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Measurement E151M2468

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: 0.1064
Q2: 0.0143 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.9145

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 0.4165 0.2315
0.25 54.0 0.3061 0.2506
0.35 42.0 0.379 0.1738
0.35 54.0 -0.2796 0.1985
0.35 66.0 0.0376 0.2557
0.45 42.0 -0.226 0.194
0.45 54.0 0.1874 0.1726
0.45 258.0 -0.1007 0.2186
0.45 270.0 0.0466 0.1974
0.55 54.0 -0.0023 0.2224
0.55 246.0 -0.2266 0.1564
0.55 258.0 0.209 0.1477
0.55 270.0 -0.0532 0.1428
0.55 282.0 0.2455 0.1908
0.65 162.0 -0.0666 0.222
0.65 174.0 -0.2148 0.2368
0.65 186.0 -0.0047 0.2371
0.65 198.0 -0.2867 0.2221
0.65 210.0 -0.5219 0.2927
0.65 222.0 0.6569 0.1708
0.65 234.0 0.1735 0.1747
0.65 246.0 -0.3296 0.1285
0.65 258.0 -0.1757 0.116
0.65 270.0 -0.1389 0.135
0.65 282.0 -0.3505 0.182
0.75 138.0 -0.349 0.2244
0.75 150.0 0.3571 0.2032
0.75 162.0 -0.1356 0.1888
0.75 174.0 -0.0833 0.1541
0.75 186.0 0.1104 0.1718
0.75 198.0 0.054 0.2149
0.75 210.0 -0.0812 0.2081
0.75 222.0 -0.452 0.1884
0.75 234.0 -0.0704 0.1429
0.75 246.0 0.0744 0.1388
0.75 258.0 -0.2916 0.1301
0.75 270.0 -0.031 0.162
0.85 150.0 0.2193 0.1934
0.85 162.0 -0.5573 0.191
0.85 174.0 0.1067 0.1749
0.85 186.0 0.0552 0.169
0.85 210.0 0.1363 0.2361
0.85 222.0 0.1164 0.2361
0.85 234.0 -0.0662 0.2266
0.85 246.0 -0.2938 0.1688
0.85 258.0 0.1223 0.2288
Created in SINP MSU, CLAS Collaboration