Search for long-lived particles decaying to a pair of muons 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%3A10492819" target="_blank" >RIV/00216208:11320/23:10492819 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sPdfkWSH77" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sPdfkWSH77</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP05(2023)228" target="_blank" >10.1007/JHEP05(2023)228</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for long-lived particles decaying to a pair of muons in proton-proton collisions at SQUARE ROOTs=13 TeV

Popis výsledku v původním jazyce

An inclusive search for long-lived exotic particles decaying to a pair of muons is presented. The search uses data collected by the CMS experiment at the CERN LHC in proton-proton collisions at root s = 13 TeV in 2016 and 2018 and corresponding to an integrated luminosity of 97.6 fb(-1). The experimental signature is a pair of oppositely charged muons originating from a common secondary vertex spatially separated from the pp interaction point by distances ranging from several hundred mu m to several meters. The results are interpreted in the frameworks of the hidden Abelian Higgs model, in which the Higgs boson decays to a pair of long-lived dark photons Z(D), and of a simplified model, in which long-lived particles are produced in decays of an exotic heavy neutral scalar boson. For the hidden Abelian Higgs model with m(Z(D)) greater than 20 GeV and less than half the mass of the Higgs boson, they provide the best limits to date on the branching fraction of the Higgs boson to dark photons for c tau(Z(D)) (varying with m(Z(D))) between 0.03 and approximate to 0.5 mm, and above approximate to 0.5 m. Our results also yield the best constraints on long-lived particles with masses larger than 10 GeV produced in decays of an exotic scalar boson heavier than the Higgs boson and decaying to a pair of muons.

Název v anglickém jazyce

Search for long-lived particles decaying to a pair of muons in proton-proton collisions at SQUARE ROOTs=13 TeV

Popis výsledku anglicky

An inclusive search for long-lived exotic particles decaying to a pair of muons is presented. The search uses data collected by the CMS experiment at the CERN LHC in proton-proton collisions at root s = 13 TeV in 2016 and 2018 and corresponding to an integrated luminosity of 97.6 fb(-1). The experimental signature is a pair of oppositely charged muons originating from a common secondary vertex spatially separated from the pp interaction point by distances ranging from several hundred mu m to several meters. The results are interpreted in the frameworks of the hidden Abelian Higgs model, in which the Higgs boson decays to a pair of long-lived dark photons Z(D), and of a simplified model, in which long-lived particles are produced in decays of an exotic heavy neutral scalar boson. For the hidden Abelian Higgs model with m(Z(D)) greater than 20 GeV and less than half the mass of the Higgs boson, they provide the best limits to date on the branching fraction of the Higgs boson to dark photons for c tau(Z(D)) (varying with m(Z(D))) between 0.03 and approximate to 0.5 mm, and above approximate to 0.5 m. Our results also yield the best constraints on long-lived particles with masses larger than 10 GeV produced in decays of an exotic scalar boson heavier than the Higgs boson and decaying to a pair of muons.

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

05

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

58

Strana od-do

228

Kód UT WoS článku

001022896900001

EID výsledku v databázi Scopus

2-s2.0-85164839983