Measurement E151M55

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_UL
ε_L:	0.3799
Q²:	0.0844 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.8263

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.05	42.0	1.0331	0.6817
0.15	42.0	0.3067	0.5817
0.15	54.0	-0.4737	0.6319
0.25	30.0	-0.3388	0.6297
0.25	42.0	0.7151	0.5581
0.25	54.0	0.4578	0.6694
0.35	42.0	-0.7441	0.5219
0.45	270.0	-0.0891	0.5398
0.45	282.0	0.2272	0.4856
0.55	258.0	-0.687	0.3837
0.55	270.0	0.077	0.3777
0.55	282.0	0.0843	0.3975
0.55	294.0	1.5777	0.5483
0.65	246.0	-0.3462	0.433
0.65	258.0	-0.2025	0.3354
0.65	270.0	0.1938	0.3296
0.65	282.0	0.5842	0.3786
0.65	294.0	0.5089	0.6378
0.75	126.0	1.0461	0.7232
0.75	138.0	-0.3578	0.5395
0.75	162.0	0.3801	0.6898
0.75	234.0	0.1336	0.4716
0.75	246.0	-0.1985	0.4327
0.75	258.0	-0.002	0.3116
0.75	270.0	-0.2765	0.3425
0.75	282.0	0.321	0.351
0.75	294.0	0.1869	0.5135
0.85	114.0	1.3675	0.6823
0.85	126.0	0.5556	0.4372
0.85	138.0	0.819	0.4167
0.85	150.0	-0.2358	0.3775
0.85	162.0	0.4533	0.428
0.85	174.0	0.2818	0.3886
0.85	186.0	0.1217	0.4381
0.85	198.0	-0.2831	0.4254
0.85	210.0	0.5085	0.545
0.85	222.0	0.2224	0.6283
0.85	234.0	-0.9228	0.4397
0.85	246.0	-0.6231	0.3966
0.85	258.0	0.3559	0.4059
0.85	270.0	-0.2429	0.3463
0.85	282.0	0.2891	0.3664
0.95	102.0	0.4012	0.5465
0.95	126.0	0.5121	0.4035
0.95	138.0	-0.0276	0.4324
0.95	150.0	-0.4746	0.3655
0.95	162.0	-0.168	0.3549
0.95	174.0	0.7786	0.4112
0.95	186.0	0.283	0.4074
0.95	198.0	-0.1582	0.369
0.95	210.0	0.3856	0.4508

CLAS Physics Database