CLAS Physics Database

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Measurement E151M1513

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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 :	0.0143 GeV²
W :	1355 GeV
ε :	0.8862
E_beam :	1.3383 GeV
ε_L:	0.0476

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
0.45	42	-0.8722	0.925	0.0603
0.55	222	-0.6073	0.7912	0.0472
0.55	234	-0.2946	0.6151	0.0348
0.55	246	0.1473	0.6041	0.0313
0.55	258	1.3207	0.6428	0.0847
0.65	138	0.9168	0.721	0.0626
0.65	150	-0.0512	0.7812	0.0302
0.65	162	0.7173	0.7544	0.0524
0.65	210	0.3027	0.8756	0.0351
0.65	222	-0.221	0.6473	0.0328
0.65	234	-1.1411	0.5421	0.0747
0.65	246	-0.4815	0.6936	0.0416
0.65	258	-1.3153	0.6377	0.0843
0.75	126	0.8364	0.7584	0.0584
0.75	138	0.2423	0.6736	0.0333
0.75	150	0.6035	0.6013	0.047
0.75	210	-0.6646	0.8488	0.0499
0.75	222	0.3682	0.7239	0.0372
0.75	234	-1.3681	0.5192	0.0873
0.75	246	0.4487	0.5963	0.0403
0.75	258	0.1106	0.6321	0.0307
0.85	222	-0.7266	0.7044	0.0529
0.85	234	-0.6157	0.6104	0.0476
0.85	246	-0.3816	0.5113	0.0377
0.85	258	-0.6618	0.7458	0.0497
0.35	42	-0.5731	0.9743	0.0448
0.45	42	-1.7048	0.7123	0.1036
0.55	234	-1.4284	0.8063	0.0883
0.55	246	0.0141	0.979	0.03
0.65	138	1.5926	0.7844	0.0973
0.65	150	1.2269	0.9233	0.0774
0.65	222	-0.7381	0.7661	0.0524
0.65	234	0.7715	0.6991	0.054
0.65	246	-0.1649	0.8921	0.0315
0.75	126	0.0847	1.1045	0.0304
0.75	138	-0.3597	1.0614	0.0366
0.75	150	-0.3425	1.0017	0.036
0.75	222	0.4385	0.7469	0.0394
0.75	234	0.3593	0.6045	0.0366
0.75	246	0.552	0.765	0.0439
0.75	258	1.6067	0.6237	0.0981
0.85	222	0.4694	0.9815	0.0406
0.85	234	-0.5709	0.6263	0.0447
0.85	246	-0.0664	0.7695	0.0302
0.85	258	-1.2079	0.6133	0.0764