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
0.65 102.0 0.1391 0.211
0.65 114.0 0.7523 0.1793
0.65 246.0 0.1552 0.1798
0.75 90.0 0.1466 0.2323
0.75 102.0 -0.0179 0.1505
0.75 114.0 0.1638 0.1568
0.75 126.0 0.2202 0.1728
0.75 138.0 -0.0398 0.2623
0.75 234.0 0.0439 0.2312
0.75 246.0 0.2505 0.1521
0.75 258.0 -0.0313 0.1673
0.85 114.0 -0.0471 0.2475
0.85 246.0 0.2058 0.2252
0.85 258.0 -0.0032 0.2406
0.85 270.0 -0.2033 0.2335
0.95 246.0 -0.3371 0.2296
0.95 270.0 -0.5184 0.2232
0.95 282.0 -0.0627 0.2264
0.75 270.0 0.311 0.2454
0.85 66.0 -0.2115 0.265
0.85 102.0 -0.0144 0.256
0.85 114.0 -0.154 0.2231
0.85 126.0 -0.0178 0.2064
0.85 222.0 0.0053 0.2517
0.85 246.0 -0.0776 0.2179
0.85 258.0 0.4726 0.1964
0.85 282.0 -0.504 0.2239
0.95 222.0 0.0303 0.2561
0.95 258.0 -0.4688 0.2236
0.95 270.0 -0.1512 0.2289
0.95 282.0 0.2512 0.1991