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Measurement E151M2471

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: 0.1741
Q2: 0.0245 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.9058

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 42.0 0.4542 0.1923
0.15 54.0 -0.1555 0.2576
0.25 30.0 0.296 0.2036
0.25 42.0 -0.4959 0.1631
0.25 54.0 0.2937 0.1787
0.35 30.0 -0.1985 0.2367
0.35 42.0 -0.0877 0.1735
0.35 54.0 -0.0722 0.1518
0.45 42.0 0.05 0.1664
0.45 54.0 0.0141 0.1914
0.45 66.0 0.2333 0.233
0.45 270.0 0.0033 0.1977
0.45 282.0 0.1119 0.1864
0.55 246.0 -0.1093 0.1744
0.55 258.0 0.0848 0.1266
0.55 270.0 -0.0308 0.138
0.55 282.0 0.0301 0.1569
0.65 234.0 -0.4441 0.1654
0.65 246.0 0.0782 0.1476
0.65 258.0 -0.0226 0.1157
0.65 270.0 -0.0171 0.1125
0.65 282.0 0.1533 0.1474
0.75 126.0 -0.3014 0.2131
0.75 138.0 0.1663 0.1957
0.75 150.0 0.3674 0.1554
0.75 162.0 -0.0638 0.1601
0.75 174.0 -0.0727 0.1499
0.75 186.0 0.0903 0.1924
0.75 198.0 -0.2989 0.1678
0.75 210.0 0.1012 0.1767
0.75 222.0 0.329 0.1903
0.75 234.0 0.1651 0.1583
0.75 246.0 -0.0034 0.1333
0.75 258.0 -0.0524 0.1144
0.75 270.0 0.0246 0.1128
0.75 282.0 -0.1582 0.197
0.85 138.0 0.1393 0.2095
0.85 150.0 -0.0073 0.1611
0.85 162.0 0.3453 0.1439
0.85 174.0 -0.0576 0.1488
0.85 186.0 0.0552 0.1502
0.85 198.0 -0.1422 0.1782
0.85 210.0 -0.2134 0.1976
0.85 222.0 -0.0144 0.1937
0.85 234.0 0.1475 0.1621
0.85 246.0 0.2164 0.2259
0.85 258.0 -0.0656 0.1539
0.85 270.0 0.1793 0.2063
Created in SINP MSU, CLAS Collaboration