CLAS Physics Database

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Measurement E151M1650

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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 :	0.0348 GeV²
W :	1565 GeV
ε :	0.6254
E_beam :	1.3383 GeV
ε_L:	0.0298

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	138	1.2026	0.9413	0.0781
0.55	246	-1.2642	0.91	0.0815
0.65	222	0.015	0.9575	0.03
0.65	234	-1.5093	0.8126	0.0953
0.65	246	0.5726	0.8977	0.0456
0.75	162	0.7827	0.9317	0.0557
0.75	210	-0.5861	1.0046	0.0462
0.75	222	-1.1458	0.8255	0.0749
0.75	234	0.6602	0.813	0.0497
0.85	138	-2.2069	0.8573	0.1356
0.85	222	-0.6623	0.7729	0.0498
0.85	234	-0.8442	0.8626	0.0588
0.85	246	0.7777	0.8334	0.0554
0.35	42	-0.2841	1.32	0.0342
0.45	222	-0.6653	1.1855	0.049
0.55	222	2.4822	2.4822	0.1474
0.55	234	-0.9189	1.0118	0.0613
0.65	138	-1.1805	1.1517	0.0749
0.65	150	-0.258	1.4443	0.0335
0.65	210	0.7658	1.1418	0.0537
0.65	222	2.6556	2.6556	0.1573
0.65	234	-0.0929	1.2296	0.0305
0.65	246	-2.0442	0.6661	0.1226
0.75	222	-1.1609	1.0136	0.0739
0.75	234	-1.1767	0.9796	0.0747
0.75	246	-1.1208	1.3543	0.0717
0.85	150	-0.5335	1.4152	0.0432
0.85	210	-0.8389	1.2047	0.0573
0.85	222	0.6771	0.8584	0.0495
0.85	234	-0.0208	1.1293	0.03
0.85	246	-0.9136	1.1357	0.061