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Measurement E151M3274

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: 0.0759
Q2: 0.0415 GeV2
W: 1475.0 GeV
Ebeam: 2.2596 GeV
ε: 0.927

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.35 66.0 -0.3708 0.2493
0.35 78.0 0.4631 0.1656
0.45 78.0 -0.1341 0.2508
0.45 90.0 0.0691 0.2463
0.45 282.0 0.1306 0.252
0.55 78.0 0.2377 0.2285
0.55 282.0 -0.3671 0.2368
0.65 114.0 0.0634 0.2649
0.65 126.0 -0.1655 0.2533
0.65 222.0 0.3956 0.264
0.65 234.0 -0.5603 0.2223
0.65 246.0 0.3931 0.213
0.75 114.0 0.2458 0.2562
0.75 126.0 -0.4543 0.2361
0.75 138.0 0.4545 0.2181
0.75 222.0 0.0173 0.2663
0.75 234.0 0.1213 0.2453
0.75 246.0 -0.4149 0.2569
0.85 222.0 0.3589 0.2477
0.85 234.0 0.2572 0.2333
0.85 246.0 -0.003 0.2286
0.35 282.0 -0.5277 0.2122
0.45 78.0 -0.0942 0.2043
0.45 282.0 -0.0852 0.2321
0.45 294.0 -0.0389 0.2505
0.55 114.0 -0.5056 0.2181
0.55 126.0 0.2031 0.2495
0.55 270.0 -0.0302 0.2661
0.55 282.0 0.1562 0.2326
0.65 150.0 -0.2111 0.2384
0.65 222.0 0.0225 0.2544
0.65 234.0 -0.0993 0.2157
0.75 114.0 -0.1541 0.2071
0.75 126.0 0.4141 0.2092
0.75 138.0 0.4101 0.2482
0.75 222.0 -0.1639 0.2244
0.75 234.0 -0.2192 0.2194
0.85 222.0 -0.1502 0.244
0.85 234.0 0.2933 0.2279
0.85 246.0 0.2654 0.2375
Created in SINP MSU, CLAS Collaboration