CLAS Physics Database

Measurement E151M2462

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: 0.8733
Q2: 0.1715 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7985

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.35 282.0 -0.1278 0.2557
0.35 294.0 -0.0418 0.2436
0.45 282.0 -0.1774 0.2043
0.45 294.0 -0.1317 0.2281
0.55 270.0 0.2126 0.2049
0.55 282.0 -0.3014 0.1868
0.55 294.0 -0.3136 0.2453
0.65 270.0 -0.3947 0.1905
0.65 282.0 -0.2057 0.1982
0.65 294.0 -0.3535 0.2246
0.75 270.0 -0.0229 0.217
0.75 294.0 -0.0406 0.2605
0.85 126.0 -0.1079 0.2358
0.85 138.0 0.0329 0.2368
0.85 150.0 -0.2553 0.2351
0.85 222.0 -0.1472 0.2329
0.95 114.0 0.1845 0.2627
0.95 138.0 0.2127 0.22
0.95 150.0 0.2569 0.2369
0.95 162.0 0.0129 0.2352
0.95 174.0 -0.216 0.2247
0.95 186.0 -0.585 0.2063
0.95 198.0 -0.0446 0.2621
0.95 222.0 -0.1432 0.2227