CLAS Physics Database

Measurement E151M2473

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: 0.2379
Q2: 0.0348 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8967

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 42.0 -0.2157 0.2169
0.15 54.0 0.3446 0.2133
0.25 42.0 0.1625 0.191
0.25 54.0 0.0651 0.1747
0.35 42.0 -0.1039 0.1916
0.35 54.0 0.0711 0.1721
0.35 66.0 -0.1154 0.2752
0.45 42.0 -0.1558 0.2492
0.45 54.0 0.2817 0.2346
0.45 270.0 0.2796 0.1904
0.45 282.0 0.0358 0.1834
0.55 246.0 -0.1081 0.2298
0.55 258.0 -0.263 0.1594
0.55 270.0 -0.1824 0.1446
0.55 282.0 0.0689 0.1484
0.65 234.0 0.0653 0.2083
0.65 246.0 0.0826 0.1617
0.65 258.0 -0.1375 0.1255
0.65 270.0 -0.2625 0.1295
0.65 282.0 0.0092 0.1605
0.75 138.0 -0.0304 0.2571
0.75 150.0 0.1131 0.2112
0.75 162.0 -0.049 0.178
0.75 174.0 -0.2657 0.1937
0.75 186.0 0.1741 0.2136
0.75 198.0 0.0941 0.2058
0.75 210.0 -0.2901 0.2162
0.75 234.0 -0.4078 0.1997
0.75 246.0 -0.2399 0.1727
0.75 258.0 0.0338 0.1185
0.75 270.0 -0.1712 0.1333
0.75 282.0 -0.2897 0.1653
0.85 138.0 0.0295 0.1811
0.85 150.0 -0.0946 0.1699
0.85 162.0 0.1103 0.1513
0.85 174.0 0.1237 0.152
0.85 186.0 0.1949 0.1661
0.85 198.0 0.1838 0.1939
0.85 210.0 -0.3142 0.1938
0.85 222.0 -0.0067 0.2292
0.85 234.0 -0.2531 0.1923
0.85 246.0 -0.0055 0.1833
0.85 258.0 -0.151 0.1611
0.85 270.0 0.079 0.1765
0.95 150.0 -0.007 0.2224
0.95 162.0 0.1859 0.254
0.95 186.0 0.2246 0.2346
0.95 198.0 0.3448 0.2439