CLAS Physics Database

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Measurement E151M2497

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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 :	0.0593 GeV²
W :	1265 GeV
ε :	0.8504
E_beam :	1.0539 GeV
ε_L:	0.2924

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
0.05	42	-0.3142	0.224	0.0307
0.15	42	-0.1085	0.216	0.0301
0.25	30	-0.0831	0.2277	0.03
0.25	42	0.1564	0.2037	0.0302
0.25	54	-0.1667	0.2303	0.0302
0.35	42	-0.0524	0.2018	0.03
0.35	54	-0.5497	0.1805	0.032
0.45	270	0.1509	0.2379	0.0302
0.45	282	-0.1771	0.1864	0.0302
0.55	246	-0.1985	0.2456	0.0303
0.55	258	0.1377	0.1579	0.0301
0.55	270	0.1793	0.1502	0.0302
0.55	282	-0.011	0.1767	0.03
0.65	234	-0.2546	0.2513	0.0304
0.65	246	-0.0837	0.1456	0.03
0.65	258	-0.1835	0.129	0.0302
0.65	270	0.0763	0.1159	0.03
0.65	282	-0.1485	0.1476	0.0301
0.65	294	0.0991	0.2399	0.0301
0.75	126	0.0838	0.2427	0.03
0.75	138	0.4434	0.1974	0.0313
0.75	150	0.1584	0.2018	0.0302
0.75	162	0.0501	0.2238	0.03
0.75	174	-0.292	0.2201	0.0306
0.75	210	0.3898	0.2332	0.031
0.75	234	-0.2496	0.1769	0.0304
0.75	246	-0.1493	0.1536	0.0301
0.75	258	-0.0858	0.1336	0.03
0.75	270	-0.0281	0.1372	0.03
0.75	282	-0.1781	0.1446	0.0302
0.75	294	-0.2499	0.2357	0.0304
0.85	114	-0.0597	0.2368	0.03
0.85	126	0.2043	0.1603	0.0303
0.85	138	0.0527	0.1529	0.03
0.85	150	-0.0278	0.1558	0.03
0.85	162	0.076	0.1399	0.03
0.85	174	0.1415	0.1587	0.0301
0.85	186	0.0972	0.1745	0.0301
0.85	198	-0.1873	0.1807	0.0302
0.85	210	-0.2923	0.2282	0.0306
0.85	234	0.0506	0.1802	0.03
0.85	246	-0.1604	0.1549	0.0302
0.85	258	-0.0773	0.1394	0.03
0.85	270	-0.0592	0.1468	0.03
0.85	282	0.2708	0.1813	0.0305
0.95	114	0.2063	0.2394	0.0303
0.95	126	0.3633	0.2188	0.0309
0.95	138	0.3874	0.1853	0.031
0.95	150	-0.0166	0.1747	0.03
0.95	162	0.1163	0.2118	0.0301
0.95	174	-0.0143	0.2044	0.03
0.95	186	-0.1684	0.1946	0.0302
0.95	198	0.2517	0.2506	0.0304
0.95	210	-0.36	0.2358	0.0309
0.95	258	-0.441	0.2466	0.0313