CLAS Physics Database

Measurement E151M3611

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: ALU
εL: 0.1128
Q2: 0.2445 GeV2
W: 1775.0 GeV
Ebeam: 2.999 GeV
ε: 0.8281

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 198.0 -0.401 0.2749 0.0311
0.85 78.0 0.1789 0.2597 0.0302
0.85 102.0 -0.1213 0.2482 0.0301
0.85 186.0 0.5164 0.2532 0.0317
0.85 198.0 0.2477 0.2295 0.0304
0.85 210.0 0.1405 0.2235 0.0301
0.85 222.0 -0.2762 0.231 0.0305
0.85 234.0 -0.1894 0.2185 0.0302
0.85 246.0 0.0018 0.2813 0.03
0.95 198.0 -0.1796 0.2761 0.0302
0.95 210.0 -0.3699 0.2214 0.0309
0.95 222.0 -0.1343 0.2388 0.0301
0.95 234.0 0.257 0.2475 0.0304
0.95 246.0 0.2405 0.233 0.0304