Measurement E151M134

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:	0.0668
Q²:	0.0291 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.741

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	30.0	1.4314	0.878
0.25	42.0	0.8981	0.8324
0.25	54.0	0.7677	0.8535
0.35	30.0	-1.3869	0.6355
0.35	42.0	0.1812	0.5477
0.35	54.0	0.2884	0.5706
0.35	66.0	-0.0357	0.8492
0.45	18.0	0.2898	0.7599
0.45	30.0	0.5652	0.5738
0.45	42.0	-0.1814	0.5577
0.45	54.0	0.834	0.6579
0.45	234.0	0.2241	0.8265
0.45	246.0	2.0044	0.8266
0.45	258.0	-0.8859	0.7463
0.55	30.0	1.6436	0.8816
0.55	42.0	0.3124	0.5809
0.55	54.0	1.112	0.6215
0.55	138.0	-0.3409	0.8426
0.55	222.0	-0.1483	0.6522
0.55	234.0	-0.1596	0.609
0.55	246.0	1.1064	0.5558
0.55	258.0	-0.6705	0.4567
0.65	138.0	0.9318	0.7376
0.65	150.0	-0.5307	0.6553
0.65	162.0	0.549	0.8049
0.65	174.0	0.5913	0.7957
0.65	210.0	1.7732	0.8036
0.65	222.0	-0.0384	0.5328
0.65	234.0	0.2955	0.4411
0.65	246.0	0.1881	0.5326
0.65	258.0	-0.0634	0.4674
0.65	270.0	-0.1728	0.6105
0.75	138.0	-0.7132	0.6134
0.75	150.0	-0.4598	0.5426
0.75	162.0	0.5188	0.6349
0.75	174.0	-0.9891	0.6114
0.75	186.0	1.1502	0.7552
0.75	222.0	0.5394	0.6401
0.75	234.0	-0.2532	0.4532
0.75	246.0	-1.0075	0.3891
0.75	258.0	0.3539	0.4776
0.75	270.0	0.1689	0.6436
0.85	222.0	0.216	0.6603
0.85	234.0	-0.6867	0.405
0.85	246.0	0.0833	0.4202
0.85	258.0	0.3913	0.4618
0.85	270.0	0.7964	0.6028
0.95	234.0	0.2845	0.6253
0.95	246.0	-0.4916	0.5099
0.95	258.0	0.4164	0.5781

CLAS Physics Database