CLAS Physics Database

Measurement E151M2466

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: 0.0761
Q2: 0.0101 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.9182

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 54.0 0.2394 0.2309
0.55 246.0 -0.1249 0.1894
0.55 258.0 0.1343 0.1589
0.55 270.0 -0.2446 0.1529
0.65 162.0 0.0179 0.2547
0.65 186.0 -0.1445 0.231
0.65 234.0 -0.1527 0.2069
0.65 246.0 0.0403 0.1604
0.65 258.0 0.1298 0.1425
0.65 270.0 0.3315 0.1752
0.75 162.0 -0.3442 0.2116
0.75 174.0 -0.2371 0.1997
0.75 186.0 -0.0437 0.248
0.75 198.0 0.2392 0.2578
0.75 210.0 -0.2128 0.2335
0.75 234.0 -0.2963 0.181
0.75 246.0 0.0591 0.1738
0.75 258.0 -0.3964 0.1603
0.75 270.0 -0.1067 0.2107
0.85 174.0 0.1868 0.2479