CLAS Physics Database

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Measurement E151M2699

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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 :	1295 GeV
ε :	0.9197
E_beam :	1.3383 GeV
ε_L:	0.0994

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	0.5666	0.2479	0.0321
0.25	42	-0.3103	0.2655	0.0306
0.35	42	-0.229	0.2871	0.0303
0.35	54	0.831	0.2059	0.0343
0.45	30	-0.5713	0.2423	0.0321
0.55	234	0.1933	0.3053	0.0302
0.55	246	-0.6402	0.189	0.0326
0.55	258	-0.3257	0.2866	0.0307
0.55	270	-0.2255	0.3147	0.0303
0.65	138	-0.0327	0.3345	0.03
0.65	150	0.1534	0.322	0.0302
0.65	222	-0.1524	0.2961	0.0302
0.65	234	-0.1239	0.2483	0.0301
0.65	246	-0.3566	0.2018	0.0308
0.65	258	0.1625	0.2303	0.0302
0.65	270	0.97	0.0805	0.0357
0.75	126	0.351	0.2305	0.0308
0.75	138	0.3745	0.2177	0.0309
0.75	150	-0.4292	0.2273	0.0312
0.75	162	0.6177	0.1842	0.0324
0.75	174	-0.5554	0.2564	0.032
0.75	198	0.3374	0.3401	0.0307
0.75	222	-0.2154	0.2755	0.0303
0.75	234	-0.0888	0.2139	0.0301
0.75	246	0.093	0.2235	0.0301
0.75	258	0.0167	0.2419	0.03
0.75	270	0.0497	0.2925	0.03
0.85	126	0.4087	0.3339	0.0311
0.85	138	-0.1765	0.3303	0.0302
0.85	150	-0.0266	0.2925	0.03
0.85	162	-0.6572	0.1991	0.0328
0.85	174	-0.0573	0.3859	0.03
0.85	210	-0.0944	0.3621	0.0301
0.85	222	0.2099	0.2982	0.0303
0.85	234	0.2144	0.2167	0.0303
0.85	246	-0.229	0.2061	0.0303
0.85	258	-0.4366	0.2111	0.0312
0.85	270	-0.2149	0.2649	0.0303
0.95	234	0.0541	0.4081	0.03
0.95	246	-0.4482	0.3464	0.0313
0.15	42	0.1301	0.2678	0.0301
0.25	30	0.3917	0.2718	0.031
0.25	42	-0.0794	0.2267	0.03
0.25	54	0.5662	0.237	0.0321
0.35	30	-0.1941	0.274	0.0303
0.35	42	-0.2668	0.2453	0.0305
0.35	54	-0.0337	0.2316	0.03
0.55	42	-0.2426	0.2683	0.0304
0.55	234	0.1384	0.2306	0.0301
0.55	246	0.0425	0.1809	0.03
0.55	258	-0.0855	0.1702	0.03
0.55	270	0.014	0.2563	0.03
0.65	126	0.6919	0.2141	0.033
0.65	138	0.1079	0.1883	0.0301
0.65	150	0.3297	0.2301	0.0307
0.65	222	0.0561	0.1805	0.03
0.65	234	-0.1566	0.16	0.0302
0.65	246	-0.2469	0.144	0.0304
0.65	258	-0.0691	0.1494	0.03
0.65	270	-0.419	0.1959	0.0311
0.75	114	-0.137	0.2703	0.0301
0.75	126	-0.0396	0.2046	0.03
0.75	138	-0.0071	0.1854	0.03
0.75	150	0.1742	0.1641	0.0302
0.75	162	0.0005	0.2015	0.03
0.75	174	-0.1212	0.2706	0.0301
0.75	186	-0.601	0.2548	0.0323
0.75	198	0.5613	0.2245	0.032
0.75	210	0.1714	0.2791	0.0302
0.75	222	0.2325	0.1891	0.0304
0.75	234	-0.0955	0.1446	0.0301
0.75	246	0.0112	0.1327	0.03
0.75	258	-0.0768	0.143	0.03
0.75	270	-0.0924	0.2227	0.0301
0.85	126	-0.1181	0.24	0.0301
0.85	138	0.018	0.2184	0.03
0.85	150	-0.2701	0.233	0.0305
0.85	162	0.1449	0.2063	0.0301
0.85	174	0.0422	0.2524	0.03
0.85	186	-0.1289	0.2341	0.0301
0.85	210	-0.1418	0.2449	0.0301
0.85	222	-0.1631	0.1764	0.0302
0.85	234	-0.2127	0.1761	0.0303
0.85	246	-0.0501	0.1408	0.03
0.85	258	-0.1917	0.1513	0.0302
0.85	270	-0.1215	0.2087	0.0301