CLAS Physics Database

Measurement E151M3366

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: 0.049
Q2: 0.0707 GeV2
W: 1685.0 GeV
Ebeam: 2.2596 GeV
ε: 0.81

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 270.0 0.0817 0.2492
0.65 78.0 -0.0166 0.2571
0.65 126.0 -0.1989 0.2222
0.65 210.0 0.1167 0.2528
0.75 210.0 -0.0141 0.2356
0.75 234.0 -0.1369 0.2494
0.75 270.0 -0.1486 0.2335
0.75 282.0 0.0107 0.2439
0.85 102.0 0.5004 0.2382
0.85 114.0 0.3288 0.2111
0.85 126.0 -0.2171 0.2497
0.85 210.0 -0.3057 0.242
0.85 222.0 -0.1442 0.2221
0.45 282.0 -0.1873 0.2404
0.65 126.0 -0.4411 0.2116
0.65 198.0 0.2629 0.2564
0.75 210.0 -0.1653 0.2598
0.75 234.0 -0.0215 0.2479
0.75 270.0 -0.1691 0.2481
0.75 282.0 -0.5153 0.1753
0.75 294.0 0.4074 0.2452
0.85 102.0 -0.1576 0.2359
0.85 114.0 0.2295 0.2005
0.85 210.0 -0.1931 0.2478