Search for lepton-flavour-violating decays of the $$Z$$ boson into a $$\tau$$-lepton and a light lepton with the ATLAS detector
Abstract
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 Z boson with the ATLAS detector is reported, focusing on decays into an electron or muon and a hadronically decaying \tau -lepton, using pp 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} and \mathcal{B}(Z\to \mu\tau) < 2.4\times10^{-5} . When combined with a previous ATLAS result based on pp 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} is obtained.
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1495811
- Resource Type:
- Published Article
- Journal Name:
- SciPost Physics Proceedings
- Additional Journal Information:
- Journal Name: SciPost Physics Proceedings Journal Issue: 1
- Publisher:
- Stichting SciPost
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Citation Formats
Chan, Wing Sheung. Search for lepton-flavour-violating decays of the $Z$ boson into a $\tau$-lepton and a light lepton with the ATLAS detector. Country unknown/Code not available: N. p., 2019.
Web. doi:10.21468/SciPostPhysProc.1.048.
Chan, Wing Sheung. Search for lepton-flavour-violating decays of the $Z$ boson into a $\tau$-lepton and a light lepton with the ATLAS detector. Country unknown/Code not available. https://doi.org/10.21468/SciPostPhysProc.1.048
Chan, Wing Sheung. Fri .
"Search for lepton-flavour-violating decays of the $Z$ boson into a $\tau$-lepton and a light lepton with the ATLAS detector". Country unknown/Code not available. https://doi.org/10.21468/SciPostPhysProc.1.048.
@article{osti_1495811,
title = {Search for lepton-flavour-violating decays of the $Z$ boson into a $\tau$-lepton and a light lepton with the ATLAS detector},
author = {Chan, Wing Sheung},
abstractNote = {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 Z Z boson with the ATLAS detector is reported, focusing on decays into an electron or muon and a hadronically decaying \tau τ -lepton, using pp p p 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 → e τ ) < 5.8 × 10 − 5 and \mathcal{B}(Z\to \mu\tau) < 2.4\times10^{-5} ℬ ( Z → μ τ ) < 2.4 × 10 − 5 . When combined with a previous ATLAS result based on pp p p 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 → μ τ ) < 1.3 × 10 − 5 is obtained.},
doi = {10.21468/SciPostPhysProc.1.048},
journal = {SciPost Physics Proceedings},
number = 1,
volume = ,
place = {Country unknown/Code not available},
year = {Fri Feb 22 00:00:00 EST 2019},
month = {Fri Feb 22 00:00:00 EST 2019}
}
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https://doi.org/10.21468/SciPostPhysProc.1.048
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