CLAS Physics Database

Measurement E151M2774

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: 0.0328
Q2: 0.0143 GeV2
W: 1415.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8369

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 42.0 -0.095 0.2479
0.55 126.0 0.4052 0.2384
0.55 138.0 -0.31 0.2647
0.55 222.0 0.1534 0.2575
0.55 234.0 0.4292 0.2182
0.55 246.0 0.3279 0.2187
0.65 126.0 0.0068 0.2474
0.65 138.0 -0.2522 0.2124
0.65 210.0 0.0971 0.2159
0.65 222.0 0.0412 0.189
0.65 234.0 -0.2026 0.1945
0.65 246.0 -0.3407 0.2214
0.75 126.0 -0.3671 0.2386
0.75 138.0 -0.1147 0.2428
0.75 150.0 -0.0786 0.2495
0.75 222.0 0.4203 0.1954
0.75 234.0 -0.4919 0.1747
0.75 246.0 -0.0715 0.2207
0.85 126.0 -0.1491 0.2699
0.85 138.0 -0.2346 0.2235
0.85 222.0 -0.245 0.2103
0.85 234.0 0.1086 0.2096
0.85 246.0 -0.0609 0.2447
0.45 42.0 -0.4732 0.2612
0.45 54.0 -0.1403 0.4541
0.55 30.0 -0.0421 0.3918
0.55 138.0 0.1462 0.3636
0.55 222.0 -0.2657 0.2746
0.55 234.0 0.3436 0.2648
0.55 246.0 -0.1872 0.3018
0.65 126.0 -0.0278 0.3699
0.65 138.0 -0.4673 0.2871
0.65 150.0 -0.0976 0.318
0.65 198.0 0.0842 0.3997
0.65 210.0 0.1088 0.2726
0.65 222.0 -0.0439 0.3238
0.65 234.0 0.7346 0.1324
0.65 246.0 0.4082 0.3326
0.75 138.0 0.7714 0.1872
0.75 150.0 0.1402 0.3754
0.75 210.0 0.4819 0.2753
0.75 222.0 0.0859 0.285
0.75 234.0 -0.2022 0.2649
0.75 246.0 -0.4861 0.3633
0.85 210.0 0.6421 0.2232
0.85 222.0 0.7547 0.1396
0.85 234.0 -0.2149 0.2394
0.85 246.0 0.1266 0.2983
0.85 258.0 -0.3775 0.3399