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Search for Third-Generation Scalar Leptoquarks in the t$ Channel in Proton-Proton Collisions at $s$ = 8 TeV

Search for Third-Generation Scalar Leptoquarks in the t$ Channel in Proton-Proton Collisions at $s$ = 8 TeV
Search for Third-Generation Scalar Leptoquarks in the t$ Channel in Proton-Proton Collisions at $s$ = 8 TeV
A search for pair production of third-generation scalar leptoquarks decaying to top quark and τ lepton pairs is presented using proton-proton collision data at a center-of-mass energy of s √ =8
s=8
TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 19.7 fb−1. The search is performed using events that contain an electron or a muon, a hadronically decaying τ lepton, and two or more jets. The observations are found to be consistent with the standard model predictions. Assuming that all leptoquarks decay to a top quark and a τ lepton, the existence of pair produced, charge −1/3, third-generation leptoquarks up to a mass of 685 GeV is excluded at 95% confidence level. This result constitutes the first direct limit for leptoquarks decaying into a top quark and a τ lepton, and may also be applied directly to the pair production of bottom squarks decaying predominantly via the R-parity violating coupling λ333′.
1029-8479
042
Khachatryan, Vardan
375bcfe5-df1a-41ad-9a90-553e557ef6d6
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Khachatryan, Vardan
375bcfe5-df1a-41ad-9a90-553e557ef6d6
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

The CMS Collaboration (2015) Search for Third-Generation Scalar Leptoquarks in the t$ Channel in Proton-Proton Collisions at $s$ = 8 TeV. Journal of High Energy Physics, 07, 042. (doi:10.1007/JHEP07(2015)042).

Record type: Article

Abstract

A search for pair production of third-generation scalar leptoquarks decaying to top quark and τ lepton pairs is presented using proton-proton collision data at a center-of-mass energy of s √ =8
s=8
TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 19.7 fb−1. The search is performed using events that contain an electron or a muon, a hadronically decaying τ lepton, and two or more jets. The observations are found to be consistent with the standard model predictions. Assuming that all leptoquarks decay to a top quark and a τ lepton, the existence of pair produced, charge −1/3, third-generation leptoquarks up to a mass of 685 GeV is excluded at 95% confidence level. This result constitutes the first direct limit for leptoquarks decaying into a top quark and a τ lepton, and may also be applied directly to the pair production of bottom squarks decaying predominantly via the R-parity violating coupling λ333′.

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More information

Published date: July 2015
Additional Information: [Erratum: JHEP11,056(2016)]
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 410656
URI: http://eprints.soton.ac.uk/id/eprint/410656
ISSN: 1029-8479
PURE UUID: 12f3b0f4-0fbd-4cd1-b227-b40ff41cb1a0
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

Catalogue record

Date deposited: 09 Jun 2017 09:18
Last modified: 16 Mar 2024 03:54

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Contributors

Author: Vardan Khachatryan
Corporate Author: The CMS Collaboration

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