CLAS Physics Database

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Measurement E151M2596

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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 :	0.0205 GeV²
W :	1415 GeV
ε :	0.7036
E_beam :	1.0539 GeV
ε_L:	0.0389

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
0.25	42	0.2603	0.1927	0.0304
0.25	54	0.5707	0.1933	0.0321
0.35	30	0.2915	0.2471	0.0306
0.35	42	0.0537	0.1768	0.03
0.35	54	-0.0681	0.1607	0.03
0.35	66	0.2803	0.2326	0.0305
0.45	18	0.3278	0.2605	0.0307
0.45	30	0.1672	0.2135	0.0302
0.45	42	-0.0031	0.1567	0.03
0.45	54	-0.0161	0.1514	0.03
0.45	66	0.0661	0.2553	0.03
0.45	222	-0.4167	0.2228	0.0311
0.45	234	0.0261	0.217	0.03
0.55	30	0.2525	0.1942	0.0304
0.55	42	0.1875	0.1638	0.0302
0.55	54	-0.355	0.1411	0.0308
0.55	66	0.0526	0.2549	0.03
0.55	150	-0.0364	0.2414	0.03
0.55	162	0.4442	0.1989	0.0313
0.55	174	0.1074	0.239	0.0301
0.55	210	0.1503	0.2195	0.0302
0.55	222	-0.2577	0.1777	0.0304
0.55	234	-0.0125	0.1707	0.03
0.55	246	-0.0507	0.1545	0.03
0.55	258	-0.0575	0.2118	0.03
0.65	30	0.0484	0.2605	0.03
0.65	138	0.024	0.2493	0.03
0.65	150	-0.3089	0.2006	0.0306
0.65	162	-0.244	0.2232	0.0304
0.65	174	0.2302	0.214	0.0304
0.65	210	-0.2012	0.2091	0.0303
0.65	222	0.1151	0.164	0.0301
0.65	234	-0.1972	0.1296	0.0303
0.65	246	-0.1728	0.1401	0.0302
0.65	258	0.1048	0.1725	0.0301
0.75	150	0.0898	0.1726	0.0301
0.75	162	0.2303	0.208	0.0304
0.75	210	0.2775	0.2095	0.0305
0.75	222	-0.1554	0.1675	0.0302
0.75	234	-0.0131	0.1435	0.03
0.75	246	-0.0226	0.1411	0.03
0.75	258	-0.1295	0.174	0.0301
0.85	210	-0.1172	0.2533	0.0301
0.85	222	-0.1294	0.1833	0.0301
0.85	234	-0.1656	0.1631	0.0302
0.85	246	-0.0903	0.1441	0.0301
0.85	258	0.0883	0.199	0.0301
0.85	270	-0.1537	0.26	0.0302
0.95	246	-0.0511	0.2549	0.03