CLAS Physics Database

Measurement E151M3476

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: 0.5435
Q2: 0.496 GeV2
W: 1445.0 GeV
Ebeam: 2.999 GeV
ε: 0.903

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.15 294.0 0.3442 0.2359 0.0308
0.45 90.0 -0.6249 0.2007 0.0325
0.45 102.0 -0.4122 0.2424 0.0311
0.55 78.0 0.1492 0.2168 0.0301
0.55 90.0 -0.5532 0.2149 0.032
0.55 102.0 0.0036 0.2184 0.03
0.65 54.0 -0.1621 0.2705 0.0302
0.65 78.0 0.1782 0.2065 0.0302
0.65 90.0 -0.1521 0.2196 0.0302
0.65 102.0 -0.298 0.2555 0.0306
0.65 114.0 0.2216 0.2403 0.0303
0.65 258.0 0.0272 0.2576 0.03
0.65 270.0 -0.1815 0.2475 0.0302
0.75 54.0 0.0718 0.2596 0.03
0.75 78.0 -0.0046 0.2154 0.03
0.75 90.0 0.0202 0.2208 0.03
0.75 102.0 0.2036 0.215 0.0303
0.75 114.0 0.3103 0.2143 0.0306
0.75 222.0 -0.2743 0.2624 0.0305
0.75 246.0 0.2213 0.2347 0.0303
0.75 258.0 -0.3837 0.1941 0.031
0.75 270.0 -0.2687 0.1859 0.0305
0.75 282.0 0.0894 0.2477 0.0301
0.85 54.0 0.1695 0.2057 0.0302
0.85 78.0 -0.1448 0.2415 0.0301
0.85 90.0 -0.0773 0.2151 0.03
0.85 102.0 -0.1321 0.2251 0.0301
0.85 210.0 0.138 0.2424 0.0301
0.85 222.0 -0.1122 0.2341 0.0301
0.85 234.0 0.1104 0.2381 0.0301
0.85 246.0 0.1223 0.2058 0.0301
0.85 258.0 -0.2376 0.2406 0.0304
0.85 270.0 -0.0856 0.242 0.03
0.85 282.0 0.115 0.2275 0.0301
0.85 294.0 -0.1943 0.2298 0.0303
0.85 306.0 0.1626 0.2003 0.0302
0.85 318.0 -0.1428 0.2047 0.0301
0.95 234.0 0.0559 0.2635 0.03
0.95 258.0 0.3543 0.2147 0.0308
0.95 282.0 0.0353 0.2563 0.03
0.95 306.0 0.1105 0.2596 0.0301
0.95 318.0 -0.1297 0.2146 0.0301
0.95 330.0 0.0891 0.2514 0.0301