CLAS Physics Database

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Measurement E151M2735

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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 :	0.0143 GeV²
W :	1355 GeV
ε :	0.8862
E_beam :	1.3383 GeV
ε_L:	0.0476

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
0.45	42	0.615	0.274	0.0324
0.55	222	-0.3454	0.2519	0.0308
0.55	234	-0.0923	0.2034	0.0301
0.55	246	0.0715	0.2043	0.03
0.55	258	-0.1951	0.2552	0.0303
0.65	138	0.2774	0.2341	0.0305
0.65	150	0.0883	0.2521	0.0301
0.65	162	-0.314	0.2439	0.0307
0.65	210	0.0824	0.2829	0.03
0.65	222	-0.4932	0.2034	0.0316
0.65	234	-0.1534	0.1911	0.0302
0.65	246	-0.1101	0.2309	0.0301
0.65	258	-0.056	0.2505	0.03
0.75	126	0.1057	0.2592	0.0301
0.75	138	0.0878	0.2195	0.0301
0.75	150	-0.065	0.2062	0.03
0.75	210	0.5596	0.2587	0.032
0.75	222	-0.257	0.2406	0.0304
0.75	234	-0.3982	0.1836	0.031
0.75	246	0.0024	0.2076	0.03
0.75	258	-0.1528	0.2273	0.0302
0.85	222	-0.1897	0.248	0.0302
0.85	234	0.3035	0.2141	0.0306
0.85	246	0.3335	0.177	0.0307
0.85	258	-0.0219	0.2558	0.03
0.35	42	-0.3675	0.3381	0.0309
0.45	42	-0.623	0.2328	0.0325
0.55	234	-0.5679	0.3135	0.0321
0.55	246	-0.2523	0.355	0.0304
0.65	138	0.5051	0.2793	0.0317
0.65	150	0.5882	0.261	0.0322
0.65	222	0.1336	0.3006	0.0301
0.65	234	-0.0249	0.2772	0.03
0.65	246	0.1622	0.3534	0.0302
0.75	126	0.4722	0.3277	0.0315
0.75	138	0.29	0.3585	0.0306
0.75	150	-0.1271	0.3568	0.0301
0.75	222	0.2976	0.2806	0.0306
0.75	234	0.1079	0.2357	0.0301
0.75	246	-0.0542	0.3106	0.03
0.75	258	0.4298	0.2956	0.0312
0.85	222	-0.0543	0.3887	0.03
0.85	234	-0.3134	0.245	0.0306
0.85	246	0.2662	0.289	0.0305
0.85	258	-0.4776	0.2352	0.0315