CLAS Physics Database

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Measurement E151M2276

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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 :	0.348 GeV²
W :	1505 GeV
ε :	0.9109
E_beam :	2.999 GeV
ε_L:	0.3719

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
0.05	66	-0.0482	0.8027	0.0302
0.05	294	-0.901	0.8003	0.0719
0.05	306	0.7715	0.8517	0.0635
0.15	66	1.8238	0.6798	0.1356
0.15	78	-0.0425	0.9251	0.0302
0.15	282	0.2997	0.857	0.037
0.15	294	-0.2269	0.6402	0.0342
0.25	66	1.4013	0.8058	0.1059
0.25	282	-0.9569	0.8325	0.0756
0.25	294	-0.3125	0.6888	0.0376
0.25	306	-0.1752	0.812	0.0326
0.35	66	1.0374	0.7956	0.081
0.35	90	0.2494	0.9607	0.035
0.35	282	0.3449	0.6787	0.0391
0.35	294	-0.6125	0.5613	0.0536
0.45	54	-0.1854	0.9011	0.0329
0.45	90	0.1426	0.822	0.0317
0.45	102	0.7523	0.6632	0.0623
0.45	282	-0.6298	0.7355	0.0546
0.45	294	0.5817	0.8415	0.0518
0.45	306	0.8362	0.8258	0.0676
0.55	78	-0.6936	0.7072	0.0586
0.55	90	0.2806	0.6832	0.0362
0.55	102	-0.1553	0.6253	0.032
0.55	114	0.1304	0.8709	0.0315
0.55	234	1.1021	0.8579	0.0854
0.55	258	1.2524	0.7754	0.0956
0.55	282	0.5334	0.7832	0.0489
0.55	306	-0.7315	0.8178	0.0609
0.65	78	1.5839	0.5901	0.1187
0.65	90	-0.4571	0.5818	0.0447
0.65	102	0.4025	0.5502	0.0419
0.65	114	-0.0535	0.6469	0.0302
0.65	126	0.1056	0.8948	0.031
0.65	234	2.7382	2.7382	0.2008
0.65	246	0.1086	0.7251	0.031
0.65	258	-0.8275	0.6826	0.0671
0.65	270	1.1168	0.7011	0.0864
0.65	306	0.7009	0.8033	0.059
0.75	54	0.3159	0.674	0.0377
0.75	66	-0.4141	0.7466	0.0424
0.75	78	-0.5374	0.7243	0.0492
0.75	90	0.6786	0.5139	0.0576
0.75	102	-0.4898	0.5357	0.0465
0.75	114	-0.3823	0.6131	0.0408
0.75	126	1.6474	0.6274	0.1232
0.75	138	-0.0993	1.0151	0.0309
0.75	210	0.8837	0.9049	0.0708
0.75	222	-0.747	0.6083	0.0619
0.75	234	-0.0181	0.6008	0.03
0.75	246	-0.2642	0.5998	0.0356
0.75	258	-0.4332	0.6691	0.0434
0.75	270	-0.881	0.561	0.0706
0.75	282	-0.8738	0.8329	0.0701
0.85	54	0.1243	0.639	0.0313
0.85	66	0.4139	0.5369	0.0424
0.85	90	-0.437	0.7447	0.0436
0.85	102	-0.8824	0.5502	0.0707
0.85	114	0.073	0.6682	0.0305
0.85	126	-0.3738	0.8744	0.0404
0.85	186	1.3204	0.7977	0.1003
0.85	198	0.758	0.8619	0.0626
0.85	210	-0.1362	0.684	0.0316
0.85	222	-0.0039	0.6251	0.03
0.85	234	0.0565	0.5584	0.0303
0.85	246	0.8989	0.4978	0.0718
0.85	258	-0.0959	0.4945	0.0308
0.85	270	0.1639	0.5181	0.0323
0.85	282	0.1935	0.5549	0.0331
0.85	294	-0.461	0.5583	0.0449
0.85	306	-0.0538	0.7281	0.0303
0.95	198	-0.4675	0.7472	0.0453
0.95	210	1.8466	0.7245	0.1372
0.95	222	-0.1701	0.6186	0.0324
0.95	234	0.6753	0.6664	0.0574
0.95	246	0.6054	0.5364	0.0532
0.95	258	-1.0639	0.5781	0.0828
0.95	270	-0.4261	0.5422	0.0431
0.95	282	-0.2071	0.4913	0.0335
0.95	294	0.413	0.4997	0.0424
0.95	306	0.3379	0.4522	0.0387
0.95	318	-0.3505	0.5146	0.0393
0.95	330	-0.0543	0.7659	0.0303
0.95	342	0.2813	0.8332	0.0363