CLAS Physics Database

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Measurement E151M3247

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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 :	1415 GeV
ε :	0.9437
E_beam :	2.2596 GeV
ε_L:	0.1201

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	66	0.1033	0.1784	0.0301
0.35	66	0.244	0.1487	0.0304
0.35	78	-0.1188	0.1374	0.0301
0.35	282	-0.0029	0.1382	0.0301
0.35	294	-0.0063	0.1401	0.0304
0.45	66	0.1556	0.1372	0.0307
0.45	78	-0.078	0.1247	0.03
0.45	90	-0.2117	0.1522	0.0308
0.45	270	0.141	0.162	0.0304
0.45	282	0.1938	0.1369	0.0305
0.45	294	0.1256	0.1372	0.0301
0.55	66	0.0147	0.1685	0.03
0.55	78	-0.1182	0.134	0.0303
0.55	90	-0.3095	0.1625	0.0307
0.55	114	0.2301	0.1614	0.0307
0.55	126	0.2562	0.2175	0.0304
0.55	246	-0.1628	0.232	0.0302
0.55	270	0.1495	0.1583	0.0303
0.55	282	-0.0784	0.134	0.0303
0.55	294	0.0176	0.1538	0.03
0.65	66	0.1051	0.1557	0.0308
0.65	78	0.135	0.1624	0.0301
0.65	102	-0.3453	0.2216	0.0308
0.65	114	0.0084	0.1299	0.0301
0.65	126	-0.1377	0.1332	0.0301
0.65	138	0.1145	0.1612	0.0302
0.65	150	-0.3266	0.2526	0.0307
0.65	222	-0.2152	0.1468	0.0305
0.65	234	-0.3018	0.1362	0.0306
0.65	246	-0.0277	0.1421	0.0304
0.65	258	-0.0347	0.1768	0.0301
0.65	270	0.1593	0.1699	0.0302
0.75	102	0.0167	0.2451	0.03
0.75	114	-0.1755	0.195	0.0302
0.75	126	-0.2261	0.1849	0.0303
0.75	138	0.123	0.1724	0.0301
0.75	210	-0.008	0.2399	0.03
0.75	222	0.1983	0.1947	0.0303
0.75	234	0.1149	0.1816	0.0301
0.75	246	-0.2585	0.1784	0.0304
0.75	258	0.288	0.2469	0.0305
0.85	114	-0.0053	0.22	0.03
0.85	126	0.1008	0.2098	0.0301
0.85	138	-0.4199	0.2041	0.0312
0.85	210	0.2761	0.3093	0.0305
0.85	222	-0.1225	0.2017	0.0301
0.85	234	0.158	0.1731	0.0302
0.85	246	-0.0736	0.1752	0.03
0.85	258	0.0165	0.1864	0.03
0.95	234	-0.3137	0.2513	0.0306
0.95	246	-0.0234	0.2443	0.03
0.65	306	0.085	0.2548	0.03
0.75	78	0.0007	0.2226	0.03
0.75	102	-0.184	0.2505	0.0302
0.75	114	0.0843	0.1684	0.03
0.75	126	0.0965	0.1696	0.0301
0.75	138	0.6233	0.1772	0.0325
0.75	150	0.0928	0.1979	0.0301
0.75	210	-0.2804	0.2328	0.0305
0.75	222	-0.1702	0.1919	0.0302
0.75	234	-0.0622	0.1643	0.03
0.75	246	-0.3324	0.1641	0.0307
0.75	258	0.4591	0.1865	0.0314
0.85	90	-0.131	0.2536	0.0301
0.85	114	-0.0581	0.2178	0.03
0.85	126	0.0385	0.208	0.03
0.85	138	-0.0468	0.2111	0.03
0.85	222	0.335	0.1791	0.0307
0.85	234	-0.3092	0.1487	0.0306
0.85	246	-0.3185	0.1846	0.0307
0.85	258	-0.4146	0.1669	0.0311
0.95	222	0.4206	0.2295	0.0312
0.95	234	-0.029	0.2213	0.03
0.95	246	0.3632	0.2114	0.0309