CLAS Physics Database

Measurement E151M3398

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: 1.1922
Q2: 0.348 GeV2
W: 1235.0 GeV
Ebeam: 2.999 GeV
ε: 0.9589

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.05 66.0 0.1235 0.2592
0.15 66.0 0.3211 0.2402
0.25 66.0 -0.2609 0.249
0.35 66.0 -0.0004 0.2582
0.35 282.0 -0.6685 0.1976
0.35 294.0 -0.0516 0.2374
0.45 282.0 -0.0509 0.2248
0.45 294.0 -0.2664 0.2134
0.55 270.0 0.011 0.2224
0.55 282.0 0.1562 0.192
0.55 294.0 0.1929 0.1845
0.65 66.0 -0.3985 0.1989
0.65 78.0 -0.3 0.1995
0.65 90.0 0.153 0.2137
0.65 270.0 -0.2203 0.1702
0.65 282.0 0.3144 0.1797
0.65 294.0 -0.0106 0.1771
0.65 306.0 -0.0756 0.2706
0.75 54.0 -0.0978 0.2277
0.75 66.0 0.2466 0.1773
0.75 78.0 0.2747 0.2123
0.75 90.0 -0.2194 0.1761
0.75 102.0 -0.4093 0.2068
0.75 258.0 -0.6708 0.1681
0.75 270.0 0.0929 0.1757
0.75 282.0 -0.2973 0.1723
0.75 294.0 -0.0547 0.177
0.75 306.0 0.0799 0.221
0.85 54.0 0.0985 0.2081
0.85 66.0 0.0359 0.1946
0.85 78.0 0.1876 0.1693
0.85 90.0 0.1615 0.1887
0.85 102.0 -0.0624 0.1644
0.85 114.0 -0.0491 0.2422
0.85 258.0 -0.0385 0.2585
0.85 270.0 0.0587 0.1944
0.85 282.0 0.026 0.2193
0.85 294.0 0.235 0.1942
0.85 306.0 0.2001 0.195
0.85 318.0 -0.1057 0.2164
0.95 54.0 0.0883 0.2055
0.95 66.0 0.0296 0.2798
0.95 78.0 -0.0447 0.2296
0.95 90.0 0.0721 0.1951
0.95 102.0 -0.2163 0.2382
0.95 114.0 -0.0543 0.2621
0.95 282.0 0.2328 0.2194