CLAS Physics Database

Measurement E151M3192

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: 0.869
Q2: 0.2445 GeV2
W: 1265.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9385

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 282.0 0.3263 0.2368
0.65 282.0 -0.2356 0.2576
0.75 90.0 0.3306 0.2407
0.75 102.0 0.056 0.2556
0.75 270.0 -0.4328 0.2403
0.75 282.0 -0.2739 0.2243
0.75 294.0 -0.4832 0.2483
0.85 270.0 0.1524 0.2429
0.85 282.0 -0.0703 0.2167
0.85 294.0 -0.1739 0.2097
0.95 78.0 -0.1878 0.2462
0.95 102.0 0.2305 0.0301
0.25 66.0 0.2511 0.2517
0.65 270.0 -0.0616 0.2331
0.65 282.0 0.0127 0.2329
0.75 78.0 -0.5035 0.2102
0.75 90.0 0.1493 0.2411
0.75 270.0 -0.0326 0.2211
0.75 282.0 -0.0768 0.2244
0.85 78.0 -0.1309 0.2486
0.85 90.0 0.2077 0.2105
0.85 102.0 -0.1001 0.2362
0.85 114.0 0.2888 0.2515
0.85 246.0 0.1581 0.2169
0.85 258.0 -0.0406 0.2468
0.85 282.0 0.1509 0.2206
0.95 270.0 -0.1171 0.2616