Measurement E151M1431

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:	0.7216
Q²:	0.101 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.9181

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	282.0	-0.1037	0.4047	0.0306
0.55	270.0	0.1008	0.7174	0.0306
0.55	282.0	0.9702	0.5891	0.0639
0.55	294.0	-0.0213	0.7248	0.03
0.65	270.0	-0.8608	0.6352	0.0584
0.65	282.0	0.1141	0.5865	0.0307
0.75	270.0	0.0203	0.7302	0.03
0.75	282.0	0.3164	0.6916	0.0352
0.85	126.0	-0.3705	0.7276	0.0369
0.85	138.0	-0.1732	0.7946	0.0316
0.85	282.0	-0.0389	0.7412	0.0301
0.95	102.0	0.9752	0.4803	0.0642
0.95	114.0	-0.8693	0.6101	0.0588
0.95	126.0	-1.0413	0.5772	0.0676
0.95	138.0	0.939	0.511	0.0623
0.95	150.0	0.3791	0.6522	0.0372
0.95	162.0	-0.0163	0.6624	0.03
0.95	174.0	0.8388	0.5354	0.0573
0.95	186.0	0.8756	0.584	0.0591
0.95	198.0	0.7038	0.543	0.0507
0.95	210.0	-0.806	0.599	0.0556
0.45	294.0	-0.9278	0.5522	0.0632
0.55	270.0	-0.3104	0.4594	0.0353
0.55	282.0	-0.3864	0.464	0.0379
0.55	294.0	-0.5726	0.4952	0.0456
0.65	270.0	0.4966	0.4937	0.0423
0.65	282.0	-0.2622	0.5768	0.0339
0.75	270.0	0.0505	0.4389	0.0302
0.75	282.0	0.9474	0.539	0.0642
0.95	102.0	0.0569	0.5616	0.0302
0.95	114.0	0.3883	0.5208	0.038
0.95	138.0	0.5628	0.4718	0.0451
0.95	174.0	-0.7857	0.499	0.0558
0.95	186.0	0.2116	0.4663	0.0326
0.95	210.0	-0.5958	0.4451	0.0466
0.95	222.0	0.0889	0.4845	0.0305

CLAS Physics Database