CLAS Physics Database

Measurement E151M2656

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: 0.9638
Q2: 0.1715 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8813

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.35 282.0 0.0083 0.4016
0.45 282.0 -0.3852 0.3214
0.45 294.0 -0.0713 0.3744
0.55 282.0 0.0692 0.3424
0.65 270.0 -0.2359 0.2593
0.65 282.0 -0.8984 0.1365
0.65 294.0 -0.2589 0.3961
0.75 270.0 0.1042 0.3392
0.75 282.0 -0.6993 0.1746
0.95 102.0 0.5314 0.2763
0.95 138.0 0.232 0.354
0.95 162.0 -0.0374 0.3901
0.35 294.0 -0.1259 0.2489
0.45 282.0 -0.1603 0.2582
0.55 270.0 -0.1283 0.2673
0.55 282.0 -0.1474 0.213
0.55 294.0 0.1077 0.2386
0.65 270.0 0.4237 0.2526
0.65 282.0 -0.2405 0.2556
0.75 270.0 -0.2759 0.2474
0.75 294.0 -0.5358 0.2257
0.85 114.0 0.3474 0.2837
0.95 90.0 -0.4309 0.2651
0.95 102.0 0.1813 0.2697
0.95 114.0 0.2407 0.2231