CLAS Physics Database

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Measurement E151M2325

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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 :	0.2915 GeV²
W :	1625 GeV
ε :	0.8836
E_beam :	2.999 GeV
ε_L:	0.2155

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	102	-0.4768	0.954	0.0458
0.55	90	2.2714	0.6801	0.1674
0.55	102	-0.0987	0.9145	0.0308
0.55	114	0.8286	0.8579	0.0672
0.55	270	-0.0061	0.9624	0.03
0.65	90	0.3611	0.8094	0.0398
0.65	102	-0.1672	0.9028	0.0324
0.65	114	0.1004	0.785	0.0309
0.65	126	-0.2651	0.8596	0.0356
0.65	222	-0.5462	1.0008	0.0497
0.65	234	1.7772	0.8223	0.1323
0.65	294	-2.117	0.7704	0.1564
0.65	306	0.5185	0.8803	0.0481
0.75	66	-0.4459	0.8734	0.0441
0.75	78	-0.2077	0.8142	0.0336
0.75	102	-0.3401	0.6774	0.0388
0.75	114	-0.4438	0.8654	0.044
0.75	126	0.2457	0.9163	0.0349
0.75	198	1.8427	0.9628	0.1369
0.75	210	-1.7703	1.0706	0.1318
0.75	222	0.5226	0.801	0.0483
0.75	234	0.1368	0.7073	0.0316
0.75	246	0.3086	0.698	0.0374
0.75	258	-0.1904	0.9515	0.033
0.75	270	0.1288	0.964	0.0314
0.75	306	0.4546	0.9519	0.0446
0.85	66	0.6909	0.6531	0.0584
0.85	78	0.1483	0.6825	0.0319
0.85	90	-0.4058	0.8078	0.042
0.85	102	-0.203	1.0532	0.0334
0.85	114	-0.4281	0.9505	0.0432
0.85	126	-0.3313	0.9582	0.0384
0.85	186	0.7155	0.9203	0.0599
0.85	198	0.3356	0.7498	0.0386
0.85	210	1.8663	0.5746	0.1386
0.85	222	-0.6643	0.7647	0.0567
0.85	234	0.5855	0.6114	0.052
0.85	246	-0.1839	0.6524	0.0328
0.85	258	0.7797	0.6072	0.064
0.85	270	1.7021	0.7524	0.127
0.85	282	0.8342	0.936	0.0675
0.95	66	0.6305	0.8388	0.0547
0.95	78	0.1214	0.7817	0.0313
0.95	90	-0.4714	0.9084	0.0455
0.95	198	0.0919	0.8583	0.0307
0.95	210	-0.6639	0.7951	0.0567
0.95	222	-0.4707	0.7289	0.0454
0.95	234	-0.4671	0.6309	0.0452
0.95	246	0.2662	0.6971	0.0357
0.95	258	-0.5691	0.6012	0.051
0.95	270	0.2602	0.5432	0.0354
0.95	282	0.88	0.627	0.0705
0.95	294	-1.6775	0.5984	0.1253
0.95	306	0.4533	0.778	0.0445