CLAS Physics Database

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Measurement E151M2599

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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 :	0.0348 GeV²
W :	1415 GeV
ε :	0.6858
E_beam :	1.0539 GeV
ε_L:	0.0628

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
0.25	42	-0.1332	0.1701	0.0301
0.25	54	-0.4059	0.1962	0.0311
0.35	30	0.0454	0.2361	0.03
0.35	42	0.2342	0.1739	0.0304
0.35	54	-0.2303	0.1634	0.0304
0.45	30	0.2816	0.2289	0.0305
0.45	42	-0.1263	0.1576	0.0301
0.45	54	0.0553	0.2019	0.03
0.45	234	-0.2321	0.2164	0.0304
0.45	246	0.2531	0.2188	0.0304
0.45	258	-0.1627	0.2403	0.0302
0.55	42	-0.2312	0.1901	0.0304
0.55	54	-0.3609	0.2101	0.0309
0.55	150	0.0213	0.2277	0.03
0.55	222	-0.1236	0.224	0.0301
0.55	234	-0.0106	0.1904	0.03
0.55	246	-0.3573	0.1661	0.0308
0.55	258	0.0421	0.1952	0.03
0.65	138	0.2538	0.2374	0.0304
0.65	150	-0.4904	0.1692	0.0316
0.65	162	-0.1118	0.2326	0.0301
0.65	222	0.1562	0.1867	0.0302
0.65	234	-0.1729	0.1342	0.0302
0.65	246	0.2253	0.1394	0.0303
0.65	258	-0.0714	0.1717	0.03
0.65	270	-0.0119	0.2608	0.03
0.75	138	0.381	0.1839	0.031
0.75	150	0.3737	0.1972	0.0309
0.75	162	-0.4283	0.2236	0.0312
0.75	174	-0.1487	0.2209	0.0301
0.75	210	-0.0331	0.2529	0.03
0.75	222	0.0167	0.199	0.03
0.75	234	-0.1739	0.1786	0.0302
0.75	246	-0.2667	0.1383	0.0305
0.75	258	-0.1651	0.1443	0.0302
0.75	270	0.2693	0.2041	0.0305
0.85	138	0.1582	0.2522	0.0302
0.85	150	-0.0064	0.2531	0.03
0.85	222	-0.5689	0.1957	0.0321
0.85	234	0.0242	0.1462	0.03
0.85	246	-0.1432	0.1446	0.0301
0.85	258	-0.1183	0.154	0.0301
0.85	270	0.0453	0.1962	0.03
0.95	138	-0.0595	0.2486	0.03
0.95	234	-0.2774	0.2366	0.0305
0.95	246	-0.275	0.2214	0.0305
0.95	258	-0.1827	0.2298	0.0302