CLAS Physics Database

Measurement E151M3297

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: 0.2491
Q2: 0.205 GeV2
W: 1505.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8719

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 114.0 -0.3079 0.2481
0.55 282.0 -0.2954 0.242
0.55 306.0 -0.2303 0.2531
0.65 102.0 0.5899 0.2016
0.75 102.0 0.0326 0.2376
0.75 114.0 0.219 0.2428
0.75 126.0 0.2761 0.2512
0.75 222.0 -0.0781 0.2178
0.75 234.0 -0.021 0.2361
0.75 246.0 -0.5611 0.1915
0.85 222.0 -0.113 0.2446
0.85 246.0 -0.1624 0.1939
0.85 258.0 -0.2221 0.2236
0.95 258.0 0.0752 0.2631
0.95 270.0 -0.4409 0.2515
0.35 282.0 -0.3004 0.2396
0.35 294.0 0.4948 0.1965
0.55 114.0 0.1333 0.2283
0.55 306.0 0.2242 0.2514
0.65 102.0 0.0989 0.2586
0.65 234.0 -0.316 0.2392
0.75 102.0 -0.1019 0.2591
0.75 114.0 -0.2227 0.1893
0.75 126.0 0.0103 0.2476
0.75 234.0 -0.3532 0.2561
0.75 246.0 -0.215 0.2314
0.75 258.0 0.2548 0.251
0.85 210.0 0.4899 0.2277
0.85 222.0 0.1887 0.2552
0.85 234.0 0.0688 0.2132
0.85 246.0 0.2668 0.2317
0.85 258.0 -0.1691 0.2648
0.95 258.0 0.1281 0.2484
0.95 270.0 0.0617 0.2596