CLAS Physics Database

Measurement E151M2655

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: 0.8855
Q2: 0.1435 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8961

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 282.0 -0.3256 0.2584 0.0307
0.45 282.0 -0.5817 0.2265 0.0322
0.55 270.0 0.3353 0.2505 0.0307
0.55 282.0 0.4478 0.1909 0.0313
0.55 294.0 -0.0941 0.2657 0.0301
0.65 282.0 0.1501 0.232 0.0301
0.75 270.0 0.2132 0.2687 0.0303
0.85 90.0 0.1297 0.28 0.0301
0.95 102.0 -0.0182 0.2538 0.03
0.95 114.0 0.1766 0.2459 0.0302
0.95 150.0 -0.0382 0.228 0.03
0.35 294.0 -0.257 0.384 0.0304
0.45 282.0 -0.0416 0.4036 0.03
0.45 294.0 -0.2301 0.3672 0.0304
0.55 270.0 -0.1768 0.353 0.0302
0.55 282.0 -0.5237 0.2779 0.0318
0.55 294.0 -0.1299 0.3817 0.0301
0.65 282.0 -0.569 0.1966 0.0321
0.65 294.0 -0.7831 0.163 0.0338
0.75 270.0 0.6458 0.2081 0.0327
0.85 114.0 0.5598 0.2857 0.032
0.85 126.0 0.5504 0.2657 0.032
0.95 102.0 -0.5516 0.2354 0.032
0.95 114.0 0.2704 0.3778 0.0305