Item Details

Print View

Measuring the Pion Substructure With Radiative Positronic Pion Decays

Alonzi III, Loreto Peter
Format
Thesis/Dissertation; Online
Author
Alonzi III, Loreto Peter
Advisor
Krushkal, Slava
Paschke, Kent
Liuti, Simonetta
Pocanic, Dinko
Abstract
This dissertation presents an analysis of the PEN data from 2008 searching for the rare decay π + → e + νγ. The region of phase space was E γ > 10MeV and an opening angle of θ eγ > 40 ◦ . The goal was to measure the form factors of the pion, F A and F V . From an observation of 3,884 events we evaluated values of F A = 0.0193 ± 0.008 and F V = 0.0191 ± 0.008. For historical comparison the value of γ ≡ F A /F V was also calculated assuming the Conserved Vector Current hypothesis from the standard model. That produced a result of γ = 0.459±0.057. Both of these results agree with the world experimental average and the standard model within 1σ. The analysis procedure is described in this dissertation along with an in depth treatment of the simulation software produced for the determination of the system acceptance. Note: Abstract extracted from PDF text
Language
English
Published
University of Virginia, Department of Physics, PHD, 2012
Published Date
2012-05-01
Degree
PHD
Collection
Libra ETD Repository
In CopyrightIn Copyright
▾See more
▴See less

Availability

Read Online