CLAS Physics Database

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Measurement E151M2649

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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 :	0.0496 GeV²
W :	1205 GeV
ε :	0.9438
E_beam :	1.3383 GeV
ε_L:	0.4272

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	-0.0204	0.1949	0.0301
0.55	270	-0.0671	0.1779	0.0307
0.55	282	-0.2704	0.201	0.0305
0.65	258	-0.1207	0.1835	0.0304
0.65	270	-0.2145	0.161	0.0304
0.65	282	0.3285	0.1525	0.0307
0.75	258	0.0103	0.1772	0.0305
0.75	270	-0.1639	0.1977	0.0303
0.85	114	-0.7599	0.1743	0.0336
0.85	126	0.4395	0.1809	0.0313
0.85	138	0.0809	0.1679	0.0313
0.85	150	0.082	0.2095	0.0301
0.85	162	0.0918	0.1638	0.0302
0.85	174	-0.2089	0.1846	0.0303
0.85	186	-0.1708	0.1789	0.0304
0.85	198	0.2156	0.1809	0.0304
0.85	210	0.3159	0.1794	0.0308
0.95	138	0.0879	0.2785	0.0301
0.95	150	-0.1003	0.2339	0.0301
0.95	162	-0.6256	0.2482	0.0325
0.95	174	0.1766	0.2303	0.0302
0.95	186	-0.0548	0.2537	0.03
0.95	198	-0.3755	0.2601	0.0309
0.85	270	-0.1711	0.3595	0.0302
0.95	138	0.3728	0.2746	0.0309
0.95	150	-0.2448	0.3611	0.0304
0.95	162	0.452	0.2417	0.0313
0.95	174	0.1992	0.3552	0.0303
0.95	186	0.0497	0.31	0.03
0.95	198	-0.0465	0.3116	0.03