CLAS Physics Database

Measurement E151M3218

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: 0.6897
Q2: 0.2915 GeV2
W: 1325.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9145

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 90.0 -0.0911 0.2532 0.0301
0.75 102.0 0.0151 0.2551 0.03
0.75 246.0 -0.628 0.2342 0.0325
0.85 90.0 0.0313 0.2323 0.03
0.85 282.0 -0.1524 0.2535 0.0302
0.85 294.0 0.3741 0.2182 0.0309
0.85 306.0 0.2193 0.2463 0.0303
0.65 102.0 -0.0178 0.2307 0.03
0.65 258.0 -0.0041 0.253 0.03
0.65 270.0 0.1253 0.2475 0.0301
0.75 102.0 0.2949 0.2364 0.0306
0.85 78.0 0.1775 0.2419 0.0302
0.85 90.0 -0.2484 0.2361 0.0304
0.85 102.0 0.3349 0.2457 0.0307
0.85 114.0 -0.0268 0.2461 0.03
0.85 270.0 0.2507 0.2287 0.0304
0.85 282.0 -0.1292 0.2266 0.0301
0.85 294.0 0.1313 0.2142 0.0301
0.95 258.0 0.3747 0.2317 0.0309
0.95 282.0 -0.0239 0.256 0.03