CLAS Physics Database

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Measurement E151M3618

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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 :	0.101 GeV²
W :	1805 GeV
ε :	0.8444
E_beam :	2.999 GeV
ε_L:	0.0489

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
0.55	114	0.2233	0.2587	0.0303
0.65	126	0.1341	0.2725	0.0301
0.65	198	-0.0296	0.2359	0.03
0.65	282	-0.4635	0.2219	0.0314
0.75	102	-0.6248	0.1884	0.0325
0.75	114	0.2041	0.2581	0.0303
0.75	126	-0.5433	0.244	0.0319
0.75	186	0.0675	0.2539	0.03
0.75	198	0.3484	0.2456	0.0308
0.75	210	-0.0972	0.2345	0.0301
0.75	222	-0.1677	0.2425	0.0302
0.75	234	-0.1653	0.2692	0.0302
0.75	270	0.1785	0.2093	0.0302
0.75	282	0.1662	0.2193	0.0302
0.85	90	0.1404	0.2454	0.0301
0.85	102	-0.3859	0.1931	0.031
0.85	114	-0.289	0.2013	0.0306
0.85	126	0.1047	0.2194	0.0301
0.85	174	-0.053	0.2319	0.03
0.85	186	0.0589	0.2256	0.03
0.85	198	0.1743	0.1805	0.0302
0.85	210	0.1893	0.1819	0.0302
0.85	222	-0.3462	0.2053	0.0308
0.85	234	-0.2846	0.2251	0.0305
0.85	282	-0.3715	0.2321	0.0309
0.95	114	0.3556	0.2421	0.0308
0.95	198	0.1172	0.2531	0.0301
0.95	210	0.008	0.2384	0.03