	0.0301
0.85	282	0.072	0.2491	0.03
0.85	294	0.3646	0.2234	0.0309
0.95	90	0.1581	0.2612	0.0302
0.95	102	-0.2386	0.2357	0.0304
0.95	282	-0.1131	0.2241	0.0301
0.95	294	0.4719	0.2509	0.0314
0.65	90	0.0322	0.2547	0.03
0.65	102	0.283	0.2465	0.0305
0.65	258	-0.0494	0.2543	0.03
0.75	90	0.274	0.2355	0.0305
0.75	102	0.2065	0.2247	0.0303
0.75	246	-0.3121	0.2189	0.0306
0.75	258	0.2267	0.2396	0.0303
0.75	270	0.2853	0.2505	0.0305
0.75	282	0.1258	0.2085	0.0301
0.75	294	-0.772	0.168	0.0337
0.85	90	-0.1438	0.2296	0.0301
0.85	102	0.0094	0.2418	0.03
0.85	138	0.3518	0.2421	0.0308
0.85	222	0.1866	0.2507	0.0302
0.85	234	0.1157	0.2345	0.0301
0.85	246	0.0086	0.2605	0.03
0.85	258	-0.004	0.2237	0.03
0.85	270	0.3622	0.2383	0.0309
0.85	282	-0.1208	0.2021	0.0301
0.85	294	-0.0579	0.2098	0.03
0.85	306	-0.3228	0.2448	0.0307
0.95	258	0.1008	0.2589	0.0301
0.95	282	-0.0704	0.2146	0.03
0.95	294	0.0609	0.2532	0.03
0.95	306	-0.1201	0.2621	0.0301