Search for lepton-flavour-violating decays of Higgs-like bosons

Peter Clarke; Greig Cowan; Stephan Eisenhardt; Silvia Gambetta; Franz Muheim; Matthew Needham; Stephen Playfer; LHCb Collaboration; Marco Pappagallo

doi:10.1140/epjc/s10052-018-6386-8

Search for lepton-flavour-violating decays of Higgs-like bosons

Peter Clarke, Greig Cowan, Stephan Eisenhardt, Silvia Gambetta, Franz Muheim, Matthew Needham, Stephen Playfer, LHCb Collaboration, Marco Pappagallo

School of Physics and Astronomy

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

Abstract

A search is presented for a Higgs-like boson with mass in the range 45 to 195 GeV/$c^2$ decaying into a muon and a tau lepton. The dataset consists of proton-proton interactions at a centre-of-mass energy of 8 TeV, collected by the LHCb experiment, corresponding to an integrated luminosity of 2 fb$^{-1}$. The tau leptons are reconstructed in both leptonic and hadronic decay channels. An upper limit on the production cross-section multiplied by the branching fraction at 95% confidence level is set and ranges from 22 pb for a boson mass of 45 GeV/$c^2$ to 4 pb for a mass of 195 GeV/$c^2$.

Original language	English
Article number	1008
Journal	The European Physical Journal C (EPJ C)
Volume	C78
Issue number	12
Early online date	12 Dec 2018
DOIs	https://doi.org/10.1140/epjc/s10052-018-6386-8
Publication status	E-pub ahead of print - 12 Dec 2018

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title = "Search for lepton-flavour-violating decays of Higgs-like bosons",

abstract = "A search is presented for a Higgs-like boson with mass in the range 45 to 195 GeV/\$c\textasciicircum{}2\$ decaying into a muon and a tau lepton. The dataset consists of proton-proton interactions at a centre-of-mass energy of 8 TeV, collected by the LHCb experiment, corresponding to an integrated luminosity of 2 fb\$\textasciicircum{}\{-1\}\$. The tau leptons are reconstructed in both leptonic and hadronic decay channels. An upper limit on the production cross-section multiplied by the branching fraction at 95\% confidence level is set and ranges from 22 pb for a boson mass of 45 GeV/\$c\textasciicircum{}2\$ to 4 pb for a mass of 195 GeV/\$c\textasciicircum{}2\$.",

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AU - Clarke, Peter

AU - Cowan, Greig

AU - Eisenhardt, Stephan

AU - Gambetta, Silvia

AU - Muheim, Franz

AU - Needham, Matthew

AU - Playfer, Stephen

AU - Collaboration, LHCb

AU - Pappagallo, Marco

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AB - A search is presented for a Higgs-like boson with mass in the range 45 to 195 GeV/$c^2$ decaying into a muon and a tau lepton. The dataset consists of proton-proton interactions at a centre-of-mass energy of 8 TeV, collected by the LHCb experiment, corresponding to an integrated luminosity of 2 fb$^{-1}$. The tau leptons are reconstructed in both leptonic and hadronic decay channels. An upper limit on the production cross-section multiplied by the branching fraction at 95% confidence level is set and ranges from 22 pb for a boson mass of 45 GeV/$c^2$ to 4 pb for a mass of 195 GeV/$c^2$.

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JO - The European Physical Journal C (EPJ C)

JF - The European Physical Journal C (EPJ C)

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Search for lepton-flavour-violating decays of Higgs-like bosons

Abstract

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