CLAS Physics Database

Measurement E151M2654

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: 0.8044
Q2: 0.1205 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9081

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 282.0 0.5542 0.2492
0.45 294.0 0.2473 0.379
0.55 270.0 0.306 0.3268
0.55 282.0 -0.5603 0.248
0.55 294.0 0.4366 0.2812
0.65 270.0 -0.0001 0.3633
0.65 282.0 -0.1215 0.3432
0.75 270.0 -0.8319 0.196
0.75 282.0 -0.0782 0.3275
0.85 102.0 0.3305 0.3192
0.95 114.0 -0.0188 0.3935
0.95 126.0 0.097 0.3599
0.95 138.0 -0.2644 0.3607
0.95 150.0 -0.4862 0.2767
0.95 198.0 -0.2243 0.3769
0.35 294.0 0.2214 0.2592
0.45 282.0 0.0984 0.2473
0.55 270.0 0.3198 0.2153
0.55 282.0 -0.087 0.2258
0.55 294.0 -0.4148 0.2381
0.65 270.0 0.1366 0.2094
0.65 282.0 0.0691 0.2152
0.75 258.0 -0.0347 0.2951
0.75 270.0 0.0572 0.2467
0.75 282.0 0.1788 0.2203
0.85 102.0 0.2582 0.2625
0.85 126.0 0.1539 0.2874
0.95 114.0 0.2422 0.2441
0.95 126.0 -0.0973 0.2697
0.95 138.0 -0.2582 0.2282
0.95 150.0 -0.1947 0.236
0.95 162.0 -0.0577 0.2659
0.95 186.0 -0.262 0.2216