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Measurement E151M2665

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: 0.2909
Q2: 0.0415 GeV2
W: 1235.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9364

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 42.0 0.2674 0.2053
0.25 30.0 0.384 0.276
0.25 42.0 0.0273 0.1669
0.25 54.0 -0.1244 0.1904
0.45 270.0 -0.2876 0.1795
0.45 282.0 -0.3401 0.1551
0.55 258.0 0.2436 0.1421
0.55 270.0 0.0084 0.1161
0.55 282.0 -0.1803 0.1582
0.65 234.0 -0.0406 0.2695
0.65 246.0 0.1666 0.1612
0.65 258.0 0.027 0.1155
0.65 270.0 -0.1003 0.1242
0.65 282.0 -0.2403 0.1138
0.75 126.0 0.3546 0.2194
0.75 138.0 0.1483 0.1689
0.75 150.0 -0.628 0.1652
0.75 162.0 -0.2366 0.1955
0.75 222.0 -0.1427 0.3465
0.75 234.0 -0.3683 0.1901
0.75 246.0 -0.2118 0.1241
0.75 258.0 -0.1324 0.1151
0.75 270.0 0.0355 0.1102
0.75 282.0 -0.0643 0.1444
0.85 114.0 -0.3013 0.2343
0.85 126.0 0.0199 0.1768
0.85 138.0 -0.0876 0.1382
0.85 150.0 -0.1986 0.1492
0.85 162.0 0.004 0.1484
0.85 174.0 0.0011 0.1454
0.85 186.0 0.0004 0.1382
0.85 198.0 -0.1078 0.1715
0.85 210.0 0.1507 0.1878
0.85 222.0 -0.4242 0.1883
0.85 234.0 -0.1173 0.186
0.85 246.0 -0.0201 0.1453
0.85 258.0 -0.0659 0.1268
0.85 270.0 0.1524 0.139
0.85 282.0 0.1786 0.2095
0.95 138.0 0.2101 0.1819
0.95 150.0 0.6552 0.1558
0.95 162.0 0.0032 0.1698
0.95 174.0 -0.0044 0.1931
0.95 186.0 -0.3603 0.1739
0.95 198.0 -0.2124 0.3507
0.95 210.0 0.0484 0.2669
Created in SINP MSU, CLAS Collaboration