CLAS Physics Database

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Measurement E151M2386

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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 :	0.1435 GeV²
W :	1775 GeV
ε :	0.8502
E_beam :	2.999 GeV
ε_L:	0.0737

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
0.65	54	1.8242	0.9492	0.1356
0.65	114	-0.6752	0.9696	0.0574
0.65	186	-1.1208	1.0925	0.0866
0.65	198	-0.5675	1.0086	0.0509
0.65	222	-0.2296	1.148	0.0343
0.65	282	-1.3215	0.7884	0.1004
0.65	294	1.8216	0.9449	0.1355
0.75	102	-0.8846	0.948	0.0708
0.75	186	0.6203	1.0296	0.0541
0.75	198	-1.5903	0.8953	0.1192
0.75	210	0.1271	0.8834	0.0314
0.75	222	1.4468	0.9596	0.1091
0.75	234	0.1645	0.9765	0.0323
0.75	270	1.1974	0.8938	0.0919
0.75	282	-0.4675	0.7684	0.0453
0.75	294	-1.0535	0.9401	0.0821
0.85	90	-0.915	0.8055	0.0728
0.85	102	0.0983	0.672	0.0308
0.85	114	-0.1541	0.7092	0.032
0.85	126	-0.5672	1.0082	0.0509
0.85	174	1.3068	0.9417	0.0994
0.85	186	-0.1705	0.8861	0.0324
0.85	198	-0.6368	0.7541	0.0551
0.85	210	1.8258	0.7193	0.1357
0.85	222	-0.2715	0.7282	0.0359
0.85	234	-0.5171	0.9908	0.048
0.85	246	-0.2087	0.9157	0.0336
0.95	198	0.2033	0.9915	0.0334
0.95	210	-0.2698	0.7878	0.0358
0.95	222	-0.1966	0.8803	0.0332
0.95	234	-0.148	0.9184	0.0319