CLAS Physics Database

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Measurement E151M2652

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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 :	0.0844 GeV²
W :	1205 GeV
ε :	0.9265
E_beam :	1.3383 GeV
ε_L:	0.6401

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	282	-0.0621	0.189	0.0306
0.55	270	0.1675	0.2157	0.0305
0.55	282	-0.2585	0.1816	0.0307
0.65	270	0.7655	0.2109	0.0337
0.65	282	0.3551	0.2919	0.0308
0.75	258	0.2955	0.3263	0.0306
0.75	270	-0.1841	0.2944	0.0302
0.75	282	0.2639	0.3095	0.0305
0.85	126	0.8487	0.1622	0.0345
0.85	138	-0.0285	0.3605	0.03
0.95	114	-0.202	0.3778	0.0303
0.95	138	-0.5452	0.2948	0.0319
0.95	150	-0.6336	0.235	0.0326
0.95	162	0.2328	0.3141	0.0304
0.95	174	0.4231	0.3008	0.0312
0.95	186	-0.0652	0.3479	0.03
0.95	198	-0.0384	0.3499	0.03
0.55	294	-0.2402	0.261	0.0304
0.65	270	-0.0261	0.2339	0.03
0.65	282	-0.186	0.2275	0.0302
0.75	258	-0.1642	0.261	0.0302
0.75	270	0.2563	0.1946	0.0304
0.95	114	-0.1479	0.2727	0.0301
0.95	126	0.0505	0.2525	0.03
0.95	138	-0.009	0.2312	0.03
0.95	150	0.0022	0.2423	0.03
0.95	162	-0.0752	0.2237	0.03
0.95	174	-0.5592	0.2306	0.032
0.95	186	-0.0767	0.2668	0.03