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Measurement E151M2551

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: 0.0307
Q2: 0.0101 GeV2
W: 1355.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8045

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 42.0 -0.3635 0.2028 0.0309
0.35 54.0 0.1262 0.1764 0.0301
0.45 42.0 0.0598 0.1784 0.03
0.45 54.0 0.3816 0.1769 0.031
0.55 18.0 0.1266 0.2243 0.0301
0.55 30.0 -0.1291 0.1943 0.0301
0.55 42.0 0.0392 0.1747 0.03
0.55 54.0 -0.0371 0.1702 0.03
0.55 150.0 0.1588 0.2425 0.0302
0.55 222.0 -0.0022 0.2188 0.03
0.55 234.0 -0.0862 0.1836 0.03
0.55 246.0 -0.0471 0.1966 0.03
0.55 258.0 0.0821 0.216 0.03
0.65 30.0 0.2293 0.2611 0.0303
0.65 42.0 -0.0493 0.1963 0.03
0.65 54.0 -0.1461 0.2055 0.0301
0.65 138.0 0.0875 0.2309 0.0301
0.65 150.0 -0.2906 0.2183 0.0306
0.65 162.0 0.113 0.2212 0.0301
0.65 174.0 -0.049 0.2376 0.03
0.65 210.0 -0.061 0.2459 0.03
0.65 222.0 0.0914 0.191 0.0301
0.65 234.0 0.0156 0.153 0.03
0.65 246.0 -0.1242 0.1505 0.0301
0.65 258.0 -0.3053 0.1941 0.0306
0.75 138.0 0.3468 0.235 0.0308
0.75 150.0 0.142 0.2351 0.0301
0.75 162.0 -0.2426 0.2242 0.0304
0.75 174.0 -0.0481 0.2604 0.03
0.75 222.0 0.0256 0.1731 0.03
0.75 234.0 -0.3422 0.1583 0.0308
0.75 246.0 -0.4455 0.153 0.0313
0.75 258.0 -0.0185 0.2259 0.03
0.85 210.0 -0.0511 0.2167 0.03
0.85 222.0 0.2893 0.163 0.0306
0.85 234.0 -0.0556 0.158 0.03
0.85 246.0 0.2036 0.1717 0.0303
0.85 258.0 -0.0494 0.1985 0.03
Created in SINP MSU, CLAS Collaboration