CLAS Physics Database

Measurement E151M3320

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: 0.1113
Q2: 0.101 GeV2
W: 1565.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8731

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 126.0 0.2083 0.2288
0.55 270.0 0.3086 0.2163
0.55 282.0 -0.0199 0.2628
0.65 102.0 0.0623 0.2487
0.65 114.0 0.2478 0.1929
0.65 126.0 0.3311 0.2358
0.65 222.0 0.0961 0.2603
0.65 246.0 0.5151 0.2284
0.75 114.0 -0.0449 0.2514
0.75 126.0 0.3202 0.2507
0.75 138.0 -0.1514 0.2316
0.75 222.0 0.0462 0.2352
0.75 234.0 0.3102 0.242
0.75 294.0 -0.2144 0.2364
0.85 90.0 0.1825 0.202
0.85 102.0 -0.0667 0.2074
0.85 210.0 0.0878 0.2348
0.85 222.0 -0.4688 0.1693
0.85 234.0 0.2044 0.2228
0.85 246.0 -0.1048 0.2307
0.85 282.0 -0.2119 0.2541
0.95 234.0 -0.1798 0.2309
0.95 246.0 -0.2719 0.25
0.45 282.0 0.3641 0.2434
0.55 114.0 0.3108 0.253
0.55 126.0 -0.2926 0.2412
0.55 258.0 -0.1617 0.2618
0.55 270.0 -0.3079 0.2417
0.65 126.0 -0.046 0.2406
0.65 138.0 0.3022 0.2355
0.65 222.0 0.0109 0.2414
0.75 102.0 0.1504 0.2597
0.75 114.0 0.0172 0.2185
0.75 126.0 0.1917 0.2283
0.75 210.0 -0.3336 0.2315
0.75 222.0 0.1368 0.2585
0.75 234.0 0.2014 0.2465
0.75 282.0 0.3594 0.2065
0.75 294.0 -0.3982 0.2485
0.85 90.0 0.0751 0.2554
0.85 210.0 0.1163 0.2375
0.85 222.0 0.2779 0.2254
0.85 234.0 -0.0392 0.2327
0.95 210.0 0.0628 0.2628
0.95 222.0 -0.5265 0.2348
0.95 246.0 0.4051 0.246