CLAS Physics Database

Measurement E151M2455

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: 0.4092
Q2: 0.0496 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.904

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.45 282.0 0.2101 0.2579 0.0303
0.55 270.0 -0.1989 0.1911 0.0303
0.55 282.0 0.1713 0.1696 0.0302
0.65 258.0 -0.1187 0.2211 0.0301
0.65 270.0 -0.1094 0.1989 0.0301
0.65 282.0 0.3241 0.2139 0.0307
0.75 246.0 0.1939 0.2534 0.0302
0.75 258.0 0.0178 0.2045 0.03
0.75 270.0 0.2972 0.1711 0.0306
0.75 282.0 -0.1479 0.2514 0.0301
0.85 150.0 0.0384 0.2134 0.03
0.85 162.0 -0.0053 0.2088 0.03
0.85 174.0 -0.2291 0.2239 0.0303
0.85 186.0 -0.1905 0.1661 0.0302
0.85 198.0 -0.0302 0.24 0.03
0.85 210.0 -0.0361 0.2036 0.03
0.85 222.0 -0.3795 0.1954 0.0309
0.85 234.0 0.396 0.236 0.031
0.95 150.0 0.6077 0.1921 0.0324
0.95 162.0 -0.0677 0.2106 0.03
0.95 174.0 0.1908 0.1995 0.0302
0.95 186.0 0.6287 0.1773 0.0325
0.95 210.0 -0.4352 0.2347 0.0312
0.95 222.0 -0.2637 0.2237 0.0305