CLAS Physics Database

Measurement E151M2482

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: 0.6993
Q2: 0.1715 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7716

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
-0.05 42.0 -0.0727 0.261 0.03
0.35 282.0 -0.0595 0.226 0.03
0.45 270.0 -0.1616 0.2116 0.0302
0.45 282.0 -0.0736 0.165 0.03
0.45 294.0 -0.2063 0.2315 0.0303
0.55 258.0 0.0988 0.2079 0.0301
0.55 270.0 -0.0568 0.201 0.03
0.55 282.0 -0.1186 0.1789 0.0301
0.55 294.0 0.0964 0.1988 0.0301
0.65 246.0 0.0442 0.2343 0.03
0.65 258.0 -0.0277 0.2464 0.03
0.65 270.0 0.1469 0.1832 0.0301
0.65 282.0 -0.3958 0.2047 0.031
0.65 294.0 -0.0439 0.221 0.03
0.75 258.0 -0.0657 0.202 0.03
0.75 270.0 0.3074 0.1905 0.0306
0.75 282.0 -0.0486 0.2071 0.03
0.75 294.0 0.169 0.2117 0.0302
0.85 114.0 -0.5543 0.2068 0.032
0.85 126.0 0.2369 0.1962 0.0304
0.85 138.0 0.2169 0.2039 0.0303
0.85 150.0 0.0738 0.2338 0.03
0.85 162.0 0.4717 0.1741 0.0314
0.85 174.0 -0.2483 0.2128 0.0304
0.85 186.0 0.3274 0.2164 0.0307
0.85 198.0 0.0225 0.2547 0.03
0.85 210.0 -0.471 0.2183 0.0314
0.85 234.0 0.259 0.2278 0.0304
0.85 270.0 -0.2711 0.201 0.0305
0.85 282.0 -0.4038 0.2 0.0311
0.95 114.0 0.2227 0.2305 0.0303
0.95 126.0 -0.1353 0.2294 0.0301
0.95 138.0 0.2312 0.2032 0.0304
0.95 150.0 0.3227 0.1888 0.0307
0.95 162.0 -0.1425 0.208 0.0301
0.95 174.0 -0.0929 0.2233 0.0301
0.95 186.0 -0.1605 0.2332 0.0302
0.95 198.0 0.3229 0.1899 0.0307
0.95 210.0 -0.3585 0.2102 0.0308