CLAS Physics Database

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Measurement E151M1368

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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 :	0.0071 GeV²
W :	1415 GeV
ε :	0.7202
E_beam :	1.0539 GeV
ε_L:	0.0141

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
0.35	42	-2.2554	0.804	0.2561
0.35	54	-0.0327	0.9459	0.0302
0.45	42	-0.6325	0.8567	0.0774
0.45	54	-1.0652	0.631	0.1238
0.45	222	1.0926	0.8071	0.1268
0.45	234	-1.3564	0.7906	0.1559
0.55	18	-1.1202	0.8684	0.1299
0.55	30	-1.1385	0.8603	0.1319
0.55	42	-0.1583	0.8158	0.0349
0.55	54	-0.7095	0.823	0.0855
0.55	222	-0.5495	0.7989	0.0689
0.55	234	0.5224	0.7242	0.0661
0.55	246	-0.0078	0.8918	0.03
0.65	42	0.1166	0.9714	0.0328
0.65	54	-0.9671	0.7902	0.1131
0.65	150	-1.8333	0.9455	0.2089
0.65	174	0.1242	0.9437	0.0331
0.65	222	-1.4829	0.6466	0.1699
0.65	234	0.9018	0.5697	0.106
0.65	246	-0.616	0.7853	0.0757
0.75	222	-0.0264	0.895	0.0301
0.75	234	0.2829	0.7011	0.0438
0.75	246	0.5143	0.6277	0.0653
0.85	210	1.7114	0.833	0.1953
0.85	222	-0.4969	0.6982	0.0636
0.85	234	-0.4371	0.805	0.0577
0.85	246	-0.6328	0.6373	0.0774