CLAS Physics Database

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Measurement E151M3607

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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 :	0.1205 GeV²
W :	1775 GeV
ε :	0.8551
E_beam :	2.999 GeV
ε_L:	0.0635

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	126	0.1744	0.2496	0.0302
0.45	270	0.2501	0.2678	0.0304
0.45	282	-0.3609	0.2403	0.0309
0.55	126	-0.1092	0.2894	0.0301
0.55	138	0.4929	0.2339	0.0316
0.55	210	-0.4272	0.2245	0.0312
0.65	114	0.0881	0.2301	0.0301
0.65	126	-0.0753	0.2325	0.03
0.65	138	-0.2069	0.2304	0.0303
0.65	186	0.3715	0.2694	0.0309
0.65	198	-0.3741	0.2535	0.0309
0.65	210	-0.0498	0.2135	0.03
0.65	222	-0.17	0.2343	0.0302
0.65	270	0.4608	0.2119	0.0314
0.65	282	-0.0956	0.2097	0.0301
0.65	294	-0.2975	0.256	0.0306
0.75	90	-0.0098	0.2772	0.03
0.75	102	-0.2668	0.2144	0.0305
0.75	126	0.0425	0.2716	0.03
0.75	138	0.0489	0.2693	0.03
0.75	186	0.2416	0.2644	0.0304
0.75	198	-0.1001	0.2123	0.0301
0.75	210	0.2392	0.1888	0.0304
0.75	222	-0.1735	0.2293	0.0302
0.75	234	-0.3039	0.2733	0.0306
0.75	258	0.0422	0.2449	0.03
0.75	270	-0.4271	0.2206	0.0312
0.75	282	-0.3563	0.1688	0.0308
0.75	294	-0.4033	0.2252	0.0311
0.85	90	-0.2277	0.1848	0.0303
0.85	102	-0.0746	0.1771	0.03
0.85	114	0.0388	0.1731	0.03
0.85	126	0.2959	0.1905	0.0306
0.85	174	0.2155	0.188	0.0303
0.85	186	0.284	0.1736	0.0305
0.85	198	-0.2744	0.1943	0.0305
0.85	210	-0.1244	0.1705	0.0301
0.85	222	0.4363	0.171	0.0312
0.85	234	-0.0918	0.2055	0.0301
0.85	246	-0.3518	0.2094	0.0308
0.95	114	-0.0252	0.2675	0.03
0.95	186	0.0309	0.2293	0.03
0.95	198	0.0745	0.255	0.03
0.95	210	-0.1406	0.2255	0.0301
0.95	222	0.0951	0.2331	0.0301
0.95	234	-0.2615	0.252	0.0305
0.95	246	0.1849	0.2446	0.0302