Measurement E151M1409

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:	0.0176
Q²:	0.0143 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.5972

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	42.0	-0.6723	0.7596	0.0816
0.25	54.0	0.542	0.8636	0.0681
0.35	42.0	-0.0476	0.6362	0.0305
0.35	54.0	1.1034	0.5265	0.128
0.35	66.0	-1.0037	0.6803	0.1171
0.45	42.0	-0.6654	0.8481	0.0808
0.45	54.0	0.3124	0.636	0.0463
0.45	66.0	0.2492	0.727	0.0411
0.45	222.0	-0.4179	0.8256	0.0559
0.45	234.0	-0.1365	0.7441	0.0337
0.45	246.0	-1.6451	0.6096	0.188
0.55	42.0	0.0874	0.726	0.0316
0.55	54.0	0.2584	0.7009	0.0418
0.55	138.0	0.7552	0.8936	0.0903
0.55	174.0	0.9107	0.8495	0.107
0.55	222.0	-0.8563	0.623	0.1011
0.55	234.0	-1.4153	0.5541	0.1624
0.55	246.0	0.4517	0.6918	0.0591
0.55	258.0	0.0246	0.7289	0.0301
0.65	150.0	-0.1019	0.7246	0.0321
0.65	162.0	-0.0062	0.8064	0.03
0.65	174.0	0.4709	0.8137	0.061
0.65	186.0	-0.2436	0.8473	0.0407
0.65	210.0	-0.3141	0.6533	0.0464
0.65	222.0	-1.5734	0.5828	0.18
0.65	234.0	0.7515	0.5815	0.0899
0.65	246.0	-0.4539	0.6643	0.0593
0.65	258.0	-0.9391	0.7275	0.1101
0.75	162.0	0.8363	0.7863	0.099
0.75	174.0	-1.8352	0.691	0.2091
0.75	222.0	-0.7266	0.5861	0.0873
0.75	234.0	1.0613	0.5589	0.1234
0.75	246.0	-0.8715	0.4854	0.1028
0.75	258.0	-0.4938	0.6962	0.0633
0.85	222.0	-0.3411	0.7137	0.0488
0.85	234.0	0.2457	0.5916	0.0408
0.85	246.0	-0.8581	0.5976	0.1013
0.85	258.0	0.4492	0.6947	0.0589

CLAS Physics Database