CLAS Physics Database

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Measurement E151M2720

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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 :	0.0291 GeV²
W :	1325 GeV
ε :	0.8971
E_beam :	1.3383 GeV
ε_L:	0.1126

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	30	-0.2321	0.3868	0.0304
0.15	42	0.0581	0.2185	0.0303
0.25	30	0.4723	0.1481	0.0325
0.25	42	-0.1642	0.1863	0.0304
0.25	54	-0.7756	0.1146	0.0341
0.35	30	-0.7599	0.1764	0.0336
0.35	42	0.1744	0.1734	0.0303
0.35	54	-0.1917	0.2077	0.0307
0.45	30	0.1846	0.1986	0.0306
0.45	42	0.2599	0.1871	0.0309
0.55	30	-0.4103	0.2385	0.0311
0.55	42	-0.119	0.2079	0.0303
0.55	234	-0.2238	0.1634	0.0304
0.55	246	0.1818	0.1558	0.0302
0.55	258	-0.086	0.1499	0.0301
0.55	270	0.0971	0.1957	0.0303
0.65	114	-0.0025	0.2215	0.0301
0.65	126	0.118	0.1727	0.0301
0.65	138	0.3285	0.1448	0.031
0.65	150	0.0612	0.1859	0.0301
0.65	162	0.4767	0.3235	0.0315
0.65	210	0.3691	0.3679	0.0309
0.65	222	-0.1122	0.1527	0.0301
0.65	234	-0.0815	0.1213	0.0301
0.65	246	0.1374	0.1126	0.0306
0.65	258	-0.1569	0.1172	0.0305
0.65	270	-0.0185	0.176	0.0301
0.75	114	0.1168	0.1905	0.0302
0.75	126	0.0861	0.1506	0.0301
0.75	138	-0.0409	0.1237	0.0307
0.75	150	-0.2239	0.1508	0.0304
0.75	162	0.1726	0.1648	0.0303
0.75	174	0.0832	0.1768	0.0304
0.75	210	0.2582	0.1595	0.0318
0.75	222	-0.2161	0.1493	0.0303
0.75	234	0.0601	0.125	0.0301
0.75	246	-0.0934	0.1102	0.0301
0.75	258	-0.0972	0.1233	0.0301
0.75	270	-0.2071	0.1476	0.0306
0.85	114	0.0632	0.2396	0.03
0.85	126	-0.3097	0.1638	0.0308
0.85	138	0.0479	0.155	0.0302
0.85	150	0.057	0.1622	0.0301
0.85	162	0.2688	0.1759	0.0305
0.85	174	0.083	0.1685	0.0305
0.85	198	-0.0259	0.3829	0.03
0.85	210	0.0191	0.1978	0.0304
0.85	222	-0.1679	0.1406	0.0313
0.85	234	-0.1406	0.1387	0.0301
0.85	246	-0.0146	0.1241	0.03
0.85	258	-0.0467	0.1204	0.0302
0.85	270	0.139	0.1494	0.0302
0.95	114	-0.2517	0.3173	0.0304
0.95	126	0.1586	0.1924	0.0302
0.95	138	-0.8059	0.1661	0.0341
0.95	210	0.2866	0.3521	0.0305
0.95	222	-0.0406	0.4096	0.03
0.95	234	-0.1826	0.178	0.0312
0.95	246	-0.253	0.1567	0.0305
0.95	258	-0.4354	0.1455	0.0321