CLAS Physics Database

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Measurement E151M1376

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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 :	0.0291 GeV²
W :	1415 GeV
ε :	0.6928
E_beam :	1.0539 GeV
ε_L:	0.0537

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
0.25	42	-0.7299	0.8318	0.0876
0.25	54	1.0202	0.9476	0.1189
0.35	30	1.0042	1.0086	0.1172
0.35	42	1.1763	0.7028	0.136
0.35	54	-0.888	0.7229	0.1045
0.35	66	0.8489	1.0415	0.1003
0.45	30	0.9729	0.7989	0.1138
0.45	42	0.4279	0.6629	0.0568
0.45	54	-1.0154	0.6297	0.1184
0.45	234	1.1564	0.9297	0.1338
0.45	246	1.0306	0.7167	0.12
0.45	258	-0.5546	0.894	0.0694
0.55	30	-0.2271	0.9077	0.0394
0.55	42	0.5507	0.6873	0.069
0.55	54	-1.2113	0.6988	0.1399
0.55	150	-0.6659	0.9255	0.0809
0.55	222	-0.7224	0.6918	0.0868
0.55	234	-0.2216	0.6815	0.039
0.55	246	0.2987	0.5821	0.0451
0.55	258	-0.3748	0.6664	0.0518
0.65	138	1.8941	0.7914	0.2157
0.65	150	-0.2463	0.7851	0.0409
0.65	162	-0.256	0.7936	0.0416
0.65	174	-0.1182	0.893	0.0328
0.65	186	-0.7905	0.873	0.0941
0.65	210	-0.1366	0.7927	0.0337
0.65	222	-0.3185	0.6142	0.0468
0.65	234	-0.4973	0.5384	0.0636
0.65	246	0.5183	0.5008	0.0657
0.65	258	-0.418	0.6181	0.0559
0.65	270	-1.0787	0.7019	0.1253
0.75	138	0.0603	0.772	0.0308
0.75	150	0.2549	0.8255	0.0416
0.75	162	-0.5299	0.7864	0.0669
0.75	174	-0.3991	0.8314	0.0541
0.75	186	1.3953	0.8598	0.1602
0.75	222	-0.3052	0.676	0.0457
0.75	234	-0.5781	0.4961	0.0718
0.75	246	-0.0697	0.5162	0.031
0.75	258	0.6412	0.5659	0.0783
0.75	270	-0.5898	0.8474	0.073
0.85	138	0.0364	0.9421	0.0303
0.85	222	1.3973	0.656	0.1604
0.85	234	-0.2316	0.5813	0.0398
0.85	246	0.1876	0.4746	0.0367
0.85	258	0.2746	0.5293	0.0431
0.85	270	-0.0202	0.7436	0.0301
0.95	258	0.0047	0.7072	0.03