CLAS Physics Database

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Measurement E151M1322

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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_LL,

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 :	0.7217
E_beam :	1.0539 GeV
ε_L:	0.3089

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LL,
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_LL	Stat. error	Syst. error
0.55	258	1.1545	0.7246	0.1336
0.55	270	0.3216	0.658	0.0471
0.65	246	0.3813	0.5831	0.0524
0.65	258	0.6006	0.7058	0.0741
0.65	270	-0.2396	0.6432	0.0404
0.65	282	-0.4076	0.7519	0.0549
0.75	138	0.7735	0.7864	0.0923
0.75	150	-0.4076	0.8739	0.0549
0.75	246	-0.9557	0.6225	0.1119
0.75	258	-0.0426	0.7644	0.0304
0.75	270	0.5045	0.6611	0.0643
0.75	282	1.1127	0.6582	0.129
0.75	294	0.6105	0.8301	0.0751
0.85	126	1.2286	0.7816	0.1418
0.85	138	-0.0147	0.7109	0.03
0.85	150	-0.1782	0.7582	0.0361
0.85	162	-0.1144	0.72	0.0327
0.85	186	1.7699	0.6422	0.2019
0.85	246	0.3056	0.7994	0.0457
0.85	258	1.4305	0.6033	0.1641
0.85	270	0.9821	0.6481	0.1148
0.85	282	-0.9701	0.5481	0.1135
0.85	294	1.1508	0.6944	0.1332
0.95	102	1.5428	0.6547	0.1766
0.95	114	-0.3165	0.7915	0.0466
0.95	138	0.5133	0.7314	0.0652
0.95	162	-0.6894	0.6507	0.0833
0.95	174	0.6708	0.6255	0.0814
0.95	258	1.9358	1.9358	0.2204