CLAS Physics Database

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Measurement E151M243

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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_UL,
Target spin asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.0707 GeV²
W :	1265 GeV
ε :	0.9069
E_beam :	1.3383 GeV
ε_L:	0.3616

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_UL,
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_UL	Data errors	Systematic errors
0.25	42	0.3584	0.5815	0.0373
0.45	270	0.4446	0.4651	0.0407
0.45	282	0.7859	0.4711	0.0572
0.55	258	0.101	0.395	0.0306
0.55	270	-0.1521	0.3577	0.0314
0.55	282	0.3015	0.4336	0.0353
0.65	246	0.3596	0.3823	0.0374
0.65	258	0.3626	0.3134	0.0375
0.65	270	0.1012	0.3161	0.0306
0.65	282	0.0471	0.3281	0.0301
0.75	114	-0.071	0.5038	0.0303
0.75	126	0.0436	0.4954	0.0301
0.75	138	0.6967	0.5016	0.0525
0.75	234	-0.4706	0.4117	0.0418
0.75	246	0.012	0.3928	0.03
0.75	258	-0.0256	0.3295	0.03
0.75	270	-0.087	0.3485	0.0305
0.75	282	-0.3246	0.3102	0.0361
0.75	294	-0.3849	0.446	0.0383
0.85	114	0.2398	0.3842	0.0335
0.85	126	-0.5091	0.318	0.0435
0.85	138	0.0521	0.3814	0.0302
0.85	150	-0.129	0.3959	0.031
0.85	162	0.2738	0.4123	0.0345
0.85	174	0.355	0.45	0.0372
0.85	186	-0.09	0.5331	0.0305
0.85	222	0.5453	0.4836	0.0452
0.85	234	-1.0461	0.407	0.0714
0.85	246	-0.2723	0.3429	0.0344
0.85	258	-0.3058	0.3408	0.0355
0.85	270	0.3288	0.3149	0.0363
0.85	282	-0.4287	0.3624	0.0401
0.85	294	-0.2982	0.5024	0.0352
0.95	90	0.126	0.4373	0.031
0.95	126	-0.0721	0.436	0.0303
0.95	138	-0.0384	0.3837	0.0301
0.95	150	-0.0671	0.3586	0.0303
0.95	162	-0.0305	0.3443	0.0301
0.95	174	0.0211	0.3924	0.03
0.95	186	-0.2769	0.3471	0.0346
0.95	234	-0.4803	0.397	0.0422
0.95	246	0.0472	0.3826	0.0301
0.95	258	-0.2124	0.3776	0.0328
0.95	270	0.0658	0.4147	0.0303
0.15	30	1.5281	1.0805	0.0968
0.25	42	0.2791	0.8322	0.0344
0.45	270	1.6464	0.8825	0.1036
0.45	282	1.0597	0.8253	0.0705
0.55	258	-0.4497	0.4981	0.0404
0.55	270	0.1803	0.5824	0.0319
0.55	282	-0.3695	0.4371	0.0373
0.65	246	1.4029	0.7178	0.0896
0.65	258	0.2418	0.5283	0.0333
0.65	270	-0.3408	0.3898	0.0363
0.65	282	-0.5943	0.3684	0.0467
0.75	126	1.0195	0.7744	0.0683
0.75	138	-0.389	0.573	0.0381
0.75	150	0.8269	0.9684	0.0581
0.75	234	0.3799	0.9084	0.0377
0.75	246	-0.332	0.4401	0.0361
0.75	258	0.2944	0.5699	0.0348
0.75	270	-0.0546	0.398	0.0302
0.75	282	-0.3331	0.4579	0.0361
0.75	294	-0.6481	0.4277	0.0492
0.85	102	-0.5186	0.5508	0.0433
0.85	114	-0.2335	0.491	0.0331
0.85	126	0.7194	0.6098	0.0527
0.85	138	-0.6751	0.3947	0.0505
0.85	150	0.2539	0.5664	0.0337
0.85	162	-0.2395	0.5507	0.0333
0.85	174	-0.8845	0.4303	0.0611
0.85	186	0.2337	0.7819	0.0331
0.85	198	-0.6387	0.5324	0.0488
0.85	222	1.3434	1.0128	0.0863
0.85	234	0.3661	0.8856	0.0372
0.85	246	-0.1051	0.5048	0.0307
0.85	258	0.3381	0.468	0.0363
0.85	270	0.1393	0.4649	0.0312
0.85	282	-0.1329	0.4031	0.031
0.85	294	0.707	0.8242	0.0521
0.95	102	-0.8995	0.4038	0.0619
0.95	126	0.8507	0.8007	0.0594
0.95	138	2.5979	2.5979	0.1593
0.95	150	0.3682	0.6012	0.0373
0.95	162	-0.6611	0.4298	0.0498
0.95	174	-0.5473	0.4797	0.0446
0.95	186	0.2446	0.6806	0.0334
0.95	258	0.2622	0.6317	0.0339