CLAS Physics Database

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Measurement E151M2650

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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 :	0.0593 GeV²
W :	1205 GeV
ε :	0.939
E_beam :	1.3383 GeV
ε_L:	0.4923

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
0.55	270	-0.3781	0.1996	0.0309
0.55	282	0.1134	0.2103	0.0301
0.65	270	-0.0369	0.2098	0.03
0.65	282	0.1324	0.2395	0.0301
0.75	246	-0.3578	0.2686	0.0308
0.75	258	0.0361	0.2516	0.03
0.75	270	0.0657	0.2235	0.03
0.75	282	-0.1584	0.2813	0.0302
0.85	126	0.2385	0.2676	0.0304
0.85	138	0.205	0.2488	0.0303
0.85	150	-0.4324	0.2478	0.0312
0.85	162	0.1303	0.2535	0.0301
0.85	174	-0.2043	0.2605	0.0303
0.85	198	-0.0941	0.2697	0.0301
0.85	210	-0.0943	0.2725	0.0301
0.85	258	-0.0066	0.2624	0.03
0.85	270	-0.2992	0.2379	0.0306
0.95	126	-0.0455	0.2589	0.03
0.95	150	0.3634	0.2578	0.0309
0.95	162	-0.1478	0.2571	0.0301
0.95	174	-0.1149	0.2493	0.0301
0.95	186	0.1255	0.2454	0.0301
0.95	198	0.2075	0.229	0.0303
0.45	282	0.5235	0.2653	0.0318
0.55	270	-0.2039	0.3957	0.0303
0.55	282	0.1229	0.3313	0.0301
0.65	258	-0.3762	0.3101	0.0309
0.65	270	0.0515	0.3053	0.03
0.65	282	-0.3921	0.3567	0.031
0.75	258	-0.5648	0.1991	0.0321
0.75	270	0.3485	0.2683	0.0308
0.75	282	-0.2147	0.4275	0.0303
0.85	126	0.7863	0.1929	0.0339
0.85	138	0.6097	0.221	0.0324
0.85	150	0.3652	0.3313	0.0309
0.85	162	0.1045	0.3586	0.0301
0.85	174	-0.3813	0.3152	0.031
0.85	186	-0.497	0.2801	0.0316
0.85	210	-0.6194	0.327	0.0325
0.95	138	-0.7221	0.192	0.0333
0.95	150	-0.3719	0.3081	0.0309
0.95	162	0.0858	0.3243	0.03
0.95	174	0.1247	0.2932	0.0301
0.95	186	0.5594	0.3921	0.032
0.95	198	-0.7575	0.2153	0.0336
0.95	210	-0.8375	0.183	0.0344