CLAS Physics Database

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Measurement E151M2665

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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 :	0.0415 GeV²
W :	1235 GeV
ε :	0.9364
E_beam :	1.3383 GeV
ε_L:	0.2909

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	0.2674	0.2053	0.0307
0.25	30	0.384	0.276	0.031
0.25	42	0.0273	0.1669	0.03
0.25	54	-0.1244	0.1904	0.0305
0.45	270	-0.2876	0.1795	0.0306
0.45	282	-0.3401	0.1551	0.0309
0.55	258	0.2436	0.1421	0.0304
0.55	270	0.0084	0.1161	0.0302
0.55	282	-0.1803	0.1582	0.0306
0.65	234	-0.0406	0.2695	0.03
0.65	246	0.1666	0.1612	0.0302
0.65	258	0.027	0.1155	0.03
0.65	270	-0.1003	0.1242	0.0301
0.65	282	-0.2403	0.1138	0.0311
0.75	126	0.3546	0.2194	0.0309
0.75	138	0.1483	0.1689	0.0302
0.75	150	-0.628	0.1652	0.033
0.75	162	-0.2366	0.1955	0.0304
0.75	222	-0.1427	0.3465	0.0301
0.75	234	-0.3683	0.1901	0.031
0.75	246	-0.2118	0.1241	0.0303
0.75	258	-0.1324	0.1151	0.0302
0.75	270	0.0355	0.1102	0.0307
0.75	282	-0.0643	0.1444	0.03
0.85	114	-0.3013	0.2343	0.0306
0.85	126	0.0199	0.1768	0.03
0.85	138	-0.0876	0.1382	0.0302
0.85	150	-0.1986	0.1492	0.0308
0.85	162	0.004	0.1484	0.03
0.85	174	0.0011	0.1454	0.03
0.85	186	0.0004	0.1382	0.03
0.85	198	-0.1078	0.1715	0.0305
0.85	210	0.1507	0.1878	0.0306
0.85	222	-0.4242	0.1883	0.0312
0.85	234	-0.1173	0.186	0.0301
0.85	246	-0.0201	0.1453	0.0301
0.85	258	-0.0659	0.1268	0.0301
0.85	270	0.1524	0.139	0.0302
0.85	282	0.1786	0.2095	0.0305
0.95	138	0.2101	0.1819	0.0315
0.95	150	0.6552	0.1558	0.0334
0.95	162	0.0032	0.1698	0.0307
0.95	174	-0.0044	0.1931	0.0301
0.95	186	-0.3603	0.1739	0.0323
0.95	198	-0.2124	0.3507	0.0303
0.95	210	0.0484	0.2669	0.03