CLAS Physics Database

Measurement E151M546

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: AUL
εL: 0.1001
Q2: 0.0348 GeV2
W: 1385.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9396

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.35 66.0 0.5274 0.6055 0.0441
0.35 78.0 -0.5602 0.4485 0.0455
0.35 282.0 -0.8642 0.4524 0.0608
0.35 294.0 -0.2381 0.6219 0.0333
0.45 66.0 -0.4492 0.5468 0.0407
0.45 78.0 0.3917 0.4409 0.0384
0.45 90.0 0.4889 0.5776 0.0424
0.45 282.0 -0.1725 0.4799 0.0318
0.45 294.0 -0.7222 0.4849 0.0534
0.45 306.0 -1.2891 0.4471 0.0844
0.55 66.0 1.6217 0.7236 0.1036
0.55 78.0 0.7137 0.5025 0.053
0.55 90.0 0.3703 0.5373 0.0376
0.55 126.0 -0.161 0.6997 0.0316
0.55 246.0 -0.1458 0.5421 0.0313
0.55 258.0 -0.1826 0.7065 0.032
0.55 270.0 0.057 0.4961 0.0302
0.55 282.0 0.0098 0.4473 0.03
0.55 294.0 -0.4106 0.457 0.0391
0.65 78.0 -0.1023 0.5058 0.0306
0.65 90.0 0.2225 0.636 0.0329
0.65 102.0 0.9064 0.6352 0.063
0.65 114.0 -0.5326 0.5856 0.0443
0.65 126.0 -0.7643 0.4943 0.0555
0.65 138.0 -0.5704 0.5214 0.046
0.65 222.0 0.6083 0.6063 0.0478
0.65 234.0 1.1318 0.4697 0.0754
0.65 246.0 0.5876 0.4674 0.0468
0.65 258.0 -0.4458 0.5567 0.0405
0.65 270.0 -0.1838 0.6529 0.032
0.65 282.0 -0.8155 0.5511 0.0582
0.75 90.0 0.2752 0.6371 0.0344
0.75 102.0 0.5605 0.7085 0.0456
0.75 114.0 0.4748 0.5023 0.0418
0.75 126.0 0.067 0.4846 0.0303
0.75 138.0 -0.4361 0.4389 0.0401
0.75 150.0 0.3437 0.5571 0.0366
0.75 210.0 -0.2141 0.5426 0.0327
0.75 222.0 0.644 0.5064 0.0495
0.75 234.0 -0.0155 0.4551 0.03
0.75 246.0 -0.3006 0.3818 0.0352
0.75 258.0 -0.2216 0.5391 0.0329
0.85 114.0 -0.4217 0.5813 0.0396
0.85 126.0 0.0842 0.5078 0.0304
0.85 138.0 0.5041 0.5322 0.043
0.85 150.0 -0.5045 0.5075 0.043
0.85 210.0 -1.0758 0.3828 0.0723
0.85 222.0 0.203 0.4695 0.0325
0.85 234.0 0.0126 0.4383 0.03
0.85 246.0 1.3815 0.406 0.0897
0.85 258.0 1.2757 0.4739 0.0836
0.95 222.0 0.8261 0.5452 0.0588