CLAS Physics Database

Measurement E151M3031

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: 0.2773
Q2: 0.1715 GeV2
W: 1445.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8733

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 294.0 -0.042 0.2804
0.15 306.0 0.1892 0.2639
0.25 66.0 0.1112 0.2322
0.25 78.0 -0.1483 0.258
0.25 294.0 -0.1167 0.2576
0.35 66.0 -0.1302 0.2355
0.35 78.0 -0.2137 0.2278
0.35 282.0 0.2653 0.2324
0.35 294.0 0.044 0.2383
0.45 66.0 0.1086 0.2662
0.45 78.0 0.1424 0.1978
0.45 90.0 -0.0322 0.2928
0.45 270.0 -0.2585 0.2414
0.45 282.0 -0.2686 0.2244
0.45 294.0 -0.0335 0.2097
0.55 78.0 -0.0689 0.2639
0.55 102.0 -0.0402 0.2708
0.55 114.0 0.2801 0.2438
0.55 282.0 0.1083 0.2742
0.65 102.0 0.2095 0.1993
0.65 114.0 -0.0978 0.1855
0.65 126.0 -0.1299 0.1911
0.65 246.0 -0.0518 0.2307
0.65 258.0 -0.2927 0.2643
0.75 90.0 0.4506 0.1918
0.75 102.0 0.5588 0.161
0.75 114.0 0.3039 0.1755
0.75 126.0 -0.1699 0.18
0.75 138.0 0.3033 0.2459
0.75 222.0 -0.4548 0.2262
0.75 234.0 0.0032 0.1948
0.75 246.0 -0.2032 0.2169
0.75 258.0 0.1732 0.1842
0.75 270.0 -0.0676 0.2604
0.85 78.0 0.4097 0.2059
0.85 90.0 0.011 0.2612
0.85 102.0 -0.0044 0.2571
0.85 114.0 0.1972 0.202
0.85 126.0 0.4812 0.1884
0.85 138.0 0.2012 0.2225
0.85 150.0 0.0004 0.2733
0.85 210.0 0.1523 0.2609
0.85 222.0 -0.2285 0.2228
0.85 234.0 -0.1155 0.2142
0.85 246.0 0.1349 0.1991
0.85 258.0 -0.0925 0.1965
0.85 270.0 -0.4055 0.1732
0.85 282.0 0.4403 0.3029
0.95 90.0 -0.0481 0.2168
0.95 210.0 0.1013 0.2596
0.95 222.0 -0.2489 0.229
0.95 234.0 -0.2224 0.2306
0.95 246.0 0.0109 0.2293
0.95 258.0 0.0196 0.1826
0.95 270.0 -0.3858 0.1722
0.95 282.0 -0.2786 0.1996