CLAS Physics Database

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Measurement E151M3308

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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 :	0.1205 GeV²
W :	1535 GeV
ε :	0.882
E_beam :	2.2596 GeV
ε_L:	0.1469

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
0.35	78	-0.0385	0.2505	0.03
0.35	282	0.0005	0.259	0.03
0.45	282	0.1264	0.2397	0.0301
0.55	114	0.3612	0.2317	0.0309
0.55	126	-0.2267	0.244	0.0303
0.55	270	-0.0935	0.2526	0.0301
0.55	282	0.3437	0.2212	0.0308
0.65	126	-0.27	0.2044	0.0305
0.65	234	0.385	0.218	0.031
0.75	114	-0.176	0.2669	0.0302
0.75	198	-0.3405	0.2299	0.0308
0.75	210	-0.0088	0.2673	0.03
0.75	222	0.1037	0.2628	0.0301
0.75	246	0.1375	0.2173	0.0301
0.75	294	-0.06	0.2604	0.03
0.85	78	0.2993	0.2384	0.0306
0.85	90	-0.0742	0.2425	0.03
0.85	102	0.2031	0.262	0.0303
0.85	126	0.1534	0.26	0.0302
0.85	138	-0.0324	0.2725	0.03
0.85	222	0.0497	0.2047	0.03
0.85	234	-0.4928	0.2149	0.0316
0.85	246	-0.0389	0.2518	0.03
0.95	234	0.2648	0.2282	0.0305
0.95	246	-0.2548	0.2385	0.0304
0.95	270	0.3285	0.2468	0.0307
0.25	78	-0.1813	0.248	0.0302
0.35	78	0.063	0.2646	0.03
0.45	270	0.0821	0.2473	0.03
0.45	282	-0.0307	0.2232	0.03
0.55	126	0.1614	0.2427	0.0302
0.55	282	0.1441	0.2638	0.0301
0.65	114	0.0443	0.233	0.03
0.65	126	-0.2879	0.2395	0.0305
0.65	210	-0.1443	0.2479	0.0301
0.65	222	-0.1781	0.2384	0.0302
0.65	294	0.245	0.252	0.0304
0.75	102	0.0485	0.2436	0.03
0.75	114	0.0637	0.1901	0.03
0.75	126	0.3373	0.187	0.0307
0.75	138	-0.0992	0.2437	0.0301
0.75	222	-0.6116	0.217	0.0324
0.75	234	-0.0067	0.2207	0.03
0.75	246	0.0952	0.1896	0.0301
0.85	78	0.2976	0.2529	0.0306
0.85	90	-0.0518	0.2229	0.03
0.85	210	-0.3545	0.2186	0.0308
0.85	222	-0.3602	0.2007	0.0309
0.85	234	-0.6129	0.1681	0.0324
0.85	246	0.1177	0.2177	0.0301
0.85	258	-0.0408	0.2312	0.03
0.95	222	-0.1471	0.2467	0.0301
0.95	246	-0.2847	0.2378	0.0305
0.95	258	-0.2037	0.2466	0.0303
0.95	270	0.1209	0.2535	0.0301