CLAS Physics Database

Measurement E151M2480

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: 0.5937
Q2: 0.1205 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8194

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.05 42.0 0.1243 0.2407
0.45 270.0 0.0424 0.2384
0.45 282.0 0.3043 0.2331
0.45 294.0 -0.3247 0.221
0.55 258.0 -0.4855 0.2364
0.55 270.0 0.1039 0.1972
0.55 282.0 -0.2474 0.1772
0.55 294.0 0.1364 0.2558
0.65 258.0 -0.1809 0.2044
0.65 270.0 0.0873 0.1866
0.65 282.0 -0.2939 0.1894
0.65 294.0 -0.218 0.2616
0.75 246.0 0.1635 0.2251
0.75 258.0 -0.0441 0.2096
0.75 270.0 0.2171 0.1889
0.75 282.0 -0.1886 0.2013
0.75 294.0 0.0684 0.2404
0.85 114.0 -0.3295 0.2612
0.85 138.0 0.1471 0.2108
0.85 150.0 -0.4539 0.1821
0.85 162.0 -0.3132 0.2099
0.85 174.0 0.111 0.2451
0.85 258.0 0.0367 0.2429
0.85 282.0 -0.0385 0.2406
0.95 126.0 0.2846 0.1912
0.95 138.0 -0.0029 0.2557
0.95 150.0 -0.4621 0.2248
0.95 162.0 0.2917 0.2077
0.95 186.0 -0.0326 0.2503