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Measurement E151M2488

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: 0.0709
Q2: 0.0121 GeV2
W: 1265.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8946

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 -0.0939 0.2261
0.25 54.0 0.4495 0.1926
0.35 54.0 0.2608 0.1992
0.35 66.0 -0.1135 0.2495
0.45 42.0 -0.0137 0.2375
0.45 54.0 -0.2103 0.2331
0.45 258.0 0.0424 0.2626
0.45 270.0 0.1843 0.2461
0.55 30.0 -0.1375 0.2538
0.55 42.0 -0.0646 0.2158
0.55 54.0 -0.2629 0.1697
0.55 234.0 -0.3448 0.172
0.55 246.0 0.3107 0.1757
0.55 258.0 -0.0568 0.1397
0.55 270.0 -0.0694 0.1644
0.65 150.0 -0.162 0.2139
0.65 162.0 0.3137 0.1999
0.65 174.0 -0.2544 0.1936
0.65 198.0 0.1201 0.2452
0.65 222.0 0.1653 0.1771
0.65 234.0 -0.0914 0.159
0.65 246.0 0.0732 0.1193
0.65 258.0 -0.1167 0.1301
0.65 270.0 0.1168 0.1435
0.75 138.0 0.3746 0.1968
0.75 150.0 0.0914 0.2023
0.75 162.0 -0.1957 0.1748
0.75 174.0 -0.1343 0.1881
0.75 186.0 0.125 0.179
0.75 198.0 -0.1317 0.1993
0.75 210.0 -0.1409 0.2355
0.75 222.0 0.1089 0.1909
0.75 234.0 0.04 0.1517
0.75 246.0 -0.1362 0.121
0.75 258.0 -0.1206 0.1344
0.75 270.0 0.0249 0.168
0.85 162.0 0.0497 0.232
0.85 174.0 -0.0547 0.248
0.85 186.0 0.1245 0.2277
0.85 210.0 -0.0711 0.2435
0.85 222.0 -0.2546 0.1892
0.85 234.0 0.212 0.1706
0.85 246.0 0.014 0.1662
0.85 258.0 -0.0747 0.1789
0.85 270.0 0.4689 0.2363
Created in SINP MSU, CLAS Collaboration