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Measurement E151M2620

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: 0.0676
Q2: 0.0496 GeV2
W: 1445.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6115

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 0.213 0.2256
0.25 54.0 0.2204 0.2238
0.35 42.0 -0.2585 0.2245
0.35 54.0 -0.3473 0.1805
0.45 30.0 0.045 0.2395
0.45 42.0 0.0346 0.2277
0.45 54.0 -0.0351 0.2083
0.45 234.0 -0.1815 0.2367
0.45 246.0 0.0968 0.2212
0.45 258.0 0.1937 0.2081
0.55 42.0 -0.1446 0.2405
0.55 150.0 -0.0649 0.217
0.55 162.0 0.1726 0.2382
0.55 222.0 -0.0153 0.1944
0.55 234.0 -0.076 0.1885
0.55 246.0 0.1229 0.151
0.55 258.0 0.0267 0.1627
0.55 270.0 -0.0945 0.2681
0.65 150.0 0.0215 0.2063
0.65 162.0 0.3742 0.2188
0.65 174.0 -0.2764 0.2156
0.65 186.0 -0.0037 0.2639
0.65 210.0 -0.1971 0.2346
0.65 222.0 -0.1372 0.1945
0.65 234.0 -0.1446 0.1542
0.65 246.0 -0.1927 0.1537
0.65 258.0 -0.2169 0.165
0.75 138.0 0.2625 0.1955
0.75 150.0 -0.0586 0.2272
0.75 162.0 0.1773 0.1963
0.75 174.0 0.3463 0.2214
0.75 186.0 -0.0366 0.249
0.75 234.0 0.1502 0.157
0.75 246.0 -0.3152 0.1436
0.75 258.0 0.1382 0.1547
0.75 270.0 -0.2035 0.2299
0.85 222.0 -0.0521 0.1962
0.85 234.0 -0.0105 0.1805
0.85 246.0 0.1365 0.1774
0.85 258.0 -0.0706 0.1621
0.85 270.0 0.0493 0.2015
0.95 246.0 -0.2932 0.2487
0.95 258.0 -0.2928 0.256
Created in SINP MSU, CLAS Collaboration