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Measurement E151M3228

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: 0.4961
Q2: 0.205 GeV2
W: 1355.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9257

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 90.0 0.2164 0.2558
0.65 102.0 -0.0131 0.2154
0.65 114.0 -0.1135 0.2583
0.65 258.0 0.1425 0.15
0.65 270.0 0.0534 0.18
0.75 90.0 -0.0221 0.151
0.75 102.0 0.1035 0.1437
0.75 114.0 0.0682 0.1764
0.75 126.0 0.2751 0.2596
0.75 246.0 0.1351 0.161
0.75 258.0 -0.0725 0.2239
0.75 270.0 -0.2101 0.1764
0.75 282.0 -0.0383 0.1792
0.85 90.0 0.1268 0.2174
0.85 102.0 0.1875 0.1538
0.85 114.0 -0.0594 0.1371
0.85 126.0 0.2208 0.1675
0.85 222.0 0.158 0.2522
0.85 234.0 0.3376 0.1639
0.85 246.0 0.2563 0.1472
0.85 258.0 0.303 0.141
0.85 270.0 -0.1554 0.1712
0.85 282.0 -0.1388 0.1444
0.95 114.0 -0.5529 0.2229
0.95 126.0 0.1611 0.2417
0.95 270.0 0.1536 0.2315
0.95 282.0 0.3862 0.238
0.95 294.0 -0.0898 0.2087
0.95 306.0 -0.1776 0.253
0.85 294.0 -0.1772 0.2141
0.95 102.0 0.0949 0.2361
0.95 138.0 0.1853 0.24
0.95 234.0 -0.2158 0.252
0.95 258.0 -0.0923 0.1987
0.95 270.0 0.2064 0.2155
0.95 282.0 0.4144 0.2068
0.95 294.0 -0.3139 0.1959
0.95 306.0 0.0573 0.2612
Created in SINP MSU, CLAS Collaboration