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# Search for a singly produced third-generation scalar leptoquark decaying to a τ lepton and a bottom quark in proton-proton collisions at s√=13s=13 TeV

Sirunyan, A.M. and Tumasyan, A. , The CMS Collaboration (2018) Search for a singly produced third-generation scalar leptoquark decaying to a τ lepton and a bottom quark in proton-proton collisions at s√=13s=13 TeV. Journal of High Energy Physics, 2018 (115), 1-39.

Record type: Article

## Abstract

A search is presented for a singly produced third-generation scalar leptoquark decaying to a τ lepton and a bottom quark. Associated production of a leptoquark and a τ lepton is considered, leading to a final state with a bottom quark and two τ leptons. The search uses proton-proton collision data at a center-of-mass energy of 13 TeV recorded with the CMS detector, corresponding to an integrated luminosity of 35.9 fb−1. Upper limits are set at 95% confidence level on the production cross section of the third-generation scalar leptoquarks as a function of their mass. From a comparison of the results with the theoretical predictions, a third-generation scalar leptoquark decaying to a τ lepton and a bottom quark, assuming unit Yukawa coupling (λ), is excluded for masses below 740 GeV. Limits are also set on λ of the hypothesized leptoquark as a function of its mass. Above λ = 1.4, this result provides the best upper limit on the mass of a third-generation scalar leptoquark decaying to a τ lepton and a bottom quark.

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Sirunyan2018_Article_SearchForASinglyProducedThird- - Version of Record

Accepted/In Press date: 18 July 2018
e-pub ahead of print date: 18 July 2018
Published date: July 2018

## Identifiers

Local EPrints ID: 424670
URI: http://eprints.soton.ac.uk/id/eprint/424670
ISSN: 1029-8479
PURE UUID: ef1f34f7-9358-4f6e-891c-6ac273997b25
ORCID for A. Belyaev: orcid.org/0000-0002-1733-4408

## Catalogue record

Date deposited: 05 Oct 2018 11:40

## Contributors

Author: A.M. Sirunyan
Author: A. Tumasyan
Author: A. Belyaev
Corporate Author: The CMS Collaboration