CLAS Physics Database

Measurement E151M2585

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: 0.1796
Q2: 0.101 GeV2
W: 1385.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6553

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 246.0 -0.3755 0.1925 0.0309
0.55 258.0 -0.1649 0.2607 0.0302
0.55 270.0 0.0238 0.2176 0.03
0.65 138.0 0.2759 0.2422 0.0305
0.65 246.0 0.3275 0.1778 0.0307
0.65 258.0 -0.2059 0.1952 0.0303
0.65 270.0 -0.1413 0.2043 0.0301
0.75 138.0 -0.4502 0.2213 0.0313
0.75 186.0 0.4914 0.213 0.0316
0.75 222.0 -0.3271 0.2369 0.0307
0.75 234.0 0.3561 0.2007 0.0308
0.75 246.0 -0.0944 0.2342 0.0301
0.75 258.0 -0.1409 0.1948 0.0301
0.75 270.0 0.4354 0.1858 0.0312
0.85 126.0 -0.1644 0.2357 0.0302
0.85 138.0 -0.233 0.2275 0.0304
0.85 162.0 0.2457 0.2152 0.0304
0.85 234.0 -0.1714 0.2186 0.0302
0.85 246.0 0.2169 0.2341 0.0303
0.85 258.0 -0.5273 0.1683 0.0318
0.85 270.0 -0.054 0.1774 0.03
0.85 282.0 0.0428 0.2236 0.03
0.95 162.0 0.1283 0.2558 0.0301
0.95 258.0 0.0527 0.2305 0.03