Search for top squarks in the four-body decay mode with single lepton final states in proton-proton collisions at SQUARE ROOTs=13 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10492803" target="_blank" >RIV/00216208:11320/23:10492803 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=lvR.s.vHqz" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=lvR.s.vHqz</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP06(2023)060" target="_blank" >10.1007/JHEP06(2023)060</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for top squarks in the four-body decay mode with single lepton final states in proton-proton collisions at SQUARE ROOTs=13 TeV

Popis výsledku v původním jazyce

A search for the pair production of the lightest supersymmetric partner of the top quark, the top squark ((t) over tilde (1)), is presented. The search targets the four-body decay of the (t) over tilde (1), which is preferred when the mass difference between the top squark and the lightest supersymmetric particle is smaller than the mass of the W boson. This decay mode consists of a bottom quark, two other fermions, and the lightest neutralino ( (x) over tilde (0)(1)), which is assumed to be the lightest supersymmetric particle. The data correspond to an integrated luminosity of 138 fb(-1) of proton-proton collisions at a center-of-mass energy of 13TeV collected by the CMS experiment at the CERN LHC. Events are selected using the presence of a high-momentum jet, an electron or muon with low transverse momentum, and a significant missing transverse momentum. The signal is selected based on a multivariate approach that is optimized for the difference between m( (t) over tilde (1)) and m( (x) over tilde (0)(1)). The contribution from leading background processes is estimated from data. No significant excess is observed above the expectation from standard model processes. The results of this search exclude top squarks at 95% confidence level for masses up to 480 and 700 GeV for m( (t) over tilde (1))- m( (x) over tilde (0)(1)) = 10 and 80 GeV, respectively.

Název v anglickém jazyce

Search for top squarks in the four-body decay mode with single lepton final states in proton-proton collisions at SQUARE ROOTs=13 TeV

Popis výsledku anglicky

A search for the pair production of the lightest supersymmetric partner of the top quark, the top squark ((t) over tilde (1)), is presented. The search targets the four-body decay of the (t) over tilde (1), which is preferred when the mass difference between the top squark and the lightest supersymmetric particle is smaller than the mass of the W boson. This decay mode consists of a bottom quark, two other fermions, and the lightest neutralino ( (x) over tilde (0)(1)), which is assumed to be the lightest supersymmetric particle. The data correspond to an integrated luminosity of 138 fb(-1) of proton-proton collisions at a center-of-mass energy of 13TeV collected by the CMS experiment at the CERN LHC. Events are selected using the presence of a high-momentum jet, an electron or muon with low transverse momentum, and a significant missing transverse momentum. The signal is selected based on a multivariate approach that is optimized for the difference between m( (t) over tilde (1)) and m( (x) over tilde (0)(1)). The contribution from leading background processes is estimated from data. No significant excess is observed above the expectation from standard model processes. The results of this search exclude top squarks at 95% confidence level for masses up to 480 and 700 GeV for m( (t) over tilde (1))- m( (x) over tilde (0)(1)) = 10 and 80 GeV, respectively.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

neuveden

Číslo periodika v rámci svazku

06

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

51

Strana od-do

060

Kód UT WoS článku

001035579500001

EID výsledku v databázi Scopus

2-s2.0-85168275841