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Study of four-lepton final states in electron-positron interactions at 29 GeV [electronic resource].

Published:
Washington, D.C : United States. Dept. of Energy. Office of Energy Research, 1989.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: (129 pages) : digital, PDF file
Additional Creators:
Stanford Linear Accelerator Center, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
This thesis presents a study of electron-positron scattering to four light leptons. The motivations behind it are twofold. Firstly, the study is a test of the theory of electron-positron interactions to 4th order in the fine structure constant α. A deviation from the theory could indicate the existence of a heavy new particle. Secondly, a measurement of these processes may prove useful in the understanding of other QED-type reactions. The method for simulating the four-lepton processes by the Monte Carlo event generator of Berends, Daverveldt and Kleiss is described. Theoretical predictions are compared to data from the Mark II and HRS experiments at the PEP storage ring. The observed events consist of four leptons at large angles. Data for all three e⁺e⁻e⁺e⁻, e⁺e⁻μ⁺μ⁻ and μ⁺μ⁻μ⁺μ⁻ processes are well described by the QED Monte Carlo calculation. The various kinematical distributions are in good agreement with QED to order α⁴. 18 refs., 64 figs., 19 tabs.
Report Numbers:
E 1.99:slac-347
slac-347
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
08/01/1989.
"slac-347"
"DE90002629"
Petradza, A.
Funding Information:
AC03-76SF00515
View MARC record | catkey: 14715331