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Measurement E151M2648

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: 0.3688
Q2: 0.0415 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9477

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 270.0 -0.2517 0.2675
0.55 282.0 -0.272 0.1982
0.65 258.0 0.1608 0.2236
0.65 270.0 0.3502 0.2023
0.65 282.0 -0.104 0.2247
0.75 258.0 0.1983 0.1883
0.75 270.0 -0.3459 0.2241
0.75 282.0 0.3287 0.2742
0.85 138.0 -0.1289 0.2264
0.85 150.0 0.2716 0.194
0.85 162.0 0.0477 0.2117
0.85 174.0 -0.2559 0.178
0.85 186.0 0.4322 0.2348
0.85 198.0 -0.334 0.2412
0.85 210.0 0.1605 0.2432
0.95 138.0 -0.5069 0.2531
0.95 174.0 0.0445 0.2566
0.45 282.0 -0.3002 0.3546
0.55 258.0 0.0475 0.3939
0.55 270.0 0.116 0.3241
0.55 282.0 0.0009 0.3598
0.65 246.0 -0.7494 0.2028
0.65 258.0 0.1644 0.3285
0.65 270.0 -0.1522 0.2577
0.65 282.0 -0.2792 0.3048
0.75 246.0 0.4886 0.2891
0.75 258.0 -0.5481 0.2086
0.75 270.0 0.4983 0.2242
0.85 138.0 0.2208 0.3088
0.85 150.0 0.136 0.2866
0.85 162.0 0.24 0.3365
0.85 174.0 -0.2576 0.2438
0.85 186.0 -0.1164 0.3652
0.85 198.0 -0.0564 0.3337
0.85 210.0 0.3289 0.3066
0.85 222.0 -0.0161 0.3343
0.85 234.0 0.0578 0.3613
0.85 246.0 0.0922 0.3752
0.95 150.0 0.3941 0.3265
0.95 162.0 0.5833 0.2822
0.95 174.0 -0.2573 0.3228
0.95 186.0 -0.3126 0.3352
Created in SINP MSU, CLAS Collaboration