Search for the charged-lepton-flavor-violating decay Z→eμ in pp collisions at √s=13  TeV with the ATLAS detector

ATLAS Publications; T.M. Carter; A. Hasib; M.P. Heath; S. Palazzo; E.P. Takeva; N. Themistokleous; E.M. Villhauer; E. Zaid

doi:10.1103/PhysRevD.108.032015

Search for the charged-lepton-flavor-violating decay Z→eμ in pp collisions at √s=13 TeV with the ATLAS detector

ATLAS Publications, T.M. Carter, A. Hasib, M.P. Heath, S. Palazzo, E.P. Takeva, N. Themistokleous, E.M. Villhauer, E. Zaid

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

A search for the charged-lepton-flavor-violating process Z→eμ is presented, using 139 fb−1 of √s=13 TeV pp collision data collected by the ATLAS experiment at the LHC. An excess in the eμ invariant mass spectrum near the Z boson mass would be a striking signature of new physics. No excess is observed, and an upper limit B(Z→eμ)<2.62×10−7 is placed on the branching fraction at 95% confidence level, which is the most stringent limit to date.

Original language	English
Article number	032015
Pages (from-to)	1-22
Number of pages	22
Journal	Physical Review D
Volume	108
DOIs	https://doi.org/10.1103/PhysRevD.108.032015
Publication status	Published - 25 Aug 2023

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http://arxiv.org/abs/2204.10783

1 Active
5 Finished

Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P. (Principal Investigator)
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/04/23 → 30/09/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/10/22 → 30/09/25
Project: Research

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title = "Search for the charged-lepton-flavor-violating decay Z→eμ in pp collisions at √s=13 TeV with the ATLAS detector",

abstract = "A search for the charged-lepton-flavor-violating process Z→eμ is presented, using 139 fb−1 of √s=13 TeV pp collision data collected by the ATLAS experiment at the LHC. An excess in the eμ invariant mass spectrum near the Z boson mass would be a striking signature of new physics. No excess is observed, and an upper limit B(Z→eμ)<2.62×10−7 is placed on the branching fraction at 95\% confidence level, which is the most stringent limit to date.",

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AU - ATLAS Publications

AU - Clark, Philip James

AU - Farrington, Sinead

AU - Gao, Yanyan

AU - Leonidopoulos, Christos

AU - Martin, Victoria Jane

AU - Mijovic, Liza

AU - Wynne, Benjamin

AU - Alderweireldt, Sara

AU - Carter, T.M.

AU - Hasib, A.

AU - Heath, M.P.

AU - Palazzo, S.

AU - Takeva, E.P.

AU - Themistokleous, N.

AU - Villhauer, E.M.

AU - Zaid, E.

PY - 2023/8/25

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AB - A search for the charged-lepton-flavor-violating process Z→eμ is presented, using 139 fb−1 of √s=13 TeV pp collision data collected by the ATLAS experiment at the LHC. An excess in the eμ invariant mass spectrum near the Z boson mass would be a striking signature of new physics. No excess is observed, and an upper limit B(Z→eμ)<2.62×10−7 is placed on the branching fraction at 95% confidence level, which is the most stringent limit to date.

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JF - Physical Review D

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ER -

Search for the charged-lepton-flavor-violating decay Z→eμ in pp collisions at √s=13 TeV with the ATLAS detector

Abstract

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Projects

Upgrade of the ATLAS detector at the LHC (2023-26)

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

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