CLAS Physics Database

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Measurement E151M2808

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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 :	0.205 GeV²
W :	1445 GeV
ε :	0.655
E_beam :	1.3383 GeV
ε_L:	0.237

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
0.65	126	-0.3374	0.4311	0.0307
0.65	246	-0.0531	0.3665	0.03
0.75	222	0.3004	0.3864	0.0306
0.75	234	0.4971	0.3047	0.0316
0.75	246	-0.2191	0.3074	0.0303
0.75	258	-0.7653	0.198	0.0337
0.75	270	-0.0625	0.3239	0.03
0.85	234	0.3929	0.3618	0.031
0.85	246	-0.1205	0.3394	0.0301
0.85	258	-0.0286	0.3878	0.03
0.85	270	-0.1293	0.3628	0.0301
0.85	282	0.1994	0.3961	0.0303
0.95	78	0.0168	0.3483	0.03
0.95	246	-0.5672	0.3358	0.0321
0.95	270	-0.5584	0.389	0.032
0.95	282	-0.3231	0.3879	0.0307
0.55	258	-0.321	0.2688	0.0307
0.65	258	-0.0296	0.279	0.03
0.75	126	0.0312	0.2296	0.03
0.75	138	0.4684	0.2372	0.0314
0.75	222	-0.0604	0.2717	0.03
0.75	258	-0.324	0.2284	0.0307
0.75	270	0.0761	0.2811	0.03
0.85	246	-0.1635	0.258	0.0302
0.85	270	-0.0288	0.2783	0.03
0.85	282	-0.2907	0.2397	0.0306
0.95	282	-0.137	0.2791	0.0301