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 syst. uncert.
0.25 42.0 -0.2354 0.2442 0.0304
0.35 30.0 -0.3119 0.2334 0.0306
0.35 42.0 -0.4464 0.2102 0.0313
0.35 54.0 0.465 0.2074 0.0314
0.45 42.0 -0.1318 0.2089 0.0301
0.45 246.0 -0.5389 0.2277 0.0319
0.55 234.0 0.1005 0.2007 0.0301
0.55 246.0 0.108 0.1966 0.0301
0.55 258.0 -0.093 0.2202 0.0301
0.65 150.0 0.3279 0.2182 0.0307
0.65 210.0 0.3143 0.2319 0.0307
0.65 222.0 0.1101 0.2102 0.0301
0.65 234.0 -0.0705 0.1608 0.03
0.65 246.0 -0.04 0.1692 0.03
0.65 258.0 0.1673 0.1834 0.0302
0.65 270.0 0.0018 0.2441 0.03
0.75 126.0 0.2594 0.2233 0.0304
0.75 138.0 -0.0805 0.2039 0.03
0.75 150.0 -0.0041 0.2285 0.03
0.75 162.0 0.2992 0.2161 0.0306
0.75 174.0 -0.1741 0.2444 0.0302
0.75 222.0 0.1469 0.2425 0.0301
0.75 234.0 0.2954 0.1841 0.0306
0.75 246.0 0.1028 0.173 0.0301
0.75 258.0 0.3202 0.142 0.0307
0.75 270.0 0.0152 0.2113 0.03
0.85 150.0 -0.0245 0.2538 0.03
0.85 234.0 0.2288 0.1877 0.0303
0.85 246.0 -0.1848 0.1618 0.0302
0.85 258.0 -0.2061 0.1499 0.0303
0.85 270.0 -0.2881 0.1799 0.0305
0.95 150.0 -0.207 0.2452 0.0303
0.95 246.0 0.0258 0.2386 0.03
0.95 258.0 -0.0597 0.2285 0.03
0.95 270.0 0.1624 0.2335 0.0302