Observation of tungsten ---> muon-neutrino decays in proton-antiproton collisions at sqrt. s = 1.8 TeV
Westhusing, Thomas Kevin
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https://hdl.handle.net/2142/23512
Description
Title
Observation of tungsten ---> muon-neutrino decays in proton-antiproton collisions at sqrt. s = 1.8 TeV
Author(s)
Westhusing, Thomas Kevin
Issue Date
1989
Doctoral Committee Chair(s)
Holloway, L.E.
Department of Study
Physics, Elementary Particles and High Energy
Discipline
Physics, Elementary Particles and High Energy
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Elementary Particles and High Energy
Language
eng
Abstract
The inclusive spectrum of charged particles resulting from the decays of stopped positively charged kaons, produced in proton-antiproton annihilations at rest, has been measured with good momentum resolution $(\delta p/p$ = 1.5%) and high statistics ($\sim$300,000 potential decays). The data were obtained with the Experiment PS183 magnetic pair spectrometer at LEAR, the Low Energy Antiproton Ring located at CERN, during two running periods: May 1985 and July-August 1986. Peaks corresponding to the reactions $K\sp+\to\pi\sp+\pi\sp0$ and $K\sp+\to\mu\sp+\nu\sb\mu$ have been measured with high precision resulting in a determination of the relative branching ratio $K\sp+\to\pi\sp+\pi\sp0$/K$\sp+\to\mu\sp+\nu\sb\mu$ =.3329 $\pm$.0047 (statistical) $\pm$.0017 (systematic). This measurement represents the most precise determination of this ratio to date.
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