Angular analysis of new physics operators in polarized tau arrow right 3 decays

In a bottom-up approach we investigate lepton-flavour violating processes tau arrow right 3 that are mediated by New Physics encoded in effective-theory operators of dimension six. While the opportunity to scrutinize the underlying operator structure has been investigated before, we explore the bene...

Full description

Saved in:
Bibliographic Details
Published inThe journal of high energy physics Vol. 2015; no. 10; pp. 1 - 32
Main Authors Brueser, Robin, Feldmann, Thorsten, Lange, Bjorn O, Mannel, Thomas, Turczyk, Sascha
Format Journal Article
LanguageEnglish
Published 01.10.2015
Subjects
Angular distribution
Asymmetry
Coupling coefficients
Decay
Estimates
Operators
Polarization
Spectra
Online AccessGet full text

Cover

More Information
Summary:In a bottom-up approach we investigate lepton-flavour violating processes tau arrow right 3 that are mediated by New Physics encoded in effective-theory operators of dimension six. While the opportunity to scrutinize the underlying operator structure has been investigated before, we explore the benefits of utilising the polarization direction of the initial tau lepton and the angular distribution of the decay. Given the rarity of these events (if observed at all), we focus on integrated observables rather than spectra, such as partial rates and asymmetries. In an effort to estimate the number of events required to extract the coupling coefficients to the effective operators we perform a phenomenological study with virtual experiments.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
content type line 23
ObjectType-Feature-2
ISSN:1029-8479
DOI:10.1007/JHEP10(2015)082