Measurement of the Michel parameter [rho] in muon decay /

Bibliographic Details
Main Author:	Musser, James Raymond, 1965-
Other Authors:	Gagliardi, Carl A. (Thesis advisor)
Format:	Thesis eBook
Language:	English
Published:	[College Station, Tex.] : [Texas A&M University], [2006]
Subjects:	Major physics. rho muon Michel
Online Access:	Link to OAK Trust copy

Description
Abstract:	The TWIST Collaboration has measured the Michel parameter [rho] in normal muon decay, [mu]⁺ --> [epsilon]⁺v[subscript epsilon]v̄[subscript mu]. In the standard model of particle physics, [rho] = 3/4. Deviations from this value require mixing of left- and right-handed muon and electron couplings in the muon-decay Lagrangian. We find [rho] = 0.75080 ±0.00032(stat.)±0.00097(syst.) ±0.00023, where the last uncertainty represents the dependence of [rho] on the Michel parameter [eta]. This result sets new limits on the W[subscript]L - W[subscript]R mixing angle in left-right symmetric models.
Item Description:	"Major Subject: Physics" Title from author supplied metadata (automated record created on Apr. 14, 2006.) Vita. Abstract. Electronic resource.
Format:	Mode of access: World Wide Web. System requirements: World Wide Web access and Adobe Acrobat Reader.
Bibliography:	Includes bibliographical references.