CLAS Physics Database

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Measurement E151M2704

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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 :	0.0496 GeV²
W :	1295 GeV
ε :	0.9028
E_beam :	1.3383 GeV
ε_L:	0.2202

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
0.15	42	0.323	0.1895	0.0312
0.35	30	0.1177	0.2147	0.0302
0.55	258	-0.1558	0.1749	0.0303
0.55	270	-0.4713	0.1668	0.0315
0.65	138	-0.3993	0.2638	0.031
0.65	234	-0.2536	0.1797	0.0304
0.65	246	0.0695	0.146	0.0305
0.65	258	-0.1846	0.1278	0.0302
0.65	270	0.0552	0.142	0.03
0.65	282	0.3803	0.1985	0.0318
0.75	114	0.3865	0.1695	0.031
0.75	126	0.0432	0.1546	0.03
0.75	138	0.2394	0.1626	0.0304
0.75	150	-0.3354	0.1752	0.0308
0.75	162	0.2103	0.1831	0.0304
0.75	174	0.4744	0.3462	0.0315
0.75	222	0.2678	0.2611	0.0305
0.75	234	-0.0002	0.1448	0.03
0.75	246	0.0115	0.1235	0.03
0.75	258	0.0932	0.1217	0.0301
0.75	270	0.0025	0.1331	0.0303
0.75	282	-0.4716	0.1604	0.032
0.85	114	-0.1225	0.1689	0.0302
0.85	126	-0.0937	0.1394	0.0301
0.85	138	-0.0547	0.1634	0.0302
0.85	150	0.0048	0.1523	0.0302
0.85	162	-0.0079	0.1577	0.03
0.85	174	0.2454	0.1824	0.0309
0.85	186	0.0447	0.2107	0.03
0.85	210	0.5925	0.2561	0.0323
0.85	222	0.2206	0.1779	0.0308
0.85	234	-0.0184	0.1586	0.03
0.85	246	-0.1202	0.1265	0.0301
0.85	258	0.1196	0.1292	0.0301
0.85	270	-0.0656	0.1284	0.0301
0.85	282	-0.3488	0.1434	0.0308
0.95	102	-0.2229	0.1923	0.0304
0.95	114	0.2552	0.3024	0.0304
0.95	126	-0.0928	0.2027	0.0301
0.95	138	-0.4232	0.3951	0.0312
0.95	150	0.2759	0.2481	0.0305
0.95	162	0.0817	0.2416	0.03
0.95	174	-0.0212	0.2524	0.03
0.95	186	0.3124	0.2729	0.0306
0.95	234	0.0495	0.3352	0.03
0.95	246	0.125	0.1826	0.0303
0.95	258	0.1518	0.1991	0.0306
0.95	270	0.2175	0.2	0.0303