scholarly journals Search for lepton flavour violation with the ATLAS detector

2019 ◽  
Author(s):  
Wing Sheung Chan ◽  
Keyword(s):  
Atlas Detector ◽  
Lepton Flavour Violation ◽  
Flavour Violation ◽  
Lepton Flavour

scholarly journals Search for lepton-flavour-violating decays of the $Z$ boson into a $\tau$-lepton and a light lepton with the ATLAS detector

2019 ◽  
Author(s):  
Wing Sheung Chan
Keyword(s):  
Atlas Detector ◽  
Beyond The Standard Model ◽  
Centre Of Mass ◽  
Mass Energy ◽  
Lepton Flavour Violation ◽  
Lepton Flavor ◽  
Upper Limits ◽  
Flavour Violation ◽  
8 Tev ◽  
Lepton Flavour

Lepton flavour violation in the charged lepton sector is an unambiguous signal of physics beyond the Standard Model. Searches for lepton flavour violation in decays of the ZZ boson with the ATLAS detector is reported, focusing on decays into an electron or muon and a hadronically decaying \tauτ-lepton, using pppp collisions data with a centre-of-mass energy of 13 TeV. Upper limits on the branching ratios of lepton-flavor-violating decays are set at the 95% confidence level: \mathcal{B}(Z\to e\tau) < 5.8\times10^{-5}ℬ(Z→eτ)<5.8×10−5 and \mathcal{B}(Z\to \mu\tau) < 2.4\times10^{-5}ℬ(Z→μτ)<2.4×10−5. When combined with a previous ATLAS result based on pppp collisions data with a centre-of-mass energy of 8 TeV, an upper limit of \mathcal{B}(Z\to \mu\tau) < 1.3\times10^{-5}ℬ(Z→μτ)<1.3×10−5 is obtained.

Searches for lepton-flavour violation

1995 ◽  
Vol 58 (1) ◽  
pp. 61-114 ◽  
Author(s):  
P Depommier ◽  
C Leroy
Keyword(s):  
Lepton Flavour Violation ◽  
Flavour Violation ◽  
Lepton Flavour
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