Repository logo
 
Publication

Constraints on models of scalar and vector leptoquarks decaying to a quark and a neutrino at $\sqrt{s}=$ 13 TeV

2018-08-11Journal article Open access
Simple item page
dc.contributor.authorCMS collaboration (2303 authors)
dc.contributor.authorNayak, Aruna
dc.contributor.authorBargassa, Pedrame
dc.contributor.authorBeirão Da Cruz E Silva, Cristóvão
dc.contributor.authorDi Francesco, Agostino
dc.contributor.authorFaccioli, Pietro
dc.contributor.authorGalinhas, Bruno
dc.contributor.authorGallinaro, Michele
dc.contributor.authorHollar, Jonathan
dc.contributor.authorLeonardo, Nuno
dc.contributor.authorLloret Iglesias, Lara
dc.contributor.authorSeixas, Joao
dc.contributor.authorStrong, Giles
dc.contributor.authorToldaiev, Oleksii
dc.contributor.authorVadruccio, Daniele
dc.contributor.authorVarela, Joao
dc.contributor.authorVischia, Pietro
dc.contributor.authorDavid Tinoco Mendes, Andre
dc.contributor.authorSilva, Pedro
dc.contributor.authorMusella, Pasquale
dc.date.accessioned2019-02-05T16:25:39Z
dc.date.available2019-02-05T16:25:39Z
dc.date.issued2018-08-11
dc.date.updated2019-02-05T16:25:38Z
dc.description.abstractThe results of a previous search by the CMS Collaboration for squarks and gluinos are reinterpreted to constrain models of leptoquark (LQ) production. The search considers jets in association with a transverse momentum imbalance, using the MT2 variable. The analysis uses proton-proton collision data at s=13  TeV, recorded with the CMS detector at the LHC in 2016 and corresponding to an integrated luminosity of 35.9  fb-1. Leptoquark pair production is considered with LQ decays to a neutrino and a top, bottom, or light quark. This reinterpretation considers higher mass values than the original CMS search to constrain both scalar and vector LQs. Limits on the cross section for LQ pair production are derived at the 95% confidence level depending on the LQ decay mode. A vector LQ decaying with a 50% branching fraction to tν, and 50% to bτ, has been proposed as part of an explanation of anomalous flavor physics results. In such a model, using only the decays to tν, LQ masses below 1530 GeV are excluded assuming the Yang-Mills case with coupling κ=1, or 1115 GeV in the minimal coupling case κ=0, placing the most stringent constraint to date from pair production of vector LQs.
dc.description.versionPeer Reviewed
dc.identifierPhys.Rev. D98 (2018) 032005 Phys. Rev. D 98, 032005 (2018); DOI 10.1103/PhysRevD.98.032005
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevD.98.032005
dc.identifier.urihttp://hdl.handle.net/10400.26/27646
dc.language.isoeng
dc.relationAdvanced Multi-Variate Analysis for New Physics Searches at the LHC
dc.titleConstraints on models of scalar and vector leptoquarks decaying to a quark and a neutrino at $\sqrt{s}=$ 13 TeV
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAdvanced Multi-Variate Analysis for New Physics Searches at the LHC
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/675440/EU
oaire.fundingStreamH2020
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt
rcaap.typearticle
relation.isProjectOfPublicationd1fe0247-7df8-4eac-ad17-2d56bfcafa24
relation.isProjectOfPublication.latestForDiscoveryd1fe0247-7df8-4eac-ad17-2d56bfcafa24

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1.pdf
Size:
476.67 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.85 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

LIP - AP - Física de Partículas e Astropartículas