Measurement E151M2931

Experiment:	EG4
Year:	2016	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).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_LU
ε_L:	0.2444
Q²:	0.0415 GeV²
W:	1265.0 GeV
E_beam:	1.9889 GeV
ε:	0.9682

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.25	306.0	-0.0572	0.2528
0.35	78.0	0.3316	0.1818
0.35	294.0	-0.2239	0.2655
0.35	306.0	-0.1292	0.2555
0.45	66.0	-0.0335	0.2327
0.45	78.0	0.0287	0.1574
0.45	90.0	-0.0201	0.193
0.45	294.0	0.1278	0.2471
0.55	78.0	0.052	0.1611
0.55	90.0	-0.0101	0.1554
0.55	102.0	-0.0746	0.2558
0.55	258.0	0.3498	0.2374
0.55	270.0	0.1134	0.1951
0.55	282.0	0.3624	0.2602
0.65	78.0	-0.4408	0.2256
0.65	90.0	0.265	0.163
0.65	102.0	0.2282	0.2481
0.65	246.0	-0.1819	0.175
0.65	258.0	0.1842	0.1625
0.65	270.0	0.1346	0.1514
0.75	102.0	-0.1028	0.2763
0.75	114.0	-0.191	0.2228
0.75	126.0	-0.3256	0.2196
0.75	138.0	-0.0329	0.2506
0.75	150.0	0.4814	0.197
0.75	222.0	0.2336	0.2453
0.75	234.0	-0.0749	0.1819
0.75	246.0	0.1286	0.1595
0.75	258.0	-0.0015	0.1529
0.75	270.0	0.288	0.1836
0.85	114.0	0.5532	0.1912
0.85	126.0	0.1736	0.203
0.85	138.0	-0.1879	0.1672
0.85	150.0	-0.2769	0.1581
0.85	162.0	0.1374	0.2047
0.85	174.0	0.0142	0.1975
0.85	186.0	0.237	0.246
0.85	222.0	0.3205	0.2192
0.85	234.0	-0.0384	0.1981
0.85	246.0	0.2001	0.1745
0.85	258.0	0.0658	0.1703
0.95	138.0	0.4355	0.2237
0.95	150.0	-0.2472	0.2504
0.95	162.0	-0.125	0.2566

CLAS Physics Database