CLAS Physics Database

Measurement E151M3434

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: 0.3554
Q2: 0.1205 GeV2
W: 1355.0 GeV
Ebeam: 2.999 GeV
ε: 0.9699

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 258.0 -0.2745 0.2684
0.65 270.0 -0.1447 0.2654
0.75 90.0 0.2543 0.2132
0.75 102.0 0.2484 0.2575
0.75 114.0 0.1364 0.2176
0.75 246.0 -0.2342 0.2083
0.75 258.0 -0.2046 0.2273
0.75 270.0 -0.2349 0.2468
0.75 282.0 0.3187 0.2572
0.85 90.0 0.0208 0.2772
0.85 102.0 0.2462 0.2027
0.85 114.0 0.3956 0.2158
0.85 126.0 -0.1993 0.1816
0.85 138.0 0.5323 0.183
0.85 222.0 -0.3359 0.2092
0.85 234.0 0.0028 0.2459
0.85 246.0 -0.0767 0.2186
0.85 258.0 -0.452 0.1729
0.85 270.0 0.1286 0.2358
0.85 282.0 -0.2447 0.2067
0.95 102.0 0.5682 0.2405
0.95 114.0 -0.0803 0.242
0.95 258.0 -0.1529 0.2451
0.95 270.0 0.1775 0.2256
0.95 282.0 0.1783 0.2466
0.95 294.0 -0.2022 0.2773