CLAS Physics Database

Measurement E151M2771

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: 0.3646
Q2: 0.2445 GeV2
W: 1385.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6963

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 258.0 -0.4413 0.332 0.0313
0.75 126.0 0.2194 0.3833 0.0303
0.75 258.0 0.0894 0.3672 0.0301
0.75 270.0 0.1494 0.3383 0.0301
0.85 282.0 0.2218 0.3398 0.0303
0.85 294.0 -0.5324 0.3602 0.0318
0.55 258.0 -0.109 0.2472 0.0301
0.75 246.0 -0.5632 0.2339 0.032
0.75 258.0 0.411 0.2547 0.0311
0.75 270.0 0.0553 0.2747 0.03
0.75 282.0 0.1125 0.2581 0.0301
0.85 282.0 0.3473 0.2295 0.0308
0.85 294.0 -0.3521 0.2474 0.0308
0.95 78.0 -0.0619 0.2295 0.03
0.95 258.0 -0.1347 0.251 0.0301
0.95 270.0 -0.1771 0.2451 0.0302
0.95 294.0 -0.1507 0.2499 0.0302