CLAS Physics Database

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Measurement E151M2535

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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 :	0.0245 GeV²
W :	1325 GeV
ε :	0.825
E_beam :	1.0539 GeV
ε_L:	0.0878

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	42	-0.4578	0.2045	0.0314
0.25	42	0.0106	0.1799	0.03
0.25	54	-0.0909	0.191	0.0301
0.35	30	0.3731	0.213	0.0309
0.35	42	0.3427	0.1773	0.0308
0.35	54	-0.2484	0.175	0.0304
0.35	66	-0.2336	0.2612	0.0304
0.45	30	0.1026	0.1614	0.0301
0.45	42	0.2483	0.1303	0.0304
0.45	54	-0.0118	0.2006	0.03
0.45	246	-0.0692	0.2561	0.03
0.55	42	0.132	0.175	0.0301
0.55	54	-0.4018	0.1826	0.0311
0.55	234	-0.0981	0.1918	0.0301
0.55	246	0.0687	0.1569	0.03
0.55	258	-0.0321	0.1374	0.03
0.55	270	-0.5685	0.183	0.0321
0.65	138	0.0646	0.2362	0.03
0.65	150	0.117	0.1917	0.0301
0.65	162	0.017	0.1864	0.03
0.65	174	0.1608	0.2208	0.0302
0.65	198	-0.4068	0.2411	0.0311
0.65	210	0.1033	0.241	0.0301
0.65	222	-0.3463	0.1783	0.0308
0.65	234	0.2607	0.142	0.0304
0.65	246	0.1693	0.1291	0.0302
0.65	258	0.0069	0.1257	0.03
0.65	270	-0.0136	0.1508	0.03
0.75	126	0.2767	0.2369	0.0305
0.75	138	-0.0281	0.1726	0.03
0.75	150	0.087	0.1692	0.0301
0.75	162	0.1857	0.1717	0.0302
0.75	174	-0.0014	0.2085	0.03
0.75	186	-0.5403	0.1739	0.0319
0.75	210	-0.1106	0.2133	0.0301
0.75	222	-0.2654	0.1899	0.0305
0.75	234	-0.0803	0.1586	0.03
0.75	246	-0.0424	0.1329	0.03
0.75	258	-0.0602	0.1381	0.03
0.75	270	-0.1705	0.1604	0.0302
0.85	126	0.3901	0.2346	0.031
0.85	138	-0.249	0.2167	0.0304
0.85	150	-0.1391	0.2153	0.0301
0.85	162	0.0552	0.2419	0.03
0.85	174	-0.2748	0.2402	0.0305
0.85	222	-0.3306	0.2082	0.0307
0.85	234	0.0008	0.1365	0.03
0.85	246	-0.0343	0.1401	0.03
0.85	258	0.0364	0.1279	0.03
0.85	270	-0.4344	0.1372	0.0312
0.95	246	0.0115	0.2418	0.03