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Measurement E151M2985

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: 0.4829
Q2: 0.205 GeV2
W: 1355.0 GeV
Ebeam: 1.9889 GeV
ε: 0.901

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 66.0 0.0011 0.2346
0.25 294.0 -0.387 0.2576
0.35 78.0 0.4061 0.2479
0.45 78.0 -0.3556 0.2445
0.45 294.0 -0.4378 0.2306
0.65 102.0 -0.2503 0.2241
0.65 114.0 -0.0844 0.2524
0.65 270.0 -0.0764 0.2251
0.75 90.0 0.1927 0.1928
0.75 102.0 -0.2515 0.2033
0.75 114.0 0.3167 0.1856
0.75 126.0 0.398 0.2383
0.75 234.0 -0.1126 0.2317
0.75 246.0 0.2431 0.1891
0.75 258.0 0.1346 0.1862
0.75 270.0 0.3082 0.2057
0.75 282.0 -0.1792 0.2338
0.85 66.0 0.0778 0.2653
0.85 90.0 -0.2364 0.1729
0.85 102.0 0.1385 0.1739
0.85 114.0 0.3949 0.2389
0.85 126.0 -0.0618 0.2107
0.85 138.0 0.3184 0.2386
0.85 222.0 0.0706 0.2387
0.85 234.0 0.2484 0.2049
0.85 246.0 -0.3805 0.1867
0.85 258.0 0.1153 0.1821
0.85 270.0 0.036 0.2052
0.85 282.0 -0.2194 0.1798
0.85 294.0 -0.0424 0.1767
0.95 102.0 0.4337 0.1937
0.95 114.0 0.3248 0.2527
0.95 126.0 0.436 0.2097
0.95 138.0 -0.2235 0.2349
0.95 150.0 0.3117 0.2494
0.95 222.0 -0.2182 0.2242
0.95 234.0 -0.063 0.2329
0.95 246.0 0.2268 0.2187
0.95 258.0 -0.0963 0.2122
0.95 270.0 -0.1345 0.2056
0.95 282.0 0.2687 0.2412
0.95 294.0 -0.0949 0.2217
Created in SINP MSU, CLAS Collaboration