Measurement E151M2313

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_LL
ε_L:	0.2401
Q²:	0.2915 GeV²
W:	1595.0 GeV
E_beam:	2.999 GeV
ε:	0.8938

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	282.0	-0.2478	0.9181
0.45	90.0	-0.9494	0.9794
0.45	102.0	-1.5109	0.9271
0.45	114.0	0.7422	0.9405
0.45	270.0	0.1042	0.9438
0.45	282.0	0.0177	0.789
0.55	90.0	0.0101	0.9103
0.55	102.0	1.1981	0.8617
0.55	114.0	0.153	0.8185
0.65	90.0	-1.7428	0.8784
0.65	102.0	1.5627	0.6757
0.65	114.0	-0.3234	0.8511
0.65	126.0	-0.393	0.9978
0.65	138.0	0.8867	0.9882
0.65	210.0	2.146	0.8777
0.65	222.0	2.5254	0.7828
0.65	234.0	-1.0553	0.9802
0.65	246.0	0.5589	0.9018
0.65	258.0	-0.1917	1.0826
0.65	294.0	0.3345	0.7121
0.65	306.0	-1.1246	0.885
0.75	66.0	0.2055	0.7829
0.75	78.0	1.5557	0.9029
0.75	90.0	0.3035	0.826
0.75	102.0	1.5684	0.7243
0.75	114.0	0.5836	0.6554
0.75	126.0	-0.1482	0.9228
0.75	138.0	-0.901	1.008
0.75	186.0	1.4964	0.972
0.75	198.0	0.123	0.9041
0.75	210.0	-0.4345	0.8334
0.75	222.0	0.3867	0.823
0.75	234.0	-0.2893	0.723
0.75	246.0	0.6432	0.782
0.75	258.0	-0.135	1.1088
0.75	294.0	0.4396	0.9896
0.85	54.0	1.5245	0.8035
0.85	66.0	-1.1857	0.5764
0.85	78.0	-0.7012	0.6672
0.85	90.0	0.3328	0.8467
0.85	102.0	1.0094	0.9885
0.85	114.0	-0.3645	0.7347
0.85	126.0	-0.1325	0.9399
0.85	186.0	-0.2708	0.9156
0.85	198.0	0.4968	0.8903
0.85	210.0	0.4378	0.7771
0.85	222.0	-0.7256	0.727
0.85	234.0	0.7947	0.6871
0.85	246.0	0.9099	0.6721
0.85	258.0	-0.3057	0.6464
0.85	270.0	-0.4754	0.6508
0.85	282.0	1.5516	0.6914
0.95	66.0	-0.1705	0.9009
0.95	78.0	-0.874	0.8942
0.95	90.0	-0.4298	0.9446
0.95	198.0	-0.4775	0.8831
0.95	210.0	1.3718	0.7695
0.95	222.0	1.0035	0.7674
0.95	234.0	0.5879	0.6749
0.95	246.0	-0.801	0.6119
0.95	258.0	-0.4197	0.6638
0.95	270.0	0.1768	0.6309
0.95	282.0	-0.0935	0.5952
0.95	294.0	0.0466	0.5798
0.95	306.0	0.3022	0.6418

CLAS Physics Database