CLAS Physics Database

Measurement E151M3269

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: 0.3245
Q2: 0.205 GeV2
W: 1445.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8968

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 102.0 0.1391 0.211 0.0301
0.65 114.0 0.7523 0.1793 0.0336
0.65 246.0 0.1552 0.1798 0.0302
0.75 90.0 0.1466 0.2323 0.0301
0.75 102.0 -0.0179 0.1505 0.0308
0.75 114.0 0.1638 0.1568 0.0302
0.75 126.0 0.2202 0.1728 0.0305
0.75 138.0 -0.0398 0.2623 0.03
0.75 234.0 0.0439 0.2312 0.03
0.75 246.0 0.2505 0.1521 0.0304
0.75 258.0 -0.0313 0.1673 0.03
0.85 114.0 -0.0471 0.2475 0.03
0.85 246.0 0.2058 0.2252 0.0303
0.85 258.0 -0.0032 0.2406 0.03
0.85 270.0 -0.2033 0.2335 0.0303
0.95 246.0 -0.3371 0.2296 0.0307
0.95 270.0 -0.5184 0.2232 0.0317
0.95 282.0 -0.0627 0.2264 0.03
0.75 270.0 0.311 0.2454 0.0306
0.85 66.0 -0.2115 0.265 0.0303
0.85 102.0 -0.0144 0.256 0.03
0.85 114.0 -0.154 0.2231 0.0302
0.85 126.0 -0.0178 0.2064 0.03
0.85 222.0 0.0053 0.2517 0.03
0.85 246.0 -0.0776 0.2179 0.03
0.85 258.0 0.4726 0.1964 0.0315
0.85 282.0 -0.504 0.2239 0.0316
0.95 222.0 0.0303 0.2561 0.03
0.95 258.0 -0.4688 0.2236 0.0314
0.95 270.0 -0.1512 0.2289 0.0302
0.95 282.0 0.2512 0.1991 0.0304