CLAS Physics Database

Measurement E151M3256

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: 0.4141
Q2: 0.2445 GeV2
W: 1415.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8977

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.75 90.0 -0.1457 0.2378
0.75 102.0 -0.1768 0.2601
0.75 126.0 0.2679 0.2529
0.75 234.0 -0.307 0.2409
0.75 258.0 0.3446 0.2113
0.75 270.0 -0.1982 0.2482
0.85 138.0 -0.0365 0.254
0.85 234.0 0.1635 0.2453
0.85 246.0 0.1057 0.2612
0.85 270.0 -0.2596 0.2416
0.85 282.0 -0.1604 0.245
0.85 294.0 0.1505 0.2461
0.95 66.0 0.3683 0.2429
0.95 294.0 0.0209 0.2603
0.65 90.0 0.0762 0.2482
0.65 102.0 -0.0404 0.2485
0.65 246.0 -0.2159 0.2642
0.75 114.0 0.1929 0.2197
0.75 126.0 -0.403 0.2206
0.75 246.0 0.0001 0.2388
0.75 258.0 0.1705 0.2558
0.85 66.0 -0.0997 0.2569
0.85 90.0 -0.2871 0.2421
0.85 102.0 -0.1453 0.1959
0.85 114.0 0.2885 0.2053
0.85 246.0 -0.1931 0.2537
0.85 258.0 0.219 0.2102
0.85 270.0 0.0482 0.2436
0.85 282.0 0.1125 0.2474
0.95 258.0 0.0274 0.2592
0.95 270.0 -0.284 0.2479
0.95 282.0 -0.0517 0.2299
0.95 294.0 0.0437 0.2512