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Measurement E151M2470

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: 0.1483
Q2: 0.0205 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.9092

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 30.0 0.0448 0.2381
0.25 42.0 -0.0774 0.2014
0.25 54.0 0.169 0.1787
0.35 30.0 0.1902 0.2205
0.35 42.0 0.1129 0.1643
0.35 54.0 0.0573 0.1902
0.45 42.0 0.0978 0.1595
0.45 54.0 -0.0047 0.1664
0.45 66.0 0.0583 0.226
0.45 246.0 -0.1383 0.2632
0.45 258.0 0.0681 0.2111
0.45 270.0 -0.0572 0.1698
0.45 282.0 -0.1836 0.1796
0.55 234.0 0.3483 0.2402
0.55 246.0 -0.24 0.1568
0.55 258.0 -0.0996 0.1345
0.55 270.0 -0.0414 0.1319
0.55 282.0 -0.1202 0.1567
0.65 150.0 -0.0143 0.2246
0.65 162.0 -0.3615 0.2334
0.65 174.0 -0.1872 0.2383
0.65 186.0 -0.2729 0.2291
0.65 198.0 -0.3688 0.2251
0.65 234.0 -0.0872 0.176
0.65 246.0 -0.0714 0.1274
0.65 258.0 -0.0497 0.1073
0.65 270.0 -0.0329 0.1081
0.65 282.0 0.2481 0.1603
0.75 138.0 0.37 0.203
0.75 150.0 0.1252 0.1846
0.75 162.0 -0.0629 0.166
0.75 174.0 0.1992 0.143
0.75 186.0 -0.1037 0.1474
0.75 198.0 0.1262 0.1585
0.75 210.0 -0.1431 0.1962
0.75 222.0 -0.2743 0.1707
0.75 234.0 -0.0534 0.1574
0.75 246.0 0.1869 0.1172
0.75 258.0 0.001 0.1135
0.75 270.0 0.0251 0.1446
0.75 282.0 -0.3688 0.1829
0.85 138.0 0.4101 0.222
0.85 150.0 -0.0801 0.1686
0.85 162.0 0.1482 0.1702
0.85 174.0 0.0276 0.1441
0.85 186.0 -0.248 0.1648
0.85 198.0 -0.1434 0.1796
0.85 210.0 0.0559 0.223
0.85 222.0 -0.0372 0.2239
0.85 234.0 -0.3035 0.161
0.85 246.0 -0.1695 0.1632
0.85 258.0 0.1417 0.1597
0.85 270.0 0.1038 0.2351
Created in SINP MSU, CLAS Collaboration