CLAS Physics Database

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Measurement E151M3220

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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 :	1355 GeV
ε :	0.9585
E_beam :	2.2596 GeV
ε_L:	0.1657

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	66	-0.0179	0.2229	0.03
0.35	78	0.1068	0.1723	0.0301
0.45	78	0.0675	0.2463	0.03
0.45	294	-0.3842	0.2287	0.031
0.55	78	-0.0371	0.2447	0.03
0.65	78	0.2862	0.2523	0.0305
0.65	114	0.5822	0.2305	0.0322
0.65	246	-0.1174	0.2046	0.0301
0.65	258	-0.2993	0.2267	0.0306
0.75	102	0.1464	0.2671	0.0301
0.75	114	-0.2388	0.2246	0.0304
0.75	126	-0.7255	0.1727	0.0333
0.75	138	0.0369	0.2515	0.03
0.75	150	0.3412	0.2365	0.0308
0.75	222	-0.4397	0.2284	0.0313
0.75	234	0.0645	0.2089	0.03
0.75	246	-0.3826	0.1808	0.031
0.75	258	0.0388	0.2131	0.03
0.75	270	-0.1006	0.2531	0.0301
0.85	114	-0.1292	0.2282	0.0301
0.85	126	0.0662	0.2098	0.03
0.85	138	-0.2538	0.247	0.0304
0.85	222	0.3282	0.247	0.0307
0.85	234	-0.4245	0.188	0.0312
0.85	246	0.2917	0.2035	0.0306
0.85	258	-0.1238	0.1854	0.0301
0.85	270	0.0999	0.2583	0.0301
0.95	234	0.1362	0.265	0.0301
0.35	294	0.0203	0.2459	0.03
0.45	66	0.4114	0.2132	0.0311
0.45	78	-0.1963	0.2401	0.0303
0.45	282	0.2226	0.2603	0.0303
0.65	114	0.1954	0.2381	0.0303
0.65	126	0.1276	0.2528	0.0301
0.65	246	-0.1361	0.1973	0.0301
0.65	258	-0.5613	0.2178	0.032
0.75	102	0.2249	0.2157	0.0303
0.75	114	0.0187	0.2264	0.03
0.75	126	-0.2744	0.2095	0.0305
0.75	138	-0.0664	0.2403	0.03
0.75	234	0.0212	0.208	0.03
0.75	246	-0.1185	0.1701	0.0301
0.75	258	0.1544	0.2322	0.0302
0.85	114	0.2463	0.2238	0.0304
0.85	126	0.3604	0.2197	0.0309
0.85	138	-0.0357	0.2383	0.03
0.85	150	0.4284	0.2053	0.0312
0.85	234	-0.397	0.2061	0.031
0.85	246	0.151	0.1897	0.0302
0.85	258	0.2454	0.1602	0.0304
0.85	270	-0.1198	0.2251	0.0301