Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s = 8 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00455155" target="_blank" >RIV/68378271:_____/15:00455155 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/JHEP09(2015)108" target="_blank" >http://dx.doi.org/10.1007/JHEP09(2015)108</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP09(2015)108" target="_blank" >10.1007/JHEP09(2015)108</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s = 8 TeV with the ATLAS detector

Popis výsledku v původním jazyce

A search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at s=8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb1. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived. The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114?176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100?468 GeV are excluded.

Název v anglickém jazyce

Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at s = 8 TeV with the ATLAS detector

Popis výsledku anglicky

A search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at s=8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb1. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived. The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114?176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100?468 GeV are excluded.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

<a href="/cs/project/LG13009" target="_blank" >LG13009: Mezinárodní experiment ATLAS-CERN</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

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

—

Svazek periodika

2015

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

37

Strana od-do

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Kód UT WoS článku

000363539700001

EID výsledku v databázi Scopus

2-s2.0-84942309326