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
-0.05 42.0 -0.0727 0.261
0.35 282.0 -0.0595 0.226
0.45 270.0 -0.1616 0.2116
0.45 282.0 -0.0736 0.165
0.45 294.0 -0.2063 0.2315
0.55 258.0 0.0988 0.2079
0.55 270.0 -0.0568 0.201
0.55 282.0 -0.1186 0.1789
0.55 294.0 0.0964 0.1988
0.65 246.0 0.0442 0.2343
0.65 258.0 -0.0277 0.2464
0.65 270.0 0.1469 0.1832
0.65 282.0 -0.3958 0.2047
0.65 294.0 -0.0439 0.221
0.75 258.0 -0.0657 0.202
0.75 270.0 0.3074 0.1905
0.75 282.0 -0.0486 0.2071
0.75 294.0 0.169 0.2117
0.85 114.0 -0.5543 0.2068
0.85 126.0 0.2369 0.1962
0.85 138.0 0.2169 0.2039
0.85 150.0 0.0738 0.2338
0.85 162.0 0.4717 0.1741
0.85 174.0 -0.2483 0.2128
0.85 186.0 0.3274 0.2164
0.85 198.0 0.0225 0.2547
0.85 210.0 -0.471 0.2183
0.85 234.0 0.259 0.2278
0.85 270.0 -0.2711 0.201
0.85 282.0 -0.4038 0.2
0.95 114.0 0.2227 0.2305
0.95 126.0 -0.1353 0.2294
0.95 138.0 0.2312 0.2032
0.95 150.0 0.3227 0.1888
0.95 162.0 -0.1425 0.208
0.95 174.0 -0.0929 0.2233
0.95 186.0 -0.1605 0.2332
0.95 198.0 0.3229 0.1899
0.95 210.0 -0.3585 0.2102