CLAS Physics Database

Measurement E151M2697

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: 0.0709
Q2: 0.0143 GeV2
W: 1295.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9232

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 234.0 0.2954 0.3076 0.0306
0.65 246.0 -0.2674 0.2794 0.0305
0.65 258.0 -0.1373 0.2633 0.0301
0.75 150.0 0.259 0.2919 0.0304
0.75 162.0 -0.5996 0.3359 0.0323
0.75 174.0 0.0044 0.3927 0.03
0.75 222.0 0.3016 0.3119 0.0306
0.75 234.0 -0.3038 0.3121 0.0306
0.75 246.0 0.1623 0.2619 0.0302
0.75 258.0 -0.4777 0.2684 0.0315
0.75 270.0 -0.3719 0.314 0.0309
0.85 246.0 0.4033 0.2686 0.0311
0.85 258.0 0.1046 0.3473 0.0301
0.55 246.0 -0.3127 0.2484 0.0306
0.65 234.0 -0.129 0.1956 0.0301
0.65 246.0 -0.4925 0.2026 0.0316
0.65 258.0 0.0433 0.2259 0.03
0.65 270.0 -0.3817 0.2404 0.031
0.75 150.0 0.2699 0.237 0.0305
0.75 162.0 0.0585 0.2873 0.03
0.75 222.0 -0.0408 0.2425 0.03
0.75 234.0 -0.3657 0.1906 0.0309
0.75 246.0 0.1589 0.1845 0.0302
0.75 258.0 -0.2286 0.2134 0.0303
0.75 270.0 0.1252 0.27 0.0301
0.85 234.0 -0.1499 0.2113 0.0301
0.85 246.0 -0.0346 0.2175 0.03
0.85 258.0 -0.121 0.2096 0.0301