Search for top squarks decaying via four-body or chargino-mediated modes in single-lepton final states in proton-proton collisions at root s=13 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10383959" target="_blank" >RIV/00216208:11320/18:10383959 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/JHEP09(2018)065" target="_blank" >https://doi.org/10.1007/JHEP09(2018)065</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP09(2018)065" target="_blank" >10.1007/JHEP09(2018)065</a>
Alternative languages
Result language
angličtina
Original language name
Search for top squarks decaying via four-body or chargino-mediated modes in single-lepton final states in proton-proton collisions at root s=13 TeV
Original language description
A search for the pair production of the lightest supersymmetric partner of the top quark ((t) over tilde (1)) is presented. The search focuses on a compressed scenario where the mass difference between the top squark and the lightest supersymmetric particle, often considered to be the lightest neutralino (( chi) over tilde (0)(1)), is smaller than the mass of the W boson. The proton-proton collision data were recorded by the CMS experiment at a centre-of-mass energy of 13 TeV, and correspond to an integrated luminosity of 35.9 fb(-1). In this search, two decay modes of the top squark are considered: a four-body decay into a bottom quark, two additional fermions, and a (chi) over tilde (1)(0); and a decay via an intermediate chargino. Events are selected using the presence of a high-momentum jet, significant missing transverse momentum, and a low transverse momentum electron or muon. Two analysis techniques are used, targeting different decay modes ((t) over tilde (1)): of the a sequential selection and a multivariate technique. No evidence for the production of top squarks is found, and mass limits at 95% confidence level are set that reach up to 560 GeV, depending on the m((t) over tilde (1)) - m((chi) over tilde (0)(1)) mass difference and the decay mode.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/LG14004" target="_blank" >LG14004: Cooperation of Czech Republic with JINR Dubna in the theoretical and nuclear physics and application of nuclear methods in other fields</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics [online]
ISSN
1029-8479
e-ISSN
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Volume of the periodical
2018
Issue of the periodical within the volume
9
Country of publishing house
DE - GERMANY
Number of pages
47
Pages from-to
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UT code for WoS article
000444842500001
EID of the result in the Scopus database
2-s2.0-85053433287