CLAS Physics Database

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Measurement E151M3499

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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 :	0.4155 GeV²
W :	1505 GeV
ε :	0.9
E_beam :	2.999 GeV
ε_L:	0.4064

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
0.15	282	0.4121	0.2343	0.0311
0.15	294	-0.1973	0.2662	0.0303
0.15	306	0.0422	0.2659	0.03
0.25	282	0.0716	0.2326	0.03
0.35	90	-0.2482	0.2674	0.0304
0.35	282	-0.3204	0.2439	0.0307
0.35	294	0.3362	0.2521	0.0307
0.45	102	-0.3732	0.2444	0.0309
0.55	78	0.3945	0.2161	0.031
0.55	90	0.0948	0.2039	0.0301
0.55	102	0.0384	0.2136	0.03
0.55	114	0.4463	0.2029	0.0313
0.55	282	-0.1128	0.2542	0.0301
0.55	306	-0.4536	0.2141	0.0313
0.65	78	0.0468	0.2392	0.03
0.65	90	-0.0274	0.1989	0.03
0.65	102	-0.4	0.2149	0.031
0.65	114	0.0112	0.2104	0.03
0.65	126	-0.2276	0.2584	0.0303
0.65	246	-0.4658	0.2108	0.0314
0.65	258	0.024	0.2196	0.03
0.65	270	-0.4742	0.2448	0.0315
0.75	54	-0.4863	0.198	0.0315
0.75	66	0.0325	0.2358	0.03
0.75	78	0.2514	0.2746	0.0304
0.75	90	0.0753	0.1948	0.03
0.75	102	-0.1582	0.2023	0.0302
0.75	114	0.2025	0.212	0.0303
0.75	126	-0.0041	0.2169	0.03
0.75	198	0.2478	0.2446	0.0304
0.75	222	0.3033	0.2628	0.0306
0.75	234	-0.2873	0.2409	0.0305
0.75	246	-0.0974	0.2004	0.0301
0.75	258	0.0032	0.2149	0.03
0.75	270	-0.0035	0.2117	0.03
0.85	54	-0.3547	0.2118	0.0308
0.85	66	0.15	0.2182	0.0301
0.85	102	0.082	0.1927	0.03
0.85	114	-0.044	0.2463	0.03
0.85	198	-0.0007	0.2467	0.03
0.85	210	-0.0348	0.24	0.03
0.85	222	-0.3732	0.2074	0.0309
0.85	234	-0.199	0.2264	0.0303
0.85	246	-0.3007	0.1931	0.0306
0.85	258	0.0642	0.1817	0.03
0.85	270	0.2763	0.1627	0.0305
0.85	282	-0.3083	0.1776	0.0306
0.85	294	-0.1428	0.1993	0.0301
0.85	306	-0.1691	0.2256	0.0302
0.95	222	0.5371	0.2103	0.0319
0.95	234	-0.0258	0.2662	0.03
0.95	246	0.2928	0.2467	0.0306
0.95	258	-0.0677	0.2061	0.03
0.95	270	0.1034	0.191	0.0301
0.95	282	-0.2841	0.2062	0.0305
0.95	294	-0.1863	0.2074	0.0302
0.95	306	0.1538	0.1814	0.0302
0.95	318	0.364	0.1782	0.0309
0.95	330	0.4614	0.2451	0.0314
0.95	342	0.2292	0.2536	0.0303