CLAS Physics Database

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Measurement E151M2488

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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 :	0.0121 GeV²
W :	1265 GeV
ε :	0.8946
E_beam :	1.0539 GeV
ε_L:	0.0709

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	-0.0939	0.2261	0.0301
0.25	54	0.4495	0.1926	0.0313
0.35	54	0.2608	0.1992	0.0304
0.35	66	-0.1135	0.2495	0.0301
0.45	42	-0.0137	0.2375	0.03
0.45	54	-0.2103	0.2331	0.0303
0.45	258	0.0424	0.2626	0.03
0.45	270	0.1843	0.2461	0.0302
0.55	30	-0.1375	0.2538	0.0301
0.55	42	-0.0646	0.2158	0.03
0.55	54	-0.2629	0.1697	0.0305
0.55	234	-0.3448	0.172	0.0308
0.55	246	0.3107	0.1757	0.0306
0.55	258	-0.0568	0.1397	0.03
0.55	270	-0.0694	0.1644	0.03
0.65	150	-0.162	0.2139	0.0302
0.65	162	0.3137	0.1999	0.0306
0.65	174	-0.2544	0.1936	0.0304
0.65	198	0.1201	0.2452	0.0301
0.65	222	0.1653	0.1771	0.0302
0.65	234	-0.0914	0.159	0.0301
0.65	246	0.0732	0.1193	0.03
0.65	258	-0.1167	0.1301	0.0301
0.65	270	0.1168	0.1435	0.0301
0.75	138	0.3746	0.1968	0.0309
0.75	150	0.0914	0.2023	0.0301
0.75	162	-0.1957	0.1748	0.0303
0.75	174	-0.1343	0.1881	0.0301
0.75	186	0.125	0.179	0.0301
0.75	198	-0.1317	0.1993	0.0301
0.75	210	-0.1409	0.2355	0.0301
0.75	222	0.1089	0.1909	0.0301
0.75	234	0.04	0.1517	0.03
0.75	246	-0.1362	0.121	0.0301
0.75	258	-0.1206	0.1344	0.0301
0.75	270	0.0249	0.168	0.03
0.85	162	0.0497	0.232	0.03
0.85	174	-0.0547	0.248	0.03
0.85	186	0.1245	0.2277	0.0301
0.85	210	-0.0711	0.2435	0.03
0.85	222	-0.2546	0.1892	0.0304
0.85	234	0.212	0.1706	0.0303
0.85	246	0.014	0.1662	0.03
0.85	258	-0.0747	0.1789	0.03
0.85	270	0.4689	0.2363	0.0314