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Measurement E151M2617

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: 0.0428
Q2: 0.0291 GeV2
W: 1445.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6382

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 0.1217 0.2016
0.25 54.0 -0.19 0.2127
0.35 30.0 -0.1828 0.2533
0.35 42.0 0.2218 0.197
0.35 54.0 -0.1422 0.1549
0.45 30.0 0.5158 0.2232
0.45 42.0 0.1119 0.189
0.45 54.0 -0.2577 0.1514
0.45 66.0 -0.0725 0.2508
0.45 246.0 -0.0016 0.1992
0.45 258.0 0.1239 0.2589
0.55 30.0 0.0414 0.2503
0.55 42.0 -0.1277 0.1905
0.55 54.0 0.0177 0.1859
0.55 150.0 0.0666 0.2201
0.55 162.0 -0.321 0.253
0.55 210.0 -0.5507 0.216
0.55 222.0 0.4194 0.1822
0.55 234.0 0.0832 0.1735
0.55 246.0 0.135 0.1688
0.55 258.0 -0.0407 0.2151
0.65 150.0 0.0504 0.2174
0.65 162.0 -0.1733 0.2082
0.65 174.0 0.3092 0.198
0.65 210.0 -0.082 0.2315
0.65 222.0 0.2198 0.1901
0.65 234.0 -0.0171 0.1548
0.65 246.0 -0.2556 0.1383
0.65 258.0 -0.3799 0.173
0.75 42.0 0.1924 0.2466
0.75 138.0 -0.1005 0.2407
0.75 150.0 0.1147 0.2346
0.75 162.0 -0.169 0.2318
0.75 174.0 0.3576 0.2419
0.75 210.0 0.2609 0.2458
0.75 222.0 0.0528 0.1875
0.75 234.0 0.134 0.1962
0.75 246.0 -0.1411 0.1311
0.75 258.0 0.1427 0.1539
0.85 222.0 -0.5112 0.1907
0.85 234.0 -0.0806 0.166
0.85 246.0 0.0909 0.1619
0.85 258.0 -0.0661 0.1947
Created in SINP MSU, CLAS Collaboration