CLAS Physics Database

Measurement E151M2821

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: 0.0971
Q2: 0.0707 GeV2
W: 1475.0 GeV
Ebeam: 1.3383 GeV
ε: 0.7269

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 30.0 -0.435 0.3212
0.55 210.0 0.2632 0.4228
0.55 222.0 -0.294 0.3205
0.55 234.0 0.161 0.3037
0.55 246.0 -0.5794 0.2393
0.55 258.0 0.1847 0.3658
0.65 126.0 -0.0373 0.3401
0.65 138.0 -0.0875 0.3406
0.65 150.0 -0.2526 0.3545
0.65 210.0 0.1006 0.4054
0.65 222.0 0.1594 0.3482
0.65 234.0 -0.5223 0.2864
0.65 246.0 -0.2902 0.258
0.65 258.0 -0.613 0.2133
0.75 126.0 -0.2523 0.2897
0.75 138.0 0.1699 0.2975
0.75 150.0 0.349 0.3573
0.75 210.0 -0.3406 0.3184
0.75 222.0 -0.4674 0.2298
0.75 234.0 0.1187 0.2651
0.75 246.0 0.2992 0.2197
0.75 258.0 -0.2854 0.257
0.85 114.0 0.0576 0.348
0.85 222.0 0.3856 0.3012
0.85 234.0 0.1643 0.2776
0.85 246.0 -0.2636 0.2069
0.85 258.0 0.1086 0.3481
0.85 270.0 -0.3538 0.3627
0.95 114.0 -0.1305 0.3971
0.95 126.0 -0.5258 0.3243
0.95 234.0 -0.3879 0.286
0.95 246.0 0.1186 0.3655
0.95 258.0 0.0011 0.2487
0.25 42.0 0.2475 0.2637
0.55 126.0 0.2085 0.2634
0.55 138.0 -0.1826 0.2699
0.55 234.0 0.2834 0.2493
0.55 246.0 -0.1963 0.2117
0.55 258.0 0.1792 0.2522
0.65 126.0 0.1696 0.2517
0.65 138.0 0.2897 0.1952
0.65 150.0 0.3501 0.2149
0.65 162.0 -0.0817 0.2682
0.65 222.0 -0.0549 0.2045
0.65 234.0 -0.2858 0.2016
0.65 246.0 -0.0189 0.2015
0.65 258.0 -0.2165 0.2422
0.75 126.0 0.0905 0.2268
0.75 138.0 0.0262 0.2025
0.75 150.0 0.1052 0.2513
0.75 222.0 0.1648 0.1898
0.75 234.0 0.3142 0.195
0.75 246.0 -0.0074 0.19
0.75 258.0 -0.1311 0.2266
0.85 126.0 0.2026 0.2713
0.85 150.0 0.1426 0.2687
0.85 210.0 -0.1579 0.2759
0.85 222.0 -0.2558 0.2544
0.85 234.0 0.1008 0.2043
0.85 246.0 -0.1152 0.1936
0.85 258.0 -0.115 0.2041
0.95 114.0 -0.032 0.2674
0.95 234.0 -0.0292 0.2317
0.95 246.0 -0.3785 0.2401
0.95 258.0 0.4009 0.2727