CLAS Physics Database

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Measurement E151M1392

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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 :	0.0171 GeV²
W :	1445 GeV
ε :	0.6539
E_beam :	1.0539 GeV
ε_L:	0.0263

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	-1.579	0.7719	0.1806
0.25	42	-0.897	0.7481	0.1055
0.25	54	-1.3953	0.7938	0.1602
0.35	42	0.0556	0.5654	0.0306
0.35	54	-1.1717	0.5965	0.1355
0.35	66	1.1217	0.9283	0.13
0.45	30	0.0329	0.8177	0.0302
0.45	42	-0.4591	0.6033	0.0598
0.45	54	-0.699	0.5422	0.0844
0.45	66	1.486	0.7191	0.1703
0.45	222	-1.5897	0.7108	0.1818
0.45	234	-1.3589	0.6373	0.1562
0.45	246	-0.6175	0.6544	0.0758
0.45	258	0.117	0.8392	0.0328
0.55	30	-0.3343	0.7367	0.0482
0.55	42	-0.2039	0.6522	0.0378
0.55	54	0.2519	0.5967	0.0413
0.55	66	0.6405	0.8981	0.0782
0.55	150	0.4408	0.9076	0.0581
0.55	162	0.4218	0.7162	0.0562
0.55	174	-0.4969	0.8705	0.0636
0.55	210	-0.1058	0.7239	0.0323
0.55	222	-0.8202	0.6033	0.0973
0.55	234	-0.5142	0.5384	0.0653
0.55	246	-1.0831	0.4751	0.1258
0.55	258	-0.2984	0.6812	0.0451
0.65	150	0.159	0.6903	0.035
0.65	162	-0.9832	0.7729	0.1149
0.65	210	-1.8451	0.7683	0.2103
0.65	222	-0.1914	0.5325	0.037
0.65	234	-0.4506	0.5013	0.059
0.65	246	0.1591	0.4903	0.035
0.65	258	-0.4444	0.6399	0.0584
0.75	150	0.4947	0.7831	0.0633
0.75	162	-1.0733	0.7228	0.1247
0.75	210	1.0917	0.8604	0.1267
0.75	222	-0.4988	0.5833	0.0638
0.75	234	-0.025	0.5763	0.0301
0.75	246	-0.0674	0.5027	0.0309
0.75	258	0.3371	0.5813	0.0484
0.85	210	-0.7603	0.771	0.0909
0.85	222	-0.0495	0.6611	0.0305
0.85	234	-0.1955	0.5779	0.0372
0.85	246	-0.5682	0.487	0.0708
0.85	258	-0.5666	0.596	0.0706
0.95	234	-0.2454	0.6521	0.0408