CLAS Physics Database

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Measurement E151M3476

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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 :	0.496 GeV²
W :	1445 GeV
ε :	0.903
E_beam :	2.999 GeV
ε_L:	0.5435

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
0.15	294	0.3442	0.2359	0.0308
0.45	90	-0.6249	0.2007	0.0325
0.45	102	-0.4122	0.2424	0.0311
0.55	78	0.1492	0.2168	0.0301
0.55	90	-0.5532	0.2149	0.032
0.55	102	0.0036	0.2184	0.03
0.65	54	-0.1621	0.2705	0.0302
0.65	78	0.1782	0.2065	0.0302
0.65	90	-0.1521	0.2196	0.0302
0.65	102	-0.298	0.2555	0.0306
0.65	114	0.2216	0.2403	0.0303
0.65	258	0.0272	0.2576	0.03
0.65	270	-0.1815	0.2475	0.0302
0.75	54	0.0718	0.2596	0.03
0.75	78	-0.0046	0.2154	0.03
0.75	90	0.0202	0.2208	0.03
0.75	102	0.2036	0.215	0.0303
0.75	114	0.3103	0.2143	0.0306
0.75	222	-0.2743	0.2624	0.0305
0.75	246	0.2213	0.2347	0.0303
0.75	258	-0.3837	0.1941	0.031
0.75	270	-0.2687	0.1859	0.0305
0.75	282	0.0894	0.2477	0.0301
0.85	54	0.1695	0.2057	0.0302
0.85	78	-0.1448	0.2415	0.0301
0.85	90	-0.0773	0.2151	0.03
0.85	102	-0.1321	0.2251	0.0301
0.85	210	0.138	0.2424	0.0301
0.85	222	-0.1122	0.2341	0.0301
0.85	234	0.1104	0.2381	0.0301
0.85	246	0.1223	0.2058	0.0301
0.85	258	-0.2376	0.2406	0.0304
0.85	270	-0.0856	0.242	0.03
0.85	282	0.115	0.2275	0.0301
0.85	294	-0.1943	0.2298	0.0303
0.85	306	0.1626	0.2003	0.0302
0.85	318	-0.1428	0.2047	0.0301
0.95	234	0.0559	0.2635	0.03
0.95	258	0.3543	0.2147	0.0308
0.95	282	0.0353	0.2563	0.03
0.95	306	0.1105	0.2596	0.0301
0.95	318	-0.1297	0.2146	0.0301
0.95	330	0.0891	0.2514	0.0301