CLAS Physics Database

Measurement E151M2603

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: 0.1123
Q2: 0.0707 GeV2
W: 1415.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6408

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 -0.2354 0.2442
0.35 30.0 -0.3119 0.2334
0.35 42.0 -0.4464 0.2102
0.35 54.0 0.465 0.2074
0.45 42.0 -0.1318 0.2089
0.45 246.0 -0.5389 0.2277
0.55 234.0 0.1005 0.2007
0.55 246.0 0.108 0.1966
0.55 258.0 -0.093 0.2202
0.65 150.0 0.3279 0.2182
0.65 210.0 0.3143 0.2319
0.65 222.0 0.1101 0.2102
0.65 234.0 -0.0705 0.1608
0.65 246.0 -0.04 0.1692
0.65 258.0 0.1673 0.1834
0.65 270.0 0.0018 0.2441
0.75 126.0 0.2594 0.2233
0.75 138.0 -0.0805 0.2039
0.75 150.0 -0.0041 0.2285
0.75 162.0 0.2992 0.2161
0.75 174.0 -0.1741 0.2444
0.75 222.0 0.1469 0.2425
0.75 234.0 0.2954 0.1841
0.75 246.0 0.1028 0.173
0.75 258.0 0.3202 0.142
0.75 270.0 0.0152 0.2113
0.85 150.0 -0.0245 0.2538
0.85 234.0 0.2288 0.1877
0.85 246.0 -0.1848 0.1618
0.85 258.0 -0.2061 0.1499
0.85 270.0 -0.2881 0.1799
0.95 150.0 -0.207 0.2452
0.95 246.0 0.0258 0.2386
0.95 258.0 -0.0597 0.2285
0.95 270.0 0.1624 0.2335