CLAS Physics Database

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Measurement E151M2762

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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 :	0.0496 GeV²
W :	1385 GeV
ε :	0.8389
E_beam :	1.3383 GeV
ε_L:	0.1239

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	42	-0.5224	0.2668	0.0318
0.55	234	0.0229	0.3448	0.03
0.55	246	-0.2521	0.3715	0.0304
0.55	258	0.146	0.3708	0.0301
0.65	126	0.4583	0.304	0.0314
0.65	138	0.7872	0.1437	0.0339
0.65	222	0.3177	0.3079	0.0307
0.65	234	0.2915	0.2745	0.0306
0.65	246	-0.2421	0.2366	0.0304
0.65	258	-0.4319	0.2577	0.0312
0.75	114	0.7835	0.1823	0.0338
0.75	126	-0.1748	0.2781	0.0302
0.75	138	-0.0639	0.2736	0.03
0.75	150	-0.1588	0.3482	0.0302
0.75	162	-0.2494	0.397	0.0304
0.75	210	0.8447	0.1641	0.0344
0.75	222	-0.0839	0.3078	0.03
0.75	234	0.1176	0.311	0.0301
0.75	246	-0.0455	0.2944	0.03
0.75	258	-0.3327	0.2461	0.0307
0.75	270	0.4806	0.3099	0.0315
0.85	126	0.1764	0.2909	0.0302
0.85	138	-0.063	0.3764	0.03
0.85	162	0.4591	0.2462	0.0314
0.85	222	0.2324	0.2697	0.0304
0.85	234	-0.2143	0.3125	0.0303
0.85	246	-0.1908	0.2688	0.0302
0.85	258	-0.2671	0.2465	0.0305
0.85	270	0.5171	0.2212	0.0317
0.95	234	0.2428	0.2934	0.0304
0.95	246	0.0799	0.2965	0.03
0.95	258	-0.0067	0.302	0.03
0.95	270	0.3378	0.3198	0.0308
0.15	42	-0.0403	0.2736	0.03
0.25	42	-0.0548	0.2543	0.03
0.45	30	-0.1866	0.2652	0.0302
0.55	246	0.2664	0.2158	0.0305
0.55	258	-0.3105	0.2282	0.0306
0.65	126	-0.4338	0.2507	0.0312
0.65	138	0.1404	0.1915	0.0301
0.65	150	0.2043	0.2113	0.0303
0.65	222	-0.1484	0.2127	0.0301
0.65	234	0.0064	0.2052	0.03
0.65	246	0.0392	0.1648	0.03
0.65	258	0.1123	0.1974	0.0301
0.65	270	-0.0749	0.2478	0.03
0.75	114	0.0464	0.2636	0.03
0.75	126	0.2415	0.1931	0.0304
0.75	138	0.1214	0.1723	0.0301
0.75	150	0.0691	0.2367	0.03
0.75	162	0.3896	0.218	0.031
0.75	222	-0.1967	0.1823	0.0303
0.75	234	0.097	0.1926	0.0301
0.75	246	-0.1235	0.1628	0.0301
0.75	258	0.0212	0.1945	0.03
0.75	270	-0.1462	0.2779	0.0301
0.85	126	0.2883	0.2495	0.0305
0.85	138	0.0712	0.2553	0.03
0.85	150	-0.0023	0.2501	0.03
0.85	162	0.0836	0.2544	0.03
0.85	222	-0.0877	0.24	0.0301
0.85	234	-0.173	0.1841	0.0302
0.85	246	-0.3921	0.1669	0.031
0.85	258	0.2529	0.1759	0.0304
0.85	270	0.0695	0.245	0.03
0.95	102	-0.0086	0.2518	0.03
0.95	114	0.5558	0.2041	0.032
0.95	222	0.3367	0.2607	0.0307
0.95	234	0.0259	0.244	0.03
0.95	246	-0.1709	0.2126	0.0302
0.95	258	0.0778	0.2285	0.03