Measurement E151M1336

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:	0.0971
Q²:	0.0348 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.777

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	42.0	-0.6451	1.0117
0.25	42.0	0.0906	0.8118
0.25	54.0	-0.3132	0.861
0.35	30.0	0.8233	0.7568
0.35	42.0	0.6089	0.8539
0.35	54.0	-0.9298	0.8734
0.45	30.0	-0.5315	0.7229
0.45	42.0	0.4844	0.6997
0.45	54.0	1.5869	0.7169
0.45	246.0	-0.6967	0.8652
0.45	258.0	-0.403	0.8601
0.55	42.0	-1.2936	0.7278
0.55	54.0	-1.3935	0.7152
0.55	234.0	-0.2723	0.7176
0.55	246.0	-0.9065	0.6861
0.55	258.0	-0.2269	0.5741
0.55	270.0	-0.0235	0.7443
0.65	138.0	-0.1526	0.7769
0.65	150.0	1.1328	0.8634
0.65	222.0	0.3799	0.6788
0.65	234.0	0.3051	0.5878
0.65	246.0	0.276	0.4539
0.65	258.0	0.635	0.473
0.65	270.0	-0.0624	0.7003
0.75	126.0	0.9171	0.93
0.75	138.0	-0.0721	0.7094
0.75	150.0	1.2244	0.6835
0.75	162.0	-0.8393	0.7028
0.75	174.0	0.416	0.753
0.75	186.0	0.0656	0.8967
0.75	210.0	-0.6256	0.9176
0.75	222.0	0.1273	0.7255
0.75	234.0	0.547	0.5114
0.75	246.0	-0.4933	0.493
0.75	258.0	-0.106	0.4521
0.75	270.0	-0.0558	0.5761
0.85	126.0	1.2804	0.7986
0.85	138.0	-0.1518	0.9232
0.85	162.0	1.5041	0.7336
0.85	186.0	-1.4127	0.7452
0.85	222.0	2.2054	0.6387
0.85	234.0	1.1161	0.5921
0.85	246.0	0.1859	0.473
0.85	258.0	-0.0808	0.4817
0.85	270.0	0.5002	0.5828
0.95	138.0	0.5935	0.5893
0.95	162.0	0.2783	0.7489
0.95	234.0	-1.0248	0.6431
0.95	246.0	-0.4157	0.6121
0.95	258.0	-1.225	0.5979

CLAS Physics Database