CLAS Physics Database

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Measurement E151M2745

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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 :	0.0844 GeV²
W :	1355 GeV
ε :	0.84
E_beam :	1.3383 GeV
ε_L:	0.2309

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	258	-0.7527	0.126	0.0338
0.55	270	0.0413	0.1838	0.031
0.65	114	-0.2466	0.2739	0.0304
0.65	126	-0.0266	0.2155	0.0301
0.65	138	0.28	0.1653	0.0308
0.65	234	-0.1877	0.1819	0.0306
0.65	246	0.1354	0.1698	0.0302
0.65	258	0.0211	0.1597	0.0304
0.65	270	0.0008	0.1834	0.0301
0.75	114	-0.298	0.1954	0.0308
0.75	126	0.1524	0.1495	0.0303
0.75	138	0.0507	0.166	0.0301
0.75	150	0.1321	0.2326	0.0301
0.75	162	-0.4082	0.2491	0.0311
0.75	222	-0.6907	0.1333	0.0331
0.75	234	-0.2133	0.1465	0.0304
0.75	246	-0.0611	0.154	0.03
0.75	258	0.0569	0.1591	0.0301
0.75	270	-0.062	0.1627	0.03
0.75	282	0.2932	0.1957	0.0314
0.85	114	-0.244	0.1704	0.0307
0.85	126	0.2941	0.1443	0.0306
0.85	138	0.1349	0.1592	0.0306
0.85	150	-0.3204	0.149	0.031
0.85	162	-0.2322	0.2456	0.0304
0.85	174	-0.7884	0.1665	0.0339
0.85	222	-0.0468	0.1788	0.0306
0.85	234	0.1009	0.1683	0.0301
0.85	246	-0.0051	0.1414	0.0303
0.85	258	-0.0588	0.148	0.0301
0.85	270	-0.0097	0.1501	0.0303
0.85	282	-0.2869	0.1278	0.0316
0.95	78	0.0509	0.2778	0.03
0.95	90	-0.02	0.1795	0.0301
0.95	102	0.2518	0.1849	0.0304
0.95	114	0.6759	0.1428	0.0331
0.95	138	0.4153	0.3007	0.0311
0.95	222	0.4268	0.2491	0.0312
0.95	234	-0.1242	0.1914	0.0308
0.95	246	-0.2396	0.1594	0.031
0.95	258	-0.2889	0.1563	0.0312
0.95	270	0.0226	0.1685	0.0302
0.95	282	0.0768	0.205	0.0302