CLAS Physics Database

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Measurement E151M2728

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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 :	0.1205 GeV²
W :	1325 GeV
ε :	0.8394
E_beam :	1.3383 GeV
ε_L:	0.3593

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	0.3451	0.2081	0.0308
0.55	270	0.0041	0.1912	0.0301
0.65	246	0.0035	0.1685	0.0302
0.65	258	-0.2877	0.1609	0.0306
0.65	270	-0.1545	0.1637	0.0304
0.65	282	0.3576	0.1739	0.0309
0.75	102	-0.0098	0.2315	0.03
0.75	114	0.1143	0.1614	0.0301
0.75	126	0.1172	0.173	0.0301
0.75	138	0.1004	0.1898	0.0301
0.75	150	0.5416	0.3124	0.0319
0.75	222	-0.1523	0.3693	0.0302
0.75	234	0.3042	0.1933	0.0306
0.75	246	-0.091	0.1559	0.0302
0.75	258	-0.0186	0.1612	0.0301
0.75	270	0.0822	0.1492	0.03
0.75	282	-0.6286	0.1148	0.0333
0.85	102	0.3922	0.1694	0.031
0.85	114	-0.0137	0.161	0.0301
0.85	126	0.1397	0.148	0.0304
0.85	138	0.3308	0.1609	0.031
0.85	150	0.0494	0.1772	0.0301
0.85	162	-0.2121	0.2324	0.0305
0.85	174	0.4203	0.2277	0.0312
0.85	234	0.5119	0.1436	0.032
0.85	246	0.2127	0.1488	0.0304
0.85	258	-0.0832	0.1511	0.03
0.85	270	-0.0246	0.1345	0.03
0.85	282	-0.0743	0.1455	0.0301
0.85	294	0.2679	0.2052	0.0306
0.95	66	-0.1124	0.2095	0.0301
0.95	78	0.273	0.1642	0.0307
0.95	90	0.0371	0.2029	0.0301
0.95	126	-0.072	0.3779	0.03
0.95	138	0.1409	0.2325	0.0304
0.95	150	-0.2358	0.1903	0.0304
0.95	162	-0.0475	0.2697	0.03
0.95	174	0.047	0.2501	0.03
0.95	234	-0.645	0.2265	0.0327
0.95	246	0.3378	0.1854	0.0309
0.95	258	0.2352	0.1875	0.0304
0.95	270	-0.0439	0.1789	0.0303
0.95	282	0.3241	0.1893	0.0307
0.95	294	0.2729	0.2006	0.0308