Measurement E151M1292

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:	0.1282
Q²:	0.0291 GeV²
W:	1295.0 GeV
E_beam:	1.0539 GeV
ε:	0.8517

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	42.0	0.5929	0.8333
0.25	42.0	-0.0971	0.7733
0.25	54.0	-0.3607	0.7258
0.35	30.0	-1.2956	0.7787
0.35	42.0	-1.0414	0.7868
0.35	54.0	-0.367	0.8462
0.45	30.0	0.2472	0.6404
0.45	42.0	-0.1179	0.5102
0.45	54.0	0.1362	0.7942
0.45	258.0	0.0391	0.7265
0.45	270.0	0.6186	0.6855
0.55	42.0	-1.9162	0.5903
0.55	54.0	-0.7554	0.8216
0.55	234.0	-0.3163	0.624
0.55	246.0	-0.1888	0.5236
0.55	258.0	-0.0445	0.4704
0.55	270.0	-0.0894	0.4742
0.65	138.0	0.6964	0.749
0.65	150.0	1.2545	0.7408
0.65	162.0	-0.627	0.8184
0.65	174.0	-1.1417	0.724
0.65	222.0	-0.0865	0.6509
0.65	234.0	0.681	0.5252
0.65	246.0	-0.0682	0.3854
0.65	258.0	0.3986	0.3787
0.65	270.0	0.3813	0.4575
0.65	282.0	1.2792	0.5119
0.75	126.0	-0.3341	0.8349
0.75	138.0	-0.456	0.5789
0.75	150.0	-0.0307	0.5486
0.75	162.0	0.6924	0.4648
0.75	174.0	0.409	0.4962
0.75	186.0	-0.3578	0.6564
0.75	198.0	1.6384	0.6587
0.75	210.0	-0.1121	0.751
0.75	222.0	0.5264	0.5881
0.75	234.0	0.4594	0.4281
0.75	246.0	0.3094	0.3983
0.75	258.0	0.2865	0.4098
0.75	270.0	0.4277	0.4021
0.75	282.0	-1.0015	0.622
0.85	126.0	0.851	0.7667
0.85	138.0	-0.6585	0.5907
0.85	150.0	0.7809	0.577
0.85	162.0	0.9303	0.6401
0.85	174.0	-0.0184	0.7181
0.85	186.0	-0.0961	0.6069
0.85	198.0	0.1305	0.6841
0.85	222.0	0.3602	0.6197
0.85	234.0	-0.1396	0.4843
0.85	246.0	-0.175	0.3519
0.85	258.0	0.5436	0.3669
0.85	270.0	0.636	0.476
0.85	282.0	1.1688	0.6573
0.95	138.0	0.7405	0.615

CLAS Physics Database