Measurement E151M1277

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:	0.3799
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_LL	uncertainty
0.05	42.0	-0.9841	0.7224
0.15	42.0	-0.2514	0.6453
0.15	54.0	1.4436	0.687
0.25	30.0	-0.4678	0.7442
0.25	42.0	-0.404	0.6181
0.25	54.0	0.5741	0.7032
0.35	42.0	-0.6123	0.6497
0.45	270.0	-0.3613	0.6243
0.45	282.0	-0.3571	0.5379
0.55	258.0	-0.2454	0.484
0.55	270.0	-0.2718	0.4265
0.55	282.0	0.1178	0.4496
0.55	294.0	0.4822	0.6855
0.65	246.0	-0.3249	0.5198
0.65	258.0	0.3897	0.3898
0.65	270.0	0.151	0.3694
0.65	282.0	0.0109	0.4157
0.65	294.0	-0.2374	0.6862
0.75	126.0	-1.0611	0.7703
0.75	138.0	-0.3274	0.6385
0.75	162.0	0.0114	0.7635
0.75	234.0	-0.6479	0.5158
0.75	246.0	-0.2738	0.504
0.75	258.0	0.3498	0.3535
0.75	270.0	-0.4764	0.4006
0.75	282.0	-0.2582	0.3853
0.75	294.0	1.2012	0.527
0.85	114.0	-0.3232	0.7292
0.85	126.0	-0.05	0.4831
0.85	138.0	-0.7427	0.4354
0.85	150.0	0.273	0.4417
0.85	162.0	1.3091	0.4223
0.85	174.0	0.6647	0.4235
0.85	186.0	0.0726	0.4942
0.85	198.0	0.7308	0.5
0.85	210.0	-0.3022	0.5887
0.85	222.0	0.6829	0.7006
0.85	234.0	-0.0219	0.5936
0.85	246.0	0.0868	0.5057
0.85	258.0	0.4917	0.4466
0.85	270.0	-0.4617	0.3988
0.85	282.0	0.7248	0.3985
0.95	102.0	0.0085	0.6023
0.95	126.0	0.1017	0.4401
0.95	138.0	0.368	0.4881
0.95	150.0	-0.0576	0.4547
0.95	162.0	0.7107	0.3899
0.95	174.0	0.1192	0.4464
0.95	186.0	-0.1304	0.4474
0.95	198.0	-0.3359	0.4278
0.95	210.0	0.2508	0.4995

CLAS Physics Database