CLAS Physics Database

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Measurement E151M2711

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

Q² :	0.1715 GeV²
W :	1295 GeV
ε :	0.8286
E_beam :	1.3383 GeV
ε_L:	0.5339

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LU,
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_LU	Stat. error	Syst. error
0.55	270	-0.0214	0.366	0.03
0.55	282	-0.5718	0.2896	0.0321
0.65	258	-0.2357	0.3667	0.0304
0.65	270	0.0252	0.2854	0.03
0.65	282	-0.7161	0.1835	0.0332
0.75	102	0.2997	0.3327	0.0306
0.75	114	0.3881	0.3203	0.031
0.75	234	-0.6574	0.2612	0.0328
0.75	246	-0.0543	0.351	0.03
0.75	258	-0.4911	0.2535	0.0316
0.75	270	0.5342	0.2591	0.0318
0.75	282	-0.1333	0.3053	0.0301
0.75	294	-0.3501	0.4145	0.0308
0.85	90	0.0976	0.381	0.0301
0.85	102	-0.0164	0.3513	0.03
0.85	114	0.0449	0.2966	0.03
0.85	126	-0.514	0.2399	0.0317
0.85	138	-0.1277	0.3637	0.0301
0.85	150	0.2363	0.3281	0.0304
0.85	162	-0.2569	0.3728	0.0304
0.85	246	-0.0489	0.3412	0.03
0.85	258	0.0569	0.3225	0.03
0.85	270	0.3487	0.2963	0.0308
0.85	282	0.2089	0.3566	0.0303
0.85	294	-0.181	0.3606	0.0302
0.95	54	0.0089	0.3663	0.03
0.95	66	-0.1602	0.3982	0.0302
0.95	114	0.4457	0.2553	0.0313
0.95	126	0.2744	0.3394	0.0305
0.95	138	-0.0941	0.374	0.0301
0.95	162	-0.4528	0.3653	0.0313
0.95	174	-0.5071	0.2854	0.0317
0.95	270	0.3365	0.3349	0.0307
0.95	282	0.3717	0.3235	0.0309
0.45	282	-0.1267	0.2756	0.0301
0.55	258	-0.0132	0.2497	0.03
0.55	270	-0.1562	0.2309	0.0302
0.65	246	-0.0501	0.283	0.03
0.65	258	0.1744	0.2405	0.0302
0.65	270	-0.0975	0.2054	0.0301
0.65	282	-0.1649	0.2394	0.0302
0.75	102	-0.0195	0.2641	0.03
0.75	114	0.258	0.273	0.0304
0.75	126	0.2431	0.258	0.0304
0.75	246	0.032	0.1968	0.03
0.75	258	-0.1616	0.1897	0.0302
0.75	270	0.0648	0.2202	0.03
0.75	282	-0.1161	0.2203	0.0301
0.75	294	0.5175	0.2427	0.0317
0.85	90	-0.1178	0.2359	0.0301
0.85	102	0.2598	0.2139	0.0304
0.85	114	0.1313	0.2131	0.0301
0.85	126	-0.2969	0.2282	0.0306
0.85	138	-0.127	0.2546	0.0301
0.85	150	-0.0708	0.2784	0.03
0.85	234	-0.3409	0.2605	0.0308
0.85	258	-0.1449	0.2539	0.0301
0.85	270	-0.0874	0.2023	0.0301
0.85	282	0.1889	0.1898	0.0302
0.85	294	-0.4259	0.1983	0.0312
0.85	306	-0.1241	0.275	0.0301
0.95	54	0.0146	0.2756	0.03
0.95	66	0.0947	0.262	0.0301
0.95	114	0.1729	0.2566	0.0302
0.95	126	-0.2122	0.231	0.0303
0.95	138	-0.4051	0.2347	0.0311
0.95	150	-0.0433	0.2446	0.03
0.95	162	0.0838	0.2895	0.03
0.95	258	-0.2958	0.2664	0.0306
0.95	270	-0.0365	0.2674	0.03
0.95	294	0.1412	0.2576	0.0301