Measurement of the Branching Ratio and Form Factors for the Decay \boldmath $K_L\toπ^{\pm}π^0e^{\mp}ν_e(\barν_e)
| dc.creator | NA48 Collaboration | |
| dc.creator | Batley, J. R. | |
| dc.date | 2004-05-07 | |
| dc.date.accessioned | 2026-07-07T10:28:25Z | |
| dc.date.available | 2026-07-07T10:28:25Z | |
| dc.description | The $K_L\toπ^{\pm}π^0e^{\mp}ν_e(\barν_e)$ decay was investigated with the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The branching ratio $Br(K_L\toπ^{\pm}π^0e^{\mp}ν_e(\barν_e))=(5.21\pm 0.07_{stat}\pm 0.09_{syst})\times 10^{-5}$ was fixed from a sample of 5464 events with 62 background events. The form factors $\bar{f}_s$, $\bar{f}_p$, $λ_g$ and $\bar{h}$ were found to be in agreement with previous measurements but with higher accuracy. The coupling parameter of the chiral Lagrangian $L_3=(-4.1\pm 0.2)\times 10^{-3}$ was evaluated from the data. | |
| dc.description | 12 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0405010 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0405010 | |
| dc.identifier | Phys.Lett.B595:75-85,2004 | |
| dc.identifier | doi:10.1016/j.physletb.2004.05.026 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177439 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the Branching Ratio and Form Factors for the Decay \boldmath $K_L\toπ^{\pm}π^0e^{\mp}ν_e(\barν_e) | |
| dc.type | text |