CLAS Physics Database

Measurement E151M2859

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: 0.0768
Q2: 0.0844 GeV2
W: 1535.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6289

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 138.0 -0.2922 0.2434
0.55 234.0 0.0803 0.2479
0.65 162.0 -0.221 0.2334
0.65 210.0 -0.5141 0.2226
0.65 222.0 -0.3762 0.2232
0.65 234.0 -0.1988 0.226
0.65 246.0 -0.2743 0.2208
0.75 150.0 -0.0205 0.2584
0.75 210.0 0.7697 0.2404
0.75 222.0 -0.3685 0.2467
0.75 246.0 -0.3012 0.2253
0.75 258.0 -0.2564 0.243
0.85 234.0 -0.1693 0.269
0.85 246.0 -0.3318 0.2338
0.85 258.0 -0.1784 0.201
0.95 114.0 0.1972 0.266
0.95 126.0 0.0159 0.2501
0.45 246.0 -0.2526 0.3332
0.55 222.0 -0.2728 0.3836
0.55 234.0 0.0238 0.3604
0.55 258.0 -0.0692 0.4163
0.65 150.0 0.267 0.3437
0.65 162.0 0.1141 0.3881
0.65 210.0 0.5434 0.2754
0.65 222.0 -0.5688 0.3327
0.65 234.0 0.743 0.2051
0.65 246.0 -0.239 0.3081
0.75 150.0 0.0143 0.3716
0.75 222.0 -0.5109 0.2421
0.75 246.0 0.4533 0.2801
0.75 258.0 -0.5749 0.25
0.85 222.0 0.1498 0.4081
0.85 234.0 -0.3753 0.3255
0.85 246.0 0.7358 0.248
0.85 258.0 0.1129 0.2873
0.95 234.0 0.0151 0.4026