CLAS Physics Database

Measurement E151M2592

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: 0.0199
Q2: 0.0101 GeV2
W: 1415.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7165

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.35 42.0 0.1933 0.2159
0.35 54.0 0.061 0.1821
0.45 30.0 0.1766 0.235
0.45 42.0 -0.1874 0.1595
0.45 54.0 0.0308 0.1664
0.45 222.0 -0.277 0.2335
0.45 234.0 0.1054 0.2212
0.45 246.0 -0.1758 0.2324
0.55 18.0 0.1907 0.2097
0.55 30.0 -0.2367 0.198
0.55 42.0 -0.0722 0.144
0.55 54.0 0.294 0.1545
0.55 138.0 0.2596 0.2527
0.55 150.0 -0.1585 0.2108
0.55 210.0 -0.2666 0.2017
0.55 222.0 -0.2131 0.2034
0.55 234.0 0.0716 0.1573
0.55 246.0 0.4252 0.1566
0.55 258.0 -0.2448 0.2409
0.65 42.0 0.5543 0.2169
0.65 54.0 -0.094 0.225
0.65 138.0 0.3534 0.2304
0.65 150.0 0.0795 0.2181
0.65 162.0 -0.1266 0.1858
0.65 174.0 0.3376 0.2237
0.65 210.0 0.0209 0.2396
0.65 222.0 0.2262 0.1623
0.65 234.0 -0.0504 0.1568
0.65 246.0 0.4227 0.1453
0.65 258.0 -0.2045 0.2235
0.75 150.0 0.2412 0.2314
0.75 210.0 0.1053 0.2519
0.75 222.0 -0.2584 0.1972
0.75 234.0 0.0193 0.1798
0.75 246.0 -0.1879 0.1611
0.75 258.0 -0.2507 0.2321
0.85 210.0 0.1036 0.2437
0.85 222.0 -0.1967 0.1941
0.85 234.0 -0.2956 0.1559
0.85 246.0 -0.6097 0.1494