CLAS Physics Database

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Measurement E151M2587

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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 :	0.0023 GeV²
W :	1415 GeV
ε :	0.7262
E_beam :	1.0539 GeV
ε_L:	0.0046

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
0.35	42	0.3448	0.2491	0.0308
0.35	54	0.0012	0.1892	0.03
0.45	42	-0.0388	0.1609	0.03
0.45	54	0.0406	0.1848	0.03
0.45	66	0.1585	0.2192	0.0302
0.45	150	0.3898	0.2269	0.031
0.45	210	0.1152	0.2054	0.0301
0.45	222	-0.2758	0.1699	0.0305
0.45	234	0.1955	0.1787	0.0303
0.45	246	-0.3733	0.186	0.0309
0.55	30	-0.1393	0.1776	0.0301
0.55	42	0.0465	0.1406	0.03
0.55	54	0.3313	0.1201	0.0307
0.55	66	-0.2103	0.1937	0.0303
0.55	150	-0.3989	0.1725	0.031
0.55	162	-0.1753	0.1875	0.0302
0.55	174	-0.1821	0.205	0.0302
0.55	186	0.1692	0.2251	0.0302
0.55	198	0.5277	0.214	0.0318
0.55	210	0.1325	0.1802	0.0301
0.55	222	0.143	0.1674	0.0301
0.55	234	-0.0586	0.1257	0.03
0.55	246	-0.016	0.1623	0.03
0.65	18	0.3851	0.2118	0.031
0.65	30	0.0448	0.1654	0.03
0.65	42	0.2071	0.1493	0.0303
0.65	54	-0.1464	0.1395	0.0301
0.65	66	-0.1324	0.2092	0.0301
0.65	138	-0.0687	0.2239	0.03
0.65	150	-0.2639	0.1778	0.0305
0.65	162	0.2306	0.2331	0.0304
0.65	174	0.0659	0.1883	0.03
0.65	186	0.0099	0.2127	0.03
0.65	198	-0.2176	0.2521	0.0303
0.65	210	-0.3432	0.1856	0.0308
0.65	222	0.2882	0.1322	0.0305
0.65	234	-0.0636	0.1273	0.03
0.65	246	0.0142	0.1481	0.03
0.75	42	-0.1993	0.2032	0.0303
0.75	138	-0.338	0.2322	0.0308
0.75	150	0.0251	0.2	0.03
0.75	162	0.0224	0.2254	0.03
0.75	174	-0.1493	0.2309	0.0301
0.75	210	-0.1214	0.1749	0.0301
0.75	222	0.1242	0.1452	0.0301
0.75	234	0.2779	0.1103	0.0305
0.75	246	-0.1435	0.1549	0.0301
0.85	210	-0.1543	0.1712	0.0302
0.85	222	0.1975	0.142	0.0303
0.85	234	0.0079	0.1373	0.03
0.85	246	-0.0144	0.1701	0.03