CLAS Physics Database

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Measurement E151M2697

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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 :	0.0143 GeV²
W :	1295 GeV
ε :	0.9232
E_beam :	1.3383 GeV
ε_L:	0.0709

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
0.65	234	0.2954	0.3076	0.0306
0.65	246	-0.2674	0.2794	0.0305
0.65	258	-0.1373	0.2633	0.0301
0.75	150	0.259	0.2919	0.0304
0.75	162	-0.5996	0.3359	0.0323
0.75	174	0.0044	0.3927	0.03
0.75	222	0.3016	0.3119	0.0306
0.75	234	-0.3038	0.3121	0.0306
0.75	246	0.1623	0.2619	0.0302
0.75	258	-0.4777	0.2684	0.0315
0.75	270	-0.3719	0.314	0.0309
0.85	246	0.4033	0.2686	0.0311
0.85	258	0.1046	0.3473	0.0301
0.55	246	-0.3127	0.2484	0.0306
0.65	234	-0.129	0.1956	0.0301
0.65	246	-0.4925	0.2026	0.0316
0.65	258	0.0433	0.2259	0.03
0.65	270	-0.3817	0.2404	0.031
0.75	150	0.2699	0.237	0.0305
0.75	162	0.0585	0.2873	0.03
0.75	222	-0.0408	0.2425	0.03
0.75	234	-0.3657	0.1906	0.0309
0.75	246	0.1589	0.1845	0.0302
0.75	258	-0.2286	0.2134	0.0303
0.75	270	0.1252	0.27	0.0301
0.85	234	-0.1499	0.2113	0.0301
0.85	246	-0.0346	0.2175	0.03
0.85	258	-0.121	0.2096	0.0301