CLAS Physics Database

Measurement E151M253

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: 0.0709
Q2: 0.0143 GeV2
W: 1295.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9232

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.65 234.0 0.1604 0.6887 0.0315
0.65 246.0 -0.211 0.5462 0.0326
0.65 258.0 2.0377 2.0377 0.1263
0.75 150.0 -0.4581 0.5383 0.0408
0.75 162.0 -0.5834 0.6727 0.0462
0.75 174.0 0.7789 0.9937 0.0557
0.75 222.0 -0.7422 0.5016 0.0538
0.75 234.0 -0.5098 0.5196 0.0429
0.75 246.0 -0.1027 0.5031 0.0306
0.75 258.0 -0.431 0.5519 0.0397
0.75 270.0 1.0445 0.8514 0.0697
0.85 246.0 0.9417 0.6875 0.0642
0.85 258.0 0.0679 0.6508 0.0303
0.55 246.0 0.4719 0.5135 0.0419
0.65 234.0 -0.7069 0.3799 0.0531
0.65 246.0 0.408 0.4277 0.0392
0.65 258.0 -0.8436 0.4201 0.0602
0.65 270.0 -0.0541 0.4802 0.0302
0.75 150.0 -0.0157 0.5044 0.03
0.75 162.0 0.7698 0.5839 0.0563
0.75 222.0 0.0211 0.4897 0.03
0.75 234.0 0.1198 0.3985 0.0309
0.75 246.0 -0.3836 0.3631 0.0383
0.75 258.0 -0.4324 0.4249 0.0402
0.75 270.0 -0.1825 0.5358 0.0321
0.85 234.0 -0.5225 0.3969 0.0441
0.85 246.0 -0.6325 0.4023 0.0493
0.85 258.0 -0.6291 0.3852 0.0492