CLAS Physics Database

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Measurement E151M2718

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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 :	0.0205 GeV²
W :	1325 GeV
ε :	0.9023
E_beam :	1.3383 GeV
ε_L:	0.0812

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	30	-0.0652	0.3927	0.03
0.25	42	-0.241	0.1921	0.0304
0.25	54	-0.6417	0.1347	0.0331
0.35	30	-0.002	0.3785	0.03
0.35	42	0.2257	0.1627	0.0306
0.45	30	-0.0068	0.3453	0.03
0.45	42	0.1853	0.3601	0.0302
0.55	30	-0.0878	0.4039	0.0301
0.55	42	0.4338	0.3217	0.0312
0.55	234	-0.0312	0.294	0.03
0.55	246	-0.2059	0.2919	0.0303
0.55	258	0.1662	0.3331	0.0302
0.65	126	0.419	0.2454	0.0311
0.65	138	0.0392	0.2706	0.03
0.65	150	-0.3156	0.3071	0.0307
0.65	210	-0.1406	0.3391	0.0301
0.65	222	-0.0162	0.272	0.03
0.65	234	-0.1189	0.2556	0.0301
0.65	246	0.2473	0.206	0.0304
0.65	258	0.5363	0.2167	0.0319
0.65	270	0.0963	0.329	0.0301
0.75	126	0.3505	0.2628	0.0308
0.75	138	0.1759	0.2625	0.0302
0.75	150	-0.2092	0.2571	0.0303
0.75	162	-0.0958	0.323	0.0301
0.75	174	0.1962	0.3872	0.0303
0.75	210	0.2888	0.2995	0.0306
0.75	222	-0.0967	0.2578	0.0301
0.75	234	0.1925	0.207	0.0302
0.75	246	0.012	0.2377	0.03
0.75	258	-0.3053	0.2099	0.0306
0.75	270	0.1255	0.3193	0.0301
0.85	126	0.0878	0.3735	0.0301
0.85	138	0.0387	0.3669	0.03
0.85	150	-0.5052	0.3021	0.0317
0.85	210	-0.0491	0.3364	0.03
0.85	222	0.2482	0.2352	0.0304
0.85	234	-0.2665	0.2288	0.0305
0.85	246	-0.0327	0.2379	0.03
0.85	258	0.3362	0.2186	0.0307
0.85	270	0.1355	0.3545	0.0301
0.95	234	-0.2646	0.4313	0.0305
0.95	246	-0.0201	0.3575	0.03
0.35	54	0.285	0.2337	0.0305
0.45	30	-0.0003	0.2374	0.03
0.45	42	0.0715	0.2457	0.03
0.55	138	0.4683	0.2601	0.0314
0.55	234	0.0641	0.2151	0.03
0.55	246	-0.0574	0.1971	0.03
0.55	258	0.0652	0.2104	0.03
0.65	126	-0.1324	0.2324	0.0301
0.65	138	0.3006	0.2028	0.0306
0.65	150	0.283	0.22	0.0305
0.65	162	-0.2325	0.2333	0.0304
0.65	210	1.035	1.035	0.0364
0.65	222	0.0503	0.1762	0.03
0.65	234	-0.2693	0.1617	0.0305
0.65	246	0.1989	0.1511	0.0303
0.65	258	-0.0088	0.1561	0.03
0.75	114	-0.4637	0.2316	0.0314
0.75	126	-0.0041	0.1785	0.03
0.75	138	-0.1187	0.1693	0.0301
0.75	150	0.1246	0.2116	0.0301
0.75	162	0.0301	0.1855	0.03
0.75	198	0.3052	0.2567	0.0306
0.75	210	-0.4101	0.2123	0.0311
0.75	222	-0.1808	0.1931	0.0302
0.75	234	-0.3128	0.1471	0.0306
0.75	246	-0.1567	0.1442	0.0302
0.75	258	-0.3338	0.1565	0.0307
0.75	270	0.1363	0.2116	0.0301
0.85	126	0.1981	0.2418	0.0303
0.85	138	0.1976	0.2259	0.0303
0.85	150	0.1284	0.2103	0.0301
0.85	162	-0.3092	0.2306	0.0306
0.85	174	0.1152	0.2659	0.0301
0.85	198	-0.0976	0.28	0.0301
0.85	210	0.0289	0.2797	0.03
0.85	222	0.2373	0.1868	0.0304
0.85	234	0.0535	0.1566	0.03
0.85	246	-0.1173	0.141	0.0301
0.85	258	-0.1364	0.1562	0.0301
0.85	270	-0.0629	0.2014	0.03
0.95	234	-0.2553	0.2545	0.0304
0.95	246	-0.631	0.2347	0.0325