CLAS Physics Database

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Measurement E151M1248

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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_LL,

Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.0205 GeV²
W :	1235 GeV
ε :	0.9092
E_beam :	1.0539 GeV
ε_L:	0.1483

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LL,
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_LL	Stat. error	Syst. error
0.25	30	0.0013	0.6212	0.03
0.25	42	0.482	0.5442	0.0621
0.25	54	-0.0456	0.4878	0.0304
0.35	30	-0.1637	0.6064	0.0352
0.35	42	-0.1888	0.4435	0.0368
0.35	54	0.5443	0.4938	0.0683
0.45	42	0.2102	0.4174	0.0382
0.45	54	-0.3816	0.4436	0.0525
0.45	66	-0.1407	0.5999	0.0339
0.45	246	1.1269	0.6151	0.1306
0.45	258	-0.2778	0.5342	0.0434
0.45	270	-0.7803	0.4057	0.093
0.45	282	-0.6859	0.4205	0.083
0.55	234	-0.1253	0.6561	0.0332
0.55	246	-0.9459	0.3702	0.1108
0.55	258	0.4361	0.3194	0.0576
0.55	270	0.7475	0.3079	0.0895
0.55	282	0.0846	0.3856	0.0315
0.65	150	0.0777	0.6092	0.0313
0.65	162	-0.0355	0.627	0.0303
0.65	174	0.5356	0.6228	0.0674
0.65	186	0.242	0.5898	0.0406
0.65	198	-1.0242	0.5424	0.1193
0.65	234	0.0617	0.4318	0.0308
0.65	246	-0.3725	0.302	0.0516
0.65	258	-0.2369	0.2562	0.0402
0.65	270	-0.1432	0.2612	0.0341
0.65	282	0.7586	0.3724	0.0907
0.75	138	-0.4175	0.5824	0.0558
0.75	150	0.5521	0.4792	0.0691
0.75	162	-0.3566	0.4174	0.0502
0.75	174	-0.0912	0.368	0.0317
0.75	186	-0.9243	0.3476	0.1085
0.75	198	0.0628	0.3893	0.0308
0.75	210	0.9935	0.4544	0.116
0.75	222	-0.1846	0.4266	0.0365
0.75	234	0.0546	0.3751	0.0306
0.75	246	0.5652	0.2749	0.0704
0.75	258	-0.052	0.2665	0.0306
0.75	270	0.1131	0.3355	0.0326
0.75	282	0.1432	0.4715	0.0341
0.85	138	0.8911	0.5629	0.1049
0.85	150	0.5629	0.413	0.0702
0.85	162	-0.4413	0.4101	0.0581
0.85	174	0.5462	0.3405	0.0685
0.85	186	-0.1983	0.4043	0.0374
0.85	198	0.7903	0.3994	0.0941
0.85	210	0.1449	0.506	0.0342
0.85	222	-0.6396	0.4941	0.0781
0.85	234	-0.0651	0.3894	0.0309
0.85	246	-0.118	0.3842	0.0328
0.85	258	0.3332	0.3622	0.0481
0.85	270	0.4168	0.531	0.0558